JP4502748B2 - Server and method for managing volume for storing digital archive - Google Patents

Description

  The present invention relates to a technique for storing a digital archive, for example, a server, a method, and a storage system for managing a volume that is a data storage area provided on a disk-type storage device.

  There is a need to manage data such as e-mail as a digital archive. As a device for this need, for example, a jukebox device equipped with a plurality of recording / reproducing devices is known.

  Specifically, for example, in Japanese Patent Laid-Open No. 2000-57672 (Patent Document 1), when a write address exceeding the recording capacity of one recording medium is designated from the upper apparatus 8a, the second recording medium The physical address is converted into a logical address and writing is accepted. The recording medium is an optical disk or the like (paragraph 38).

JP 2000-57672 A

As a recording medium disclosed in Patent Document 1, a CD (Compact Disk), a DVD (Digital Versatile Disk), or the like can be considered. Therefore, when managing a digital archive by writing a digital archive on a recording medium in a jukebox device such as Patent Document 1, for example, if at least one of the following problems (1) to (3) occurs: Conceivable.
(1) It takes a long time to write.
(2) It takes time to replace the recording medium by the robot mechanism.
(3) In order to prepare for damage to the recording medium, it is necessary to transport and store the recording medium in a physically separated place.

As a method for solving such a problem, a method is conceivable in which a digital archive is written not to a recording medium in a jukebox device but to a disk type storage device in a storage control system such as a RAID system. If this method is adopted, it is considered that at least one of the problems (1) to (3) described above can be solved. However, if the digital archive is simply written to a disk-type storage device in the storage control system, another problem, for example, at least one of the following problems (a) to (c) may occur. .
(A) There is a burden that the writing source device (for example, the host device) of the digital archive has to manage the configuration of the disk type storage device in the storage control system. This is considered to be more burdensome if the configuration in the storage control system becomes complicated or the number of write destination storage control systems increases.
(B) It is necessary to recover data even if the disk type storage device is damaged.
(C) There are several types of disk storage devices, and there is a trade-off between cost and performance, so it is difficult to determine which disk storage device the digital archive should be written to.

  Accordingly, an object of the present invention is to improve the convenience of storing digital archives. Specifically, for example, an object of the present invention is at least one of the above-mentioned problems (a) to (c) that may occur when a digital archive is written to a disk-type storage device in a storage control system. Is to eliminate.

  Further objects of the present invention will become clear from the following description.

  The server according to the first aspect of the present invention is a server connected to an archive host that outputs a digital archive and a plurality of storage control systems including a disk-type storage device that stores the digital archive. The two or more disk-type storage devices included in the plurality of storage control systems are provided with a plurality of physical volumes that are storage areas for storing digital archives. In each of the storage control systems, one or more physical IDs respectively assigned to one or more physical volumes included in the storage control system among the plurality of physical volumes are managed. The archive host manages a plurality of logical IDs respectively assigned to the plurality of physical volumes. The server includes, for each of the plurality of physical volumes, a volume management storage area that stores the logical ID, the physical ID, and a control system ID of a storage control system including the physical volume, and the plurality of logical IDs. An extraction unit that extracts a physical ID and a control system ID corresponding to the received logical ID from the volume management storage area when the designation of the logical ID selected from the archive host is received from the archive host; Access path notifying means for notifying the archive host of access path information for accessing a physical volume having the physical ID, which is information based on the physical ID and the control system ID.

  Here, “notifying the access path information to the archive host” means that the access path information is notified to the archive host in accordance with the output from the server. And the storage control system notifies the archive host of access path information.

  In the first embodiment of the server, the storage control system includes a host connection unit (for example, LUN, which will be described later) connected to the archive host, and 1 that is not logically connected to the host connection unit. And a volume pool composed of the above physical volumes. The server outputs a connection instruction for logically connecting a physical volume corresponding to the grasped physical ID to the host connection unit to the storage control system identified from the acquired control system ID. Disconnection instruction for disconnecting the connection between the physical volume corresponding to the acquired physical ID and the host connection unit after the archive host accesses the physical volume corresponding to the extracted physical ID Is further provided with disconnection instruction means for outputting to the storage control system specified from the extracted control system ID.

  In the second embodiment of the server, the volume management area further stores an archive retention period and a volume state for each of the plurality of physical volumes. The server further includes a retention period setting unit and a write prohibition state setting unit. The retention period setting means records the retention period corresponding to the physical volume in which the digital archive is stored in the volume management storage area after the digital archive is stored in the physical volume corresponding to the extracted physical ID. . The write prohibition state setting means sets the write prohibition state as the volume state corresponding to the physical volume in which the digital archive is stored after the digital archive is stored in the physical volume corresponding to the extracted physical ID. Record in the storage area.

  In a third embodiment of the server, in the second embodiment, in each of the plurality of storage control systems, a storage area that stores each volume state of each physical volume included in the storage control system; And a storage control device that controls access from the archive host to each physical volume based on each volume status, the server prohibits writing the volume status of the physical volume in which the digital archive is stored It further comprises write prohibition instructing means for instructing the storage control system having the physical volume in which the digital archive is stored.

  In the fourth embodiment of the server, the volume management area further stores a volume state for each of the plurality of physical volumes. The server further includes a copy destination physical volume selection unit and an archive copy unit. The copy destination physical volume selection means selects a copy destination physical volume that can store a digital archive in the copy source physical volume selected from the plurality of physical volumes based on the volume state, from the plurality of physical volumes. Select from volumes. The archive duplicating means controls at least one of the first storage control system having the duplication source physical volume and the second storage control system having the duplication destination physical volume, and performs digital archive in the duplication source physical volume. Are created in the copy destination physical volume.

  In the fifth embodiment of the server, in the fourth embodiment, the disk characteristics relating to the disk-type storage device having a physical volume are high reliability or high performance and lower reliability than the high reliability. There is low reliability which means that, or low performance which means that the performance is lower than the high performance. The volume management storage area stores the disk characteristics for each of a plurality of physical volumes. The replication destination physical volume selection means selects the replication destination physical volume based on the disk characteristics.

  In the sixth embodiment of the server, the volume management area further stores a volume state for each of the plurality of physical volumes. The server includes a migration destination physical volume selection unit and an archive migration unit. The migration destination physical volume selection means selects a migration destination physical volume that can store a digital archive in the migration source physical volume selected from the plurality of physical volumes based on the volume state, as the plurality of physical volumes. Select from volumes. The archive migration means controls at least one of the first storage control system having the migration source physical volume and the second storage control system having the replication destination physical volume, and performs digital archiving in the migration source physical volume. To the destination physical volume.

  In the seventh embodiment of the server, in the sixth embodiment, the disk characteristics relating to the disk-type storage device having a physical volume are high reliability or high performance and lower reliability than the high reliability. There is low reliability which means that, or low performance which means that the performance is lower than the high performance. The volume management area stores the disk characteristics for each of the plurality of physical volumes. The migration destination physical volume selection unit selects the migration destination physical volume based on the disk characteristics.

  In at least one of the fifth and seventh embodiments, the server stores, for example, a physical volume whose archive retention period expires after a predetermined time (for example, after 3 days), and an unused storage capacity. Physical volume with less or more capacity (for example, 300 MB), physical volume with access frequency lower or higher than a predetermined frequency (for example, 50 times per minute), or importance with a predetermined criterion (for example, medium degree of importance) The higher or lower physical volume can be selected as the replication source physical volume or the migration source physical volume.

In addition, for example, the server has attributes of the replication source physical volume or the migration source physical volume as follows (1) to (4)
(1) The storage period is farther than a predetermined time (for example, 180 days),
(2) An unused storage capacity larger than a predetermined capacity (for example, 20 GB),
(3) The access frequency is higher than a predetermined frequency (for example, 50 times per minute),
(4) The importance is higher than a predetermined standard (for example, importance “medium”),
In this case, a physical volume whose disk characteristics are highly reliable or high performance can be selected as a replication destination physical volume or a migration destination physical volume.

On the other hand, for example, the server has attributes of the replication source physical volume or the migration source physical volume as described in
(A) The storage period is shorter than a predetermined time (for example, 3 days),
(B) Unused storage capacity is less than a predetermined capacity (for example, 300 MB),
(C) The access frequency is lower than a predetermined frequency (for example, 50 times per minute),
(D) When at least one of the importance levels is lower than a predetermined standard (for example, “medium level importance”), a physical volume whose disk characteristics are low reliability or low performance is copied or moved Can be selected as the destination physical volume.

  In another embodiment, the server has a retention period setting means for setting an archive retention period represented by a period in the volume management storage area for a certain physical volume in which the digital archive is stored, and the certain physical volume. A first time length detecting means for detecting a first time length that is a time length from when the digital archive is stored in the volume to the present time, and a time length when the storage control system having the certain physical volume is stopped. A second time length detecting means for detecting a second time length; a third time length calculating means for calculating a third time length which is a difference between the first time length and the second time length; Comparing the third time length with the period represented by the archive retention period set for the certain physical volume to determine whether the third time length is equal to or greater than the period; Of If the result of judgment is affirmative, it may comprise further a deletion unit that deletes the digital archive in the certain physical volume. In this case, the retention period setting unit may set an archive retention period expressed in a format selected by the user among the period and the period in the volume management storage area. If the archive storage deadline is expressed in the form of a deadline, the erasure unit compares the current date and time with the deadline represented by the archive storage deadline, and determines whether the current date and time is after the deadline. And if the result of the determination is affirmative, the digital archive in the certain physical volume is deleted, while if the archive retention period is expressed in the form of a period, the third time The length and the period may be compared.

  In another embodiment, the server deletes a digital archive in the physical volume according to the selected data erasing method, and an erasing method selecting unit that selects a data erasing method from a plurality of types of data erasing methods. And may further be provided.

  In yet another embodiment, each of the plurality of storage control systems may manage volume attribute information for each of two or more physical volumes that it has. The volume management storage area may store volume attribute information for each of the plurality of physical volumes. The server controls at least one of the first storage control system having the first physical volume and the second storage control system having the second physical volume, and the digital archive in the first physical volume Archive generating means for generating the second physical volume, and volume attribute information transmitting means for transmitting volume attribute information corresponding to the first physical volume to the second storage control system. . The volume attribute information transmission unit may acquire the volume attribute information corresponding to the first physical volume from the volume management storage area, and may transmit the acquired volume attribute information. The volume attribute information may be transmitted by instructing the first storage control system to transmit from one storage control system to the second storage control system.

  In this embodiment, the archive generation means can move the digital archive in the first physical volume to the second physical volume. When the digital archive is moved from the first physical volume to the second physical volume, the server sets the first physical volume to the volume management storage area or the first storage control system. Attribute information erasure means for erasing the corresponding volume attribute information can be further provided. After erasing the volume attribute information (for example, volume state “read only”), new volume attribute information (for example, volume state “read and write enabled”) may be associated with the first physical volume. .

  A storage system according to a first aspect of the present invention includes a plurality of storage control systems including a disk-type storage device in which a digital archive is stored, an archive host that outputs the digital archive, and the plurality of storage control systems. And a server to be connected. The two or more disk-type storage devices included in the plurality of storage control systems are provided with a plurality of physical volumes that are storage areas for storing digital archives. In each of the storage control systems, one or more physical IDs respectively assigned to one or more physical volumes included in the storage control system among the plurality of physical volumes are managed. The archive host manages a plurality of logical IDs respectively assigned to the plurality of physical volumes. A volume management storage area in which the server stores, for each of the plurality of physical volumes, the logical ID, the physical ID, and a control system ID of a storage control system including the physical volume; and the plurality of logical IDs An extraction unit that extracts a physical ID and a control system ID corresponding to the received logical ID from the volume management storage area when the designation of the logical ID selected from the archive host is received from the archive host; Access path notifying means for notifying the archive host of access path information for accessing a physical volume having the physical ID, which is information based on the physical ID and the control system ID. The storage control system receives a write command or a read command based on the notified access path information from the archive host, and if the write command is received, the digital archive is specified from the access path information. First storage control means for storing in a physical volume having a physical ID, and when receiving the read command, the archive host reads out the digital archive from a physical volume having a physical ID specified from the access path information Second storage control means for transmitting to.

  Here, examples of the storage control system include a disk array device and a fiber channel switch. Examples of the archive host include computers such as personal computers and mainframes.

  In one embodiment of the storage system, the storage control system includes a host connection unit (for example, a LUN described later) connected to the archive host and one or more not logically connected to the host connection unit And a volume pool composed of physical volumes. The server is a storage control system in which the server specifies a connection instruction for logically connecting a physical volume corresponding to the extracted physical ID to the host connection unit from the acquired control system ID. And disconnecting the connection between the physical volume corresponding to the acquired physical ID and the host connection unit after the archive host accesses the physical volume corresponding to the extracted physical ID. A disconnection instructing means for outputting a disconnection instruction to the storage control system identified from the extracted control system ID. When the storage control system receives the connection instruction from the server, the storage control system selects a physical volume corresponding to the acquired physical ID from the volume pool, and logically selects the selected physical volume in the host connection unit. And a connection means for automatically connecting, and a disconnection means for disconnecting a logical connection between the physical volume corresponding to the acquired physical ID and the host connection unit when the disconnection instruction is received from the server. .

  Each of the means provided in at least one of the server according to the first aspect of the present invention and the storage system according to the second aspect of the present invention is, for example, hardware (for example, an apparatus, an electric circuit, or an electronic circuit), a computer program And combinations thereof. For example, the server according to another aspect of the present invention can be expressed as follows.

An archive host that outputs a digital archive; and a server that communicates with a plurality of storage control systems including a disk-type storage device in which the digital archive is stored,
The two or more disk-type storage devices of the plurality of storage control systems are provided with a plurality of physical volumes that are storage areas for storing digital archives,
In each of the storage control systems, one or more physical IDs respectively assigned to one or more physical volumes included in the storage control system among the plurality of physical volumes are managed,
The archive host manages a plurality of logical IDs respectively assigned to the plurality of physical volumes,
One or more computers;
For each of the plurality of physical volumes, a volume management storage area that stores the logical ID, the physical ID, and a control system ID of a storage control system including the physical volume;
A physical ID and a control system ID corresponding to the received logical ID when executed by any one of the one or more computers and receiving a designation of a logical ID selected from the plurality of logical IDs from the archive host A grasping program for grasping from the volume management storage area;
An access path that is executed by any one of the one or more computers and notifies the archive host of access path information for accessing a physical volume having the physical ID based on the grasped physical ID and control system ID. A notification program;
A server comprising

  The method according to the third aspect of the present invention includes a plurality of physical volumes that are data storage areas provided on two or more disk-type storage devices included in a plurality of storage control systems. One or more physical IDs respectively assigned to one or more physical volumes included in the storage control system among the plurality of physical volumes are managed, and an archive host that outputs a digital archive includes the plurality of physical volumes. A plurality of logical IDs respectively assigned are managed, the archive host transmitting a logical ID selected from the plurality of logical IDs to a server, and the server each of the plurality of physical volumes Storage control comprising the logical ID, the physical ID, and the physical volume Extracting a physical ID and a control system ID corresponding to a logical ID received from the archive host from a volume management storage area for storing a control system ID of the system, and the server extracting the physical ID and control A step of notifying the archive host of access path information for accessing a physical volume having the physical ID, which is information based on the system ID, and the archive host writing based on the notified access path information A step of transmitting a command or a read command to the storage control system; and when the storage control system receives the write command, a digital archive included in the write command has a physical ID specified from the access path information Physical volume And when the storage control system receives the read command, the storage control system reads a digital archive from a physical volume having a physical ID specified from the access path information and transmits the digital archive to the archive host. .

  According to the present invention, the convenience of storing a digital archive can be enhanced.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings.

  FIG. 1 is a block diagram showing the configuration of the archive management system according to the present embodiment.

  The digital archive managed by the archive management system according to the present embodiment is a content archive including, for example, one or a plurality of digital contents (for example, an e-mail or a data file). Specifically, for example, a content archive is a recording medium image representing a result of storing these data groups on a recording medium such as a DVD or a CD.

  In this embodiment, a content server 901, one or more content archive hosts 903, an archive management server 905, and one or more storage control systems 909 are connected to a first communication network (for example, the Internet or a LAN) 1. Has been. Further, one or a plurality of content archive hosts 903 and a plurality of storage control systems 909 constituting a storage control system pool 907 are connected to a second communication network (eg, SAN) 911.

  The content server 901 is a computer device provided with information processing resources such as a CPU (Central Processing Unit) and a memory, and is, for example, a personal computer, a workstation, a main frame, or the like. A storage resource (hereinafter, content box) 913 such as a memory or a hard disk of the content server 901 stores a plurality of digital contents. The content server 901 transmits the digital content in the content box 913 to the content archive host 903 via the first communication network 1.

  The content archive host 903 is a computer device provided with information processing resources such as a CPU and a memory, and is, for example, a personal computer, a workstation, a main frame, or the like. The content archive host 903 includes a host storage device (for example, hard disk) 915, a host memory 917, and a host control unit (for example, CPU) 919.

  The host storage device 915 includes a digital content storage area 921, one or more content archives 923, a logical VOL management table 927, and an archive attribute table 925. The digital content storage area 921 stores digital content received from the content server 901. The content archive 923 is a data archive including one or more digital contents in the digital content storage area 921. The logical VOL management table 927 and the archive attribute table 925 will be described later.

  The host memory 917 includes, for example, a storage area for a plurality of computer programs read by the host control unit 919 and a work area for the host control unit 919. For example, archive software 929 and archive encryption processing program 931 are stored in the storage area of the computer program. The archive software 929 is software that performs processing such as creating one content archive 923 based on one or more digital contents in the digital content storage area 921. The archive encryption processing program 931 is a computer program that encrypts the content archive 923 when the content archive 923 is transmitted to the storage control system 909.

  The host control unit 919 reads a computer program stored in the host memory 917 and performs information processing specific to the read computer program. For example, when the archive control software 929 is read, the host control unit 919 can perform processing such as creating one content archive 923 based on one or more digital contents in the digital content storage area 921. . Further, when the archive control program 931 is read, the host control unit 919 can perform processing for encrypting the content archive 923 to be transmitted to the storage control system 909.

  Each storage control system 909 is a system including one or more disk-type storage devices (or magnetic tape recording devices). Specifically, for example, each storage control system 909 is a RAID (Redundant Array of Independent Inexpensive Disks) system configured by arranging a large number of disk storage devices in an array. The storage control system 909 includes a plurality of disk type storage devices 933, a storage control memory 937, and a storage control device 939.

  Two or more physical volumes (hereinafter referred to as “physical VOL” as appropriate) 935 are provided on the plurality of disk-type storage devices 933. Each physical volume has a logical storage area based on a physical storage area on the disk-type storage device 933, and may also be referred to as an LU (Logical Unit) or an LDEV (Logical DEVice).

  In the storage control memory 937, for example, a physical VOL management table 941, a LUN management table 943, and control system attribute data 945 are stored. The physical VOL management table 941, LUN management table 943, and control system attribute data 945 will be described later.

  For example, the storage control device 939 is configured as a microcomputer system including a CPU, a memory, and the like, and interprets and executes various commands received from the content archive host (hereinafter referred to as archive host) 903 or the archive management server 905. . The memory in the storage control device 939 includes, for example, a storage area for a plurality of computer programs read by the CPU and a work area for the CPU.

  The archive management server 905 is a computer device provided with information processing resources such as a CPU and a memory, for example, and is configured as a personal computer, a workstation, a mainframe, or the like, for example. The archive management server 905 includes, for example, an information input device (not shown) such as a keyboard switch, a pointing device, and a microphone, and an information output device (not shown) such as a monitor display and a speaker. The archive management server 905 controls that the content archive host 903 puts and removes the content archive 923 with respect to the physical VOL on the storage control system pool 907, and the physical VOL described later possessed by the physical VOL on the storage control system pool 907. -Managing the correspondence between IDs and logical VOL-IDs. The archive management server 905 includes a server storage device (for example, a hard disk) 947, a server memory 949, and a server control unit (for example, CPU) 951.

  The server storage device 947 stores a logical-physical VOL management table 953, a LUN management table 955, a replication management table 957, and a physical VOL attribute management table 959 (detailed description of these tables will be given later). The server storage device 947 may store one or a plurality of control system attribute data respectively corresponding to one or a plurality of storage control systems 909 included in the storage control system pool 907. When the archive management server 905 issues a connection disconnection instruction, which will be described later, to each storage control system, the archive management server 905 can issue an instruction based on control system attribute data (for example, a case ID) corresponding to the storage control system.

  The server memory 949 includes, for example, a storage area for a plurality of computer programs read by the server control unit 951 and a work area for the server control unit 951. In the storage area of the computer program, for example, a read / write control program 961, a storage expiration management program 963, a replication management program 965, and a migration management program 967 are stored. The read / write control program 961 is a computer program for controlling the exchange of content archives exchanged between the archive host 903 and the storage control system 909. The retention period management program 963 is a computer program for managing a content archive retention period (hereinafter simply referred to as “retention period”) for each physical VOL set in the logical-physical VOL management table 953. The replication management program 965 is a computer program for performing processing such as generating a copy of a digital archive in a physical VOL existing in a storage control system 909 in another physical VOL. The migration management program 967 is a computer program for performing processing such as moving a digital archive in a certain physical VOL existing in a certain storage control system 909 to another physical VOL.

  The server control unit 951 reads a computer program stored in the server memory 949 and performs information processing unique to the read computer program. For example, when the read / write control program 961 is read, the server control unit 951 can control the exchange of content archives exchanged between the archive host 903 and the storage control system 909. Further, for example, when the storage period management program 963 is read, the server control unit 951 can manage the storage period for each physical VOL set in the logical-physical VOL management table 953. Further, for example, when the replication control program 965 is read, the server control unit 951 generates a copy of a digital archive in a certain physical VOL existing in a certain storage control system 909 in another physical VOL. Etc. can be performed. Further, for example, when the server control unit 951 reads the migration management program 967, the server control unit 951 moves a digital archive in a certain physical VOL existing in a certain storage control system 909 to another physical VOL. Processing can be performed.

  The above is the outline of the archive management system according to the present embodiment.

  In this embodiment, one or more storage control systems are managed as one storage control system pool 907. In this embodiment, as will be described later, the archive host 903 stores the digital archive in the physical VOL without knowing what storage control system exists in the storage control system pool 907. can do.

  FIG. 2 shows a configuration example of the logical VOL management table 925 and the archive attribute table 927 stored in the host storage device 915 of the archive host 903.

  As shown in FIG. 2A, a plurality of archive names respectively corresponding to a plurality of logical VOL-IDs are registered in the logical VOL management table 925.

  Here, the logical VOL-ID is an ID assigned to each of a plurality of physical VOLs 935 existing in the storage control system pool 907 and is recognized by the archive host 903. The logical VOL-ID may be a set of a physical VOL-ID and a housing ID, which will be described later, or may be an ID prepared separately from these IDs. There is no duplicate logical VOL-ID in the storage control system pool 907. The archive host 903 (for example, the archive software 929 read by the host control unit 919) selects a desired logical VOL-ID from a plurality of logical VOL-IDs written in the logical VOL management table 925. A desired content archive 923 can be stored in the storage control system pool 907 as long as it is designated to the archive management server 905. In other words, it is not necessary for the archive host 903 to grasp the physical configuration such as what kind of storage control system exists in the storage control system pool 907.

  The archive name associated with the logical VOL-ID is the name of the digital archive existing in the physical VOL 935 to which the logical VOL-ID is assigned (not limited to the name, but may be other identification information). In the logical VOL management table 925, when there is no archive name corresponding to the logical VOL-ID and the column is blank, the content generated by the archive host 903 is stored in the physical VOL 935 corresponding to the logical VOL-ID. It means that the archive 923 does not exist and is empty.

  As shown in FIG. 2B, a plurality of archive attributes corresponding to a plurality of archive names are registered in the archive attribute table 927, respectively. The archive attribute of the content archive 923 is an attribute related to the content archive 923, for example, the storage period of the content archive 923.

  FIG. 3 shows a configuration example of the physical VOL management table 941, LUN management table 943, and control system attribute 945 stored in the storage control memory 937 of the storage control system 909.

  As shown in FIG. 3A, the physical VOL management table 941 of each storage control system 909 includes two or more storage control system physical units respectively corresponding to two or more physical VOLs existing in the storage control system 909. VOL information is registered. The physical VOL information for storage control system of each physical VOL 935 is attribute information regarding the physical VOL, and includes, for example, a physical VOL-ID, a state, and a storage capacity.

  Here, the physical VOL-ID is identification information of the physical VOL 935 and needs to be recognized in the storage control system 909 including the physical VOL 935, but may not be recognized in the archive host 903 (separately In other words, it may be hidden from the archive host 903). That is, the physical VOL-ID and the above-described logical VOL-ID are common in terms of the ID assigned to the physical VOL 935, but differ in whether they need to be recognized in the archive host 903 or not. To do.

  The physical VOL 935 has a plurality of states, for example, “RO (Read Only)” that prohibits writing but permits reading, “RW (Read Write)” that permits both writing and reading, and the physical VOL 935. “Free” means that is empty.

  As shown in FIG. 3B, the LUN management table 943 of each storage control system 909 has one or more pieces of LUN information respectively corresponding to one or more LUNs (Logical Unit Nimbers) existing in the storage control system 909. Is recorded. In the LUN information of each LUN, for example, the port ID (the ID of the communication port to which the archive host 903 is connected), the target ID, the LUN itself, and the storage provided when the LUN is specified. A capacity and a physical VOL-ID (physical VOL-ID group) of one or more physical VOLs connectable to the LUN are included.

  As shown in FIG. 3C, the control system attribute data 945 of each storage control system 909 includes, for example, a case ID (in other words, an ID of the storage control system 909) as an attribute related to the storage control system 909. It is included. The case ID may be any information as long as it can identify the storage control system 909. For example, address information (for example, IP address, MAC address, or WWN (World Wide Name)) is adopted. can do.

  FIG. 4 shows a configuration example of the logical-physical VOL management table 953 and the LUN management table 955 among a plurality of tables stored in the server storage device 947 of the archive management server 905.

  As shown in FIG. 4A, in the logical-physical VOL management table 953, server physical VOL information respectively corresponding to a plurality of logical VOL-IDs is recorded. The server physical VOL information of each logical VOL-ID is attribute information related to the physical VOL 935 to which the logical VOL-ID is assigned. For example, the chassis ID, physical VOL-ID, state, storage period, total storage capacity / Includes unused capacity, expiration action, access frequency, and importance.

  The chassis ID corresponding to the logical VOL-ID is the ID of the storage control system 909 including the physical VOL 935 to which the logical VOL-ID is assigned. The housing ID can be registered in advance.

  The physical VOL-ID corresponding to the logical VOL-ID is the physical VOL-ID of the physical VOL 935 to which the logical VOL-ID is assigned. The physical VOL-ID can be updated as appropriate when an event such as replacement of an old disk type storage device 933 with a new disk type storage device 933 occurs.

  The state corresponding to the logical VOL-ID is the state of the physical VOL 935 (for example, RO, RW, or Free) to which the logical VOL-ID is assigned. The state can be appropriately updated by, for example, the read / write control unit 961 read by the server control unit 951.

  The storage period corresponding to the logical VOL-ID is the storage period of the content archive 923 in the physical VOL 935 to which the logical VOL-ID is assigned. Various methods can be used to represent the storage period. For example, the storage deadline may be represented by the number of days, or may be represented by a date.

  The total storage capacity / unused capacity corresponding to the logical VOL-ID represents the storage capacity of the physical VOL 935 to which the logical VOL-ID is assigned and the unused storage capacity of the storage capacity. The total storage capacity / unused capacity can be appropriately updated by the read / write control unit 961 read by the server control unit 951, for example.

  The expiration action corresponding to the logical VOL-ID represents what kind of processing is performed when the storage period corresponding to the physical VOL 935 to which the logical VOL-ID is assigned expires. Expiration actions include, for example, data deletion (deleting the content archive in the corresponding physical VOL 935) and alert issuance (notifying the user of expiration of the storage period by various methods such as e-mail). . When the expiration action is data erasure, for example, the read / write control unit 961 read by the server control unit 951 erases the content archive in the physical VOL 935 whose storage period has expired (the status of the physical VOL 935 is changed to “ It may be set to “Free” or “RW”). Further, for example, when the expiration action is an alert issuance, the read / write control unit 961 read by the server control unit 951 outputs the content to the archive host 903 that has output the content archive 923 in the physical VOL 935 whose expiration date has expired. An e-mail in which it is written that the storage period of the archive 923 has expired (hereinafter, a storage period expiration notification mail) is transmitted. In this case, the e-mail address of the archive host 903 is registered in the server memory 949 or the server storage device 974, and a storage period expiration notification e-mail is transmitted based on the e-mail address.

  The access frequency corresponding to the logical VOL-ID is the access frequency by the archive host 903 to the physical VOL 935 to which the logical VOL-ID is assigned. The access frequency represents, for example, how many times access is made per predetermined time (for example, one day). The access frequency can be updated each time data is written to or read from the physical VOL 935 by the read / write control unit 961 read by the server control unit 951, for example.

  The importance corresponding to the logical VOL-ID represents the importance of the content archive 923 in the physical VOL 935 to which the logical VOL-ID is assigned. The importance can be expressed by a plurality of levels (for example, three levels of high, medium, and low).

  As shown in FIG. 4B, the LUN management table 957 records a plurality of LUN information respectively corresponding to a plurality of LUNs (Logical Unit Nimbers) existing in the storage control system pool 907. The LUN information for each LUN includes, for example, the chassis ID of the storage control system 909 having the LUN, the port ID and target ID corresponding to the LUN, the LUN itself, and one or more that can be connected to the LUN. And a physical VOL-ID (physical VOL-ID group) of the physical VOL.

Hereinafter, with respect to the present embodiment, the following processes (1) to (3):
(1) Processing performed in the case of writing (or reading) of the digital archive 923,
(2) Processing performed in replication management,
(3) Processing performed in migration management,
Will be described.

  (1) Processing performed when the digital archive 923 is written (or read).

  Hereinafter, a processing flow performed when the content archive 923 is stored in the physical VOL will be described with reference to FIGS. 5 and 6.

  As shown in FIG. 5, the archive host 903 (for example, the host control unit 919 that has read the archive software 929) creates one content archive 923 based on one or more digital contents in the digital content storage area 921. (Step S1), and the created content archive 923 is stored in the host storage device 915.

  The archive host 903 refers to the logical VOL management table 927 in the host storage device 915, and selects a desired logical VOL-ID from one or more logical VOL-IDs respectively corresponding to one or more free physical VOLs 935. Then, the selected VOL-ID is designated to the archive management server 905 (S2).

  The archive management server 905 (for example, the server control unit 951 that has read the read / write control program 961) manages the logical-physical VOL in the server storage device 947 using the logical VOL-ID specified from the archive host 903 as a search key. Whether the content archive 923 can be written to the physical VOL 935 corresponding to the logical VOL-ID with reference to the table 953 (for example, whether the state of the physical VOL 935 is at least one of “RW” and “Free”) Or not).

  As a result of the determination, if the data can be written, the archive management server 905 acquires a physical VOL-ID and a case ID corresponding to the designated logical VOL-ID from the logical-physical VOL management table 953 (S3).

  Next, the archive management server 905 acquires the LUN having the acquired chassis ID and physical VOL-ID from the LUN management table 957 (S4).

  Next, the archive management server 905 sends the acquired LUN and the like and the physical VOL-ID to the first storage control system 909 having the acquired chassis ID via the first communication network (for example, LAN) 1. Based on this, an instruction to form a logical path (hereinafter, a logical path formation instruction) is issued (S5).

  In the first storage control system 909 (for example, the storage controller 939) that has received a logical path formation instruction from the archive management server 905, a logical path is formed between the LUN and the physical VOL before receiving the logical path formation instruction. It has not been.

  In response to the received logical path formation instruction, the first storage control system 909 converts the physical VOL 935 having the physical VOL-ID included in the logical path formation instruction to a plurality of physical VOLs 935 not connected to the LUN. Is selected from the physical VOL pool 936 consisting of (S6). Then, the first storage control system 909 forms a logical path 938 between the selected physical VOL 935 and the LUN included in the logical path formation instruction (S7). Specifically, for example, the first storage control system 909 associates the physical VOL-ID of the selected physical VOL 935 with the LUN included in the logical path formation instruction on the physical VOL management table 937.

  Based on the acquired physical VOL-ID and chassis ID, the archive management server 905 accesses access path information (for example, chassis ID, port ID, and the like) for accessing the physical VOL 935 corresponding to the physical VOL-ID. (Information including target ID, LUN, and physical VOL-ID) 5001 is notified to the archive host 903 (S8).

  Based on the notified access path information 5001, the archive host 903 generates a write command (for example, a write command according to the SCSI protocol) including the content archive 923 in the host storage device 915, and the generated write command is the first command. Is sent to the storage control system 909 (S9).

  The first storage control system 909 writes the content archive 923 in the received write command to the physical VOL 935 according to the formed logical path 938 (that is, the physical VOL 935 corresponding to the logical VOL-ID specified by the archive host 903). (S10). When the writing is completed, the first storage control system 909 notifies the archive host 903 of the completion of writing (S11).

  When the archive host 903 receives a write end notification from the first storage control system 909, as shown in FIG. 6, the archive host 903 obtains the retention period corresponding to the archive name of the transmitted content archive 923 from the archive attribute table 925, The acquired retention period is notified to the archive management server 905 together with the logical VOL-ID specified in S2 (S12).

  The archive management server 905 sets the notified retention period and the write-inhibited state (for example, state “RO”) in the location on the logical-physical VOL management table 953 corresponding to the notified logical VOL-ID. (S13). In addition, the archive management server 905 issues an instruction (hereinafter referred to as “state change instruction”) for prohibiting writing to the state of the physical VOL-ID corresponding to the logical VOL-ID to the first storage control system 909 (S13A). ).

  The first storage control system 909 sets a write-inhibited state (for example, state “RO”) at a location on the physical VOL management table 941 corresponding to the physical VOL-ID included in the state change instruction ( S14). Thereby, for example, the microprogram of the storage control device 939 of the first storage control system 909 is controlled so as not to write data to the physical VOL 935 in the write-inhibited state.

  The archive host 903 issues an instruction to disconnect the connection between the archive host 903 and the first storage control system 909 (hereinafter referred to as disconnection instruction) to the archive management host 905 (S15).

  In response to the disconnection instruction from the archive host 903, the archive management host 905 issues an instruction to disconnect the formed logical path 938 (hereinafter, connection disconnection instruction) to the first storage control system 909 (S16). .

  In response to the disconnection instruction from the archive management host 905, the first storage control system 909 disconnects the formed logical path 938 (in other words, releases the logical path 938) (S17).

  Through the above processing flow, the content archive 923 generated by the archive host 903 is stored in the physical VOL 935 in the storage control system 909.

  Note that the flow of processing performed when the content archive 923 is read out is not particularly illustrated, but those skilled in the art can understand the flow of processing when reading out with reference to the above description and FIGS. 5 and 6. can do. That is, in short, the archive host 903 determines the logical VOL-ID of the physical VOL 935 in which the content archive 923 to be read is hidden from the logical VOL management table 927, and determines the determined logical VOL-ID from the archive management server. If specified in 905, a logical path is formed in the storage control system 909 through S3 to S7, and if the archive host 903 issues a read command based on the logical path, then it is specified in the read command. A content archive 923 is provided to the archive host 903.

  In the present embodiment, the correspondence relationship between the logical VOL-ID and the physical VOL-ID is updated as appropriate.

  FIG. 7 shows an example of a processing flow performed when the correspondence relationship between the logical VOL-ID and the physical VOL-ID is updated.

  When the physical VOL is increased or decreased in the storage control system 909, or when the existing physical VOL-ID is changed to another ID (for example, when the disk type storage device 933 is added or replaced) ( In S21, the updated physical VOL-ID is registered in the storage control memory 937 of the storage control system 909 (for example, the physical VOL-ID is added or deleted in the storage control memory 937). (Or changed) (S22). The storage control system 909 notifies the archive management server 905 of the physical VOL update information related to the updated physical VOL-ID (for example, the added, deleted, or changed physical VOL-ID).

  The archive management server 905 determines the logical VOL-ID and physical in the logical-physical VOL management table 953 based on the notified physical VOL update information and the chassis ID corresponding to the storage control system 909 that transmitted the information. The association with the VOL-ID is updated (S23). Specifically, for example, when the archive management server 905 receives the added physical VOL-ID, it prepares a new logical VOL-ID corresponding to the physical VOL-ID, and the logical VOL-ID and physical The VOL-ID is associated and recorded in the logical-physical VOL management table 953. For example, when the archive management server 905 receives the erased physical VOL-ID, the archive management server 905 erases the record (that is, the logical VOL-ID, etc.) corresponding to the physical VOL-ID from the logical-physical VOL management table 953. To do. For example, when receiving the physical VOL-ID before and after the change, the archive management server 905 changes the logical VOL-ID corresponding to the physical VOL-ID before the change to another ID.

  The archive management server 905 notifies the archive host 903 of logical VOL-ID update information related to the updated logical VOL-ID (for example, the added, deleted, or changed logical VOL-ID) (S24). .

  The archive host 903 updates the contents of the logical VOL management table 927 based on the received logical VOL-ID update information (S25).

  (2) Processing performed in replication management.

  Next, processing performed in replication management will be described.

  FIG. 8 shows an example of a concept related to replication management in this embodiment.

  In the archive management system according to the present embodiment, the replication management program 965 read by the server control unit 951 of the archive management server 905 is stored in the logical-physical VOL management table 953 and the replication management table 957 in the server storage device 947. Based on this, the replication relationship such as which physical VOL 935 of which storage control system 909 the content archive 923 existing in which physical VOL 935 in which storage control system 909 is replicated is managed.

  According to the example of FIG. 8, a copy of the content archive 923 existing in the physical VOL 935A in the first storage control system 909 exists in a copy VOL (physical VOL) 935B of the second storage control system 909, It is managed that the copy of the content archive 923 existing in the physical VOL 935C in the first storage control system 909 exists in the copy VOL 935D of the second storage control system 909 and the copy VOL 935D of the third storage control system 909, etc. Has been.

  FIG. 9 shows the configuration of the logical-physical VOL management table 953 and the replication management table 957 when the replication relationship shown in FIG. 8 exists.

  As shown in FIG. 9, the replication management table 957 is prepared for each physical VOL-ID (or logical VOL-ID) registered in the logical-physical VOL management table 953, for example, and to which physical VOL-ID. Which replication management table 957 corresponds is indicated by pointers 100A to 100C. Each replication management table 957 records the housing ID of the storage control system in which the duplicate VOL exists, the physical VOL-ID of the duplicate VOL, and the replication status. For example, the replication status is “complete” if a copy of the content archive 923 exists, and “uncopied” if the copy does not exist.

  From the configuration of the logical-physical VOL management table 953 and the replication management table 957 illustrated in FIG. 9, the replication management program 957 read by the server control unit 951 can grasp the following.

  That is, in the replication management program 957, the physical VOL-ID “0001” corresponding to the logical VOL-ID “1” and the chassis ID “1001” is associated with the replication management program 957A via the pointer 100A. I can understand that. The replication status registered in the replication management program 957A indicates “completed”. For these reasons, the replication management program 957 makes a copy of the content archive 923 existing in the physical VOL 935A (physical VOL-ID “0001”) in the first storage control system 909 (housing ID “1001”) It can be grasped that it exists in the duplicate VOL 935B (physical VOL-ID “0001”) of the second storage control system 909 (housing ID “1003”).

  In the replication management program 957, the physical VOL-ID “0002” corresponding to the logical VOL-ID “2” and the chassis ID “1001” is associated with the replication management program 957B via the pointer 100B. I can understand that. The replication status registered in the replication management program 957B indicates “completed”. For these reasons, the replication management program 957 makes a copy of the content archive 923 existing in the physical VOL 935C (physical VOL-ID “0002”) in the first storage control system 909 a copy of the second storage control system 909. It can be understood that the VOL 935D (physical VOL-ID “0002”) and the duplicate VOL 935D (physical VOL-ID “0001”) of the third storage control system 909 (housing ID “1004”) exist. .

  Further, in the replication management program 957, the physical VOL-ID “0001” corresponding to the logical VOL-ID “3” and the chassis ID “1001” is associated with the replication management program 957C via the pointer 100C. I can understand that. The replication status registered in the replication management program 957C indicates “not copied”. For these reasons, the replication management program 957 copies the content archive 923 existing in the physical VOL 935E (physical VOL-ID “0003”) in the first storage control system 909 to the copy of the third storage control system 909. It can be understood that the VOL 935F (physical VOL-ID “0002”) does not exist.

  Hereinafter, referring to FIG. 10, a case where a copy of the content archive 923 existing in the physical VOL 935A of the first storage control system 909 is generated in the copy VOL 935B of the second storage control system 909 is taken as an example. The flow of the replication process at 923 will be described.

  When performing the replication process, the archive management server 905 (for example, the replication management program 965) refers to the logical-physical VOL management table 953 and searches for one or more free physical VOLs (for example, a physical VOL whose state is “Free”). One or more free physical VOLs (here, physical VOL 935B) are selected from the found one or more free physical VOLs (in other words, copy destination physical VOL candidates). It should be noted that various criteria can be adopted as criteria for selecting an empty VOL. For example, the free physical VOL found first can be selected, or can be selected based on the same criteria as in the migration process described later.

  When the archive management server 905 selects the free physical VOL 935B, the archive management server 905 prepares a new replication management table 957A in which information (physical VOL-ID, case ID, etc.) related to the free physical VOL 935 is written in the server storage device 947. Then, the archive management server 905 generates a pointer 100A indicating the association between the replication management table 957A and the physical VOL-ID of the physical VOL 935A, and registers the information of the pointer 100A in the server storage device 947 (S31). .

  Next, the archive management server 905 performs a logical path between the replication source physical VOL 935A and the LUN by performing, for example, the same processing as S5 described above based on the physical VOL-ID and the chassis ID of the replication source physical VOL 935A. A first logical path formation instruction for forming the data is issued to the first storage control system 909 (S32).

  Similarly, the archive management server 905 performs a logical path between the replication destination physical VOL 935B and the LUN by performing, for example, the same processing as S5 described above based on the physical VOL-ID and the chassis ID of the replication destination physical VOL 935B. A second logical path formation instruction for forming the second storage path is issued to the second storage control system 909 (S33).

  Based on the first logical path formation instruction, the first storage control system 909 performs, for example, the same processing as the processing of S6 to S7 described above, thereby duplicating the source physical VOL 935A in the first storage control system 909. And a logical path 938A is formed between the LUN and LUN (S34).

  Similarly, the second storage control system 909 also performs replication in the second storage control system 909 by performing, for example, processing similar to the processing of S6 to S7 described above based on the second logical path formation instruction. A logical path 938B is formed between the destination physical VOL 935B and the LUN (S35).

  As a result of the processing of S31 to S35, a volume pair of the replication source physical VOL 935A and the replication destination physical VOL 935B is formed (S36).

  The archive management server 905 notifies the first storage control system 909 of the contents (eg, port ID, target ID, and LUN) of the logical path 938B related to the copy destination physical VOL 935B, and copies the content archive 923 in the copy source physical VOL 935A. Is instructed to be generated in the copy destination physical VOL 935B (S37). As a result, a copy 923R of the content archive 923 in the copy source physical VOL 935A is generated in the copy destination physical VOL 935B. Specifically, for example, the first storage control system 909 generates a copy 923R of the content archive 923 in the copy source physical VOL 935A, and the copy 923R is based on the notified contents of the logical path 938B. The data is transferred to the copy destination physical VOL 935B in the second storage control system 909. The second storage control system 909 stores the transferred content archive copy 923R in the copy destination physical VOL 935B according to the logical path 938B (S38).

  When the content archive copy 923R is written in the copy destination physical VOL 935B, the archive management server 905 updates the replication status of the newly prepared replication management table 957A from “not copied” to “completed” (S39).

  Thereafter, the archive management server 905 issues an instruction to disconnect the formed logical path to the first and second storage control systems 909 (that is, the connection disconnection instruction described above) (S40). The first storage control system 909 disconnects the connection disconnection instruction, disconnects the formed logical path 938A (S41), and similarly, the second storage control system 909 that receives the disconnection instruction instructs the formed logical path 938A. The path 938B is cut (S42).

  After this series of processing, if the content archive 923 in the copy source physical VOL 935A is damaged, the archive management server 905 determines in which physical VOL of which storage control system the copy 923R of the content archive 923 exists. Is determined based on the logical-physical VOL management table 953, the pointer 100A, and the replication management table 957A, and the content archive 923 is recovered by acquiring the content archive replica 923R from the determined physical VOL 935B. be able to.

  (3) Processing performed in migration management.

  Next, processing performed in migration management will be described.

  FIG. 11 shows an example of a concept related to migration management according to the present embodiment.

  In the archive management system according to the present embodiment, the migration management program 967 read by the server control unit 951 of the archive management server 905 executes the logical-physical VOL management table 953 and the physical VOL attribute management table 959 in the server storage device 947. Based on the above, the migration relationship such as which physical VOL 935 of which storage control system 909 the content archive 923 existing in which physical VOL 935 in which storage control system 909 is moved is managed.

  According to the example of FIG. 11, it is managed that the content archive 923 existing in the physical VOL 935G in the first storage control system 909 has been moved to the post-migration VOL (physical VOL) 935H of the second storage control system 909. ing.

  FIG. 12 shows a configuration example of the logical-physical VOL management table 953 and the physical VOL attribute management table 959 when the migration relationship shown in FIG. 11 exists.

  As shown in FIG. 12, in the physical VOL attribute management table 959, for each physical VOL existing in the storage control system pool 907, as attribute information corresponding to the physical VOL, for example, a chassis ID, a physical VOL- ID and disc characteristics are recorded. The disk characteristics represent one or more characteristics of the disk-type storage device 933 in which the physical VOL 935 exists. For example, there are two types of “high reliability / high performance” and “low reliability / low performance”. is there. “High reliability” means, for example, that the average time length until failure (MTBF (Mean Time Between Failure)) is long, whereas “low reliability” means that MTBF is highly reliable. Means shorter than that. On the other hand, “high performance” means, for example, that the data writing speed is fast, whereas “low performance” means that the data writing speed is slower than that of high performance.

  Each physical VOL-ID registered in the physical VOL attribute management table 959 is associated with one of a plurality of logical VOL-IDs (or physical VOL-IDs) registered in the logical-physical VOL management table 953. The pointers 101A to 101C indicate which physical VOL-ID is associated with which physical VOL-ID.

  Based on the configurations of the logical-physical VOL management table 953 and the physical VOL attribute management table 959 illustrated in FIG. 12, the migration management program 959 read into the server control unit 951 can perform the following management. .

  For example, as shown in FIG. 12A, the migration management program 959 has the logical VOL-ID “1” on the logical-physical VOL management table 953 on the physical VOL attribute management table 959 via the pointer 101A. It can be ascertained that it is associated with the physical VOL-ID “0001” corresponding to the chassis ID “1001”.

  In this case, for example, the migration management program 959 converts the content archive 923 in the physical VOL 935 having the logical VOL-ID “1” into the physical VOL 935 having the physical VOL-ID “0002” corresponding to the chassis ID “1002”. When moving to, the following processing is performed.

  That is, as shown in FIG. 12B, the migration management program 959 erases the pointer 101A. Then, the migration management program 959 executes the physical VOL-ID “0002” corresponding to the logical VOL-ID “2” on the logical-physical VOL management table 953 and the chassis ID “1002” on the physical VOL attribute management table 959. Is created, and the new pointer 101D is registered in the server storage device 947. Also, the migration management program 959 uses the new pointer 101D to associate the chassis ID and the physical VOL-ID value corresponding to the logical VOL-ID “2” on the logical-physical VOL management table 953. Update to ID “1002” and physical VOL-ID “0002”, respectively.

  The migration management program 959 changes the configuration of the logical-physical VOL management table 953 and the physical VOL attribute management table 959 as shown in FIG. 12A to FIG. 12B, thereby changing the logical VOL-ID “1”. The content archive 923 that was in the physical VOL that has the physical ID corresponds to the chassis ID “1002” from the highly reliable and high-performance physical VOL that has the physical VOL-ID “0001” corresponding to the chassis ID “1001”. It can be grasped that the user has moved into the low-reliability / low-performance physical VOL having the physical VOL-ID “0002”.

  FIG. 13 shows the flow of the migration process for the content archive 923.

  When a predetermined event occurs (Y in S51), the archive management server 905 (for example, the migration management program 965) performs the processing after S52 described later. Here, the case where a predetermined event occurs is, for example, a case where a predetermined date and time has come, or a case where the disk-type storage device 933 has been replaced or added. The process of S51 can be performed regularly or irregularly.

  The archive management server 905 refers to the logical-physical VOL management table 953 and checks whether the migration target physical VOL exists in the storage control system pool 907 (S52). If there is a physical VOL to be migrated (Y in S53), the archive management server 905 executes the processing after S54. Here, the physical VOL that becomes the movement target physical VOL is, for example, a storage expiration date that expires after a predetermined time (for example, after 3 days), an unused capacity that is less than a predetermined capacity (for example, 300 MB), or There are many, access frequency lower than or higher than a predetermined frequency (for example, 50 times per minute), or higher importance or lower than a predetermined standard (for example, “medium” importance). It is done. Whether the retention period is near or far can be grasped by the retention period management program 963 read by the server primary control unit 951.

  When there is a migration target physical VOL, the archive management server 905 determines one or more free physical VOLs having desired disk characteristics based on the attributes of the migration target physical VOL (for example, a physical VOL whose state is “Free”). And one or more free physical VOLs are selected from the found one or more free physical VOLs (in other words, destination physical VOL candidates). Here, “desired disk characteristics” possessed by the migration destination physical VOL candidate are, for example, that the attribute of the migration target physical VOL has a storage period longer than a predetermined time (for example, 180 days), and the unused capacity is a predetermined capacity. (E.g., 20 GB), access frequency is higher than a predetermined frequency (e.g., 50 times per minute), or importance is higher than a predetermined standard (e.g., importance "medium") The disk characteristics can be “high reliability and high performance”. On the other hand, for example, the attribute of the migration target physical VOL has a storage period shorter than a predetermined time (for example, 3 days), an unused capacity less than a predetermined capacity (for example, 300 MB), and an access frequency of a predetermined frequency (for example, 1). If the importance level is lower than a predetermined standard (for example, importance level “medium”), the above-mentioned “desired disk characteristics” is “low reliability / Low performance ".

  When one or more free physical VOLs are selected, the archive management server 905 selects information on the free physical VOL (physical VOL-ID and chassis ID on the physical VOL attribute table 959) and the logical-physical VOL management table 953. A new pointer for associating with the logical VOL-ID is generated, and the new pointer is registered in the server storage device 947 (S54).

  Next, the archive management server 905 forms a logical path between the migration source physical VOL 935G and the LUN by performing, for example, the same processing as S5 described above based on the logical VOL-ID of the migration source physical VOL. The first logical path formation instruction is issued to the first storage control system 909 (S55).

  Similarly, the archive management server 905 performs, for example, the same processing as in S5 described above based on the physical VOL-ID and the case ID of the movement destination physical VOL 935H (that is, the selected free physical VOL), thereby moving the movement destination. A second logical path formation instruction for forming a logical path between the physical VOL 935H and the LUN is issued to the second storage control system 909 (S56).

  Based on the first logical path formation instruction, the first storage control system 909 performs, for example, the same processing as the processing in S6 to S7 described above, thereby moving the source physical VOL 935G in the first storage control system 909. And a logical path 938G is formed between the LUN and LUN (S57).

  Similarly, the second storage control system 909 also moves within the second storage control system 909, for example, by performing the same processing as the processing of S6 to S7 described above based on the second logical path formation instruction. A logical path 938G is formed between the previous physical VOL 935H and the LUN (S58).

  The archive management server 905 notifies the first storage control system 909 of the contents (eg, port ID, target ID, and LUN) of the logical path 938H related to the migration destination physical VOL 935H, and migrates the content archive 923 in the migration source physical VOL 935G. The first and second storage control systems 909 are instructed to move into the destination physical VOL 935H (S59). As a result, the content archive 923 in the migration source physical VOL 935G is migrated to the migration destination physical VOL 935H (S60). Specifically, for example, the first storage control system 909 reads the content archive 923 in the migration source physical VOL 935G, and stores the content archive 923 in the second storage based on the notified contents of the logical path 938H. The data is transferred to the destination physical VOL 935H in the control system 909. The second storage control system 909 stores the transferred content archive 923 in the migration destination physical VOL 935B according to the logical path 938H. As a result, the content archive 923 that existed before the migration disappears from the migration source physical VOL 935G.

  When the content archive 923 is written in the migration destination physical VOL 935H, the archive management server 905 updates a predetermined information item corresponding to the migration source logical VOL-ID on the logical-physical VOL management table 953 (S61). For example, the archive management server 905 changes the chassis ID and physical VOL-ID corresponding to the migration source logical VOL-ID to the chassis ID and physical VOL-ID corresponding to the migration destination physical VOL 935H. Further, for example, the archive management server 905 changes the state (for example, “RW” or “RO”) corresponding to the migration source physical VOL 935G to another state (for example, “Free” or “RW”). Thereafter, the archive management server 905 issues an instruction to disconnect the formed logical path to the first and second storage control systems 909 (that is, the connection disconnection instruction described above) (S62). In response to the disconnection instruction, the first storage control system 909 disconnects the formed logical path 938G (S63), and similarly, the second storage control system 909 that has received the disconnection instruction instructs the formed logical path 938G. The path 938H is disconnected (S64).

  In this processing, the archive management server 905 may notify the archive host 903 of the migration source logical VOL-ID that has become free after S61, for example. In this case, the archive host 903 deletes information on the logical VOL management table 927 corresponding to the notified logical VOL-ID.

  For example, the archive management server 905 archives the logical VOL-ID corresponding to the physical VOL-ID and the chassis ID of the migration destination physical VOL 935H and the attribute (for example, archive name) of the content archive moved to the physical VOL 935H. The host 903 may be notified. In that case, the archive host 903 changes the archive name on the logical VOL management table 927 corresponding to the notified logical VOL-ID to the notified archive name.

  In this embodiment, the archive management server 905 displays an operation GUI (Graphical User Interface) as described below and, based on an instruction received from the administrator via the operation GUI, in the storage control system pool 907. Each storage control system 909 can be controlled.

  FIG. 14 shows a configuration example of the operation GUI displayed by the archive management server 905.

  As shown in FIG. 14A, the archive management server 905 displays an operation GUI 801. The operation GUI 801 is provided with a connection source archive host list 809, an archive VOL list display button 805, an archive VOL list display area 807, and a sort menu 803.

  The archive VOL list display button 805 is a tool for instructing to display an archive VOL list.

  In the connection source archive host list 809, one or a plurality of archive host selection buttons 810 respectively corresponding to one or a plurality of archive hosts 903 provided in the archive management system according to the present embodiment are displayed. Each archive host selection button 810 displays identification information (for example, archive host name) of the archive host 903 corresponding to the button 810.

  In the archive VOL list display area 807, a list of information related to the archive VOL (in other words, the physical VOL that can store the content archive 923), for example, the contents of the logical-physical VOL management table 953 is displayed.

  The sort menu 803 displays one or more criteria for sorting the archive VOL list (for example, the logical-physical VOL management table 953). Examples of the one or more standards include a state (for example, “RW”, “RO”, or “Free”), a storage expiration date, an unused capacity, and the like.

  Hereinafter, the screen transition of the operation GUI 801 will be described.

  When the archive VOL list display button 805 is operated using an input device such as a mouse, the archive management server 905 displays the archive VOL list (for example, the logical-physical VOL management table 953) in the archive VOL list display area 807. To display.

  Further, when at least one archive host selection button 901 is selected from one or a plurality of archive host selection buttons 901, the archive management server 905 displays the display content of the operation GUI 801 as the display content as shown in FIG. Switch to.

  For example, when the archive host selection button 810 written as “archive host 1” is selected, the archive management server 905 displays the button 810 more emphasized than the other buttons 810 (for example, different colors). Or surround with a thick frame). Further, the archive management server 905 causes the administrator to select a physical VOL to be operated by a method such as displaying a message “Please select a desired archive VOL”. Further, the archive management server 905 displays a connection button 811, an attribute change button 813, and a disconnect button 815.

  The connection button 811 is a tool operated when logically connecting the archive host 903 selected by the administrator and the physical VOL selected by the administrator.

  The attribute change button 813 is a tool operated when changing an attribute (for example, state or storage capacity) related to the physical VOL selected by the administrator.

  The disconnect button 815 is a tool operated when disconnecting the logical connection between the archive host 903 selected by the administrator and the physical VOL selected by the administrator.

  When the connection button 811 is operated, the archive management host 905 logically connects the archive host 903 selected by the administrator and the physical VOL selected by the administrator. Specifically, for example, the archive management host 905 forms a logical path between the physical VOL selected by the administrator and the LUN of the storage control system having the physical VOL, and manages the contents of the logical path. The archive host 903 selected by the user is notified.

  In addition, when the attribute change button 813 is operated, the archive management host 905 accepts a change in attributes (for example, state or storage capacity) related to the physical VOL selected by the administrator. The archive management host 905 registers the input content after the change in the logical-physical VOL management table 953 and the like.

  Further, when the disconnect button 815 is operated, the archive management host 905 disconnects the logical connection between the archive host 903 selected by the administrator and the physical VOL selected by the administrator. Specifically, for example, the archive management host 905 issues a connection disconnection instruction for disconnecting the logical path to the storage control system 909 having a logical path formed between the LUN and the physical VOL.

  When the physical VOL is selected by the administrator from the archive VOL list in the operation GUI 801 shown in FIG. 14A, the archive management server 905 shows the display content of the operation GUI 801 as shown in FIG. Switch to the display content like this.

  That is, the archive management server 905 displays information (for example, state or storage capacity) regarding the selected physical VOL in the display area 817 described above. In addition, the archive management server 905 displays a connection button 811, an attribute change button 813, and a disconnect button 815. The archive management server 905 can accept the selection of the archive host from the administrator via the operation GUI 801 shown in FIG.

  After the archive host is selected, the archive management server 905 may select the physical VOL to connect or disconnect the archive host and the physical VOL. Alternatively, after receiving the selection of the physical VOL first, In response to the selection of the archive host, the archive host and the physical VOL may be connected or disconnected.

  As described above, according to the above-described embodiment, one or a plurality of storage control systems 909 are provided as one storage control system pool 907 to the archive host 903 that is the reading or writing source of the content archive, and Two or more physical VOLs 935 included in each storage control system 909 are provided as a plurality of physical VOLs 935 included in one storage control system pool 907. Specifically, a plurality of logical VOL-IDs respectively assigned to a plurality of physical VOLs 935 existing in the storage control system pool 907 are provided to the archive host 903, and which logical VOL-ID is which storage control system. The archive management server 905 manages information indicating which physical VOL-ID corresponds. For this reason, the archive host 903 simply designates a desired logical VOL-ID to the archive management server 905, and the archive management server 905 causes the storage control system and the physical VOL- having the physical VOL 935 corresponding to the logical VOL-ID. The ID can be found from the storage control system pool 907 and the physical VOL 935 in the found storage control system 909 can be accessed. As a result, each of the one or more archive hosts 903 has a physical configuration related to the storage control system pool 907 (for example, what storage control system exists and what physical VOL configuration in each storage control system 909 becomes. Etc.) can be eliminated.

  Further, according to the above-described embodiment, a content archive existing in a physical VOL on a certain disk type storage device is stored on another disk type storage device 933 (or in addition, another storage control system 909). Replicated to physical VOL. As a result, even if a content archive is damaged due to a certain disk-type storage device being damaged, the content archive is recovered using a copy of the content archive generated in the physical VOL on another disk-type storage device 933 can do.

  Further, according to the above-described embodiment, when a migration target physical VOL exists, the content archive on the disk type storage device 933 having the migration target physical VOL is specified based on the attribute of the migration target physical VOL. Are moved into a physical VOL on another disk storage device having the following disk characteristics. Accordingly, the content archive can be managed at an appropriate location based on the attribute of the physical VOL.

  Further, according to the above-described embodiment, the content archive 923 can be managed not in units of content archives but in units of physical VOLs that store content archives.

  By the way, several modifications can be considered in the above-described embodiment. Hereinafter, each modification will be described.

  (1) First modification.

  The first modification relates to the storage period of the content archive.

  FIG. 15 shows an example of a processing flow for setting a storage deadline.

In this first modification, the content archive host 903 is assumed to be a CIM (Common Information Model) client. The archive management server 905 is a CIM server, for example, CIMOM (CIM
Object Manager). Further, in the physical VOL management table 941 of the storage control system 909, for each physical VOL-ID, a storage period of a digital archive stored in the physical VOL 935 corresponding to the physical VOL-ID can be set. And

  The content archive host 903 generates a message describing the storage time limit and the logical VOL-ID corresponding to the storage destination physical VOL 935 for the content archive to be stored (S61). The message generated here describes what the management target element is, for example, “Class = volume”, and describes the attributes to be set for the management target element (for example, logical VOL). (For example, the storage period is described in the format of logical VOL-ID or “Time =...”). This message has a logical format regardless of the physical configuration of the storage control system. The content archive host 903 notifies the archive management server 905 of the generated message (S62). Note that at least one of the notified expiration date and logical VOL-ID may be specified by the user, or may be automatically determined based on the archive attribute of the content archive 923.

  The archive management server 905 interprets the received message, and grasps the logical VOL-ID and the storage time limit based on the interpretation. Then, the archive management server 905 refers to the logical-physical VOL management table 953 and sets the grasped retention date in the retention term setting field corresponding to the grasped logical VOL-ID (S63).

  Further, the archive management server 905 extracts the chassis ID and physical VOL-ID corresponding to the grasped logical VOL-ID from the logical-physical VOL management table 953 (S64). The archive management server 905 notifies the storage control system 909 corresponding to the extracted chassis ID of the storage deadline and physical VOL-ID that were grasped in S63, and instructs the setting of the storage deadline (S65). ).

  The storage control system 909 receives an instruction for setting a storage period from the archive management server 905, and responds to the instruction on the physical VOL management table 941 corresponding to the physical VOL-ID notified from the archive management server 905. The notified retention period is set in the retention period setting field (S66).

  The storage deadline can be expressed by a period such as the number of days, for example, or can be expressed by an expiration point (hereinafter simply referred to as “expiration date”) such as a date of birth. Further, at least one of the archive management server 905 and the storage control system 909 can control the timing of executing the action at the expiration of the storage period based on whether the set storage period is a period or a period. Hereinafter, a specific example thereof will be described.

  FIG. 16A shows an example of one record of the table 953 or 941 in the first modification of one embodiment of the present invention.

  In the first embodiment, the logical-physical VOL management table 953 or the physical VOL management table 941 in which the retention period is set includes, for example, a main time length in addition to the retention period for each physical VOL-ID. System downtime may be registered. The main time length and the system stop time length are affected when the set retention period is a period. The main time length for a physical VOL represents the time length from the start of counting the storage deadline for the physical VOL to the present regardless of the system stop time length. The system stop time length for a certain physical VOL represents the accumulation of the time length during which the storage control system 909 including the physical VOL is stopped (for example, the time length while the power is off).

  FIG. 16B shows an example of the flow of a storage expiration management process performed in the first modification of the embodiment of the present invention.

  At least one of the archive management host 905 and the storage control system 909 includes a system stop time length timer 11 that measures the system stop time length and a main timer 13 that measures the main time length. When the storage control system 909 includes the system stop time length timer 11, it is possible to notify the archive management server 905 of the measured system stop time length. That is, in the archive management system according to the first modification, the system stop time length timer 11 and the main timer 13 are provided in either one or both of the archive management host 905 and the storage control system 909. The archive management host 905 and the storage control system 909 can grasp the main time length and the system stop time length for each physical VOL-ID. The length can be set in the table 953 or 941.

  The archive management server 905 (and / or the storage control system 909) accesses the logical-physical VOL management table 953 (and / or physical VOL management table 941), and some physical VOL written in the access destination table 953 Reference is made to the storage deadline for the ID (S71), and it is checked whether the referenced storage deadline is expressed as a period or a deadline (S72).

  As a result of the check in S72, if it is expressed by a time limit (for example, expressed by year, month, day), the archive management server 905 compares the referenced storage time limit with the current date and time (S73). As a result, if the current date / time matches or has passed the retention period (Y in S73), the archive management server 905 determines whether the retention period has expired (for example, the physical corresponding to the certain physical VOL-ID). The content archive in the VOL is deleted (S74). Thereafter, the archive management server 905 refers to the storage expiration date for another physical VOL-ID, and repeats the processing after S72.

  As a result of the check in S72, when expressed in a period (for example, expressed in days), the archive management server 905 determines whether or not to consider the length of the system stop time (S74). As a result of this determination, for example, for each content archive or each physical VOL, whether or not to consider the system stop time length (in other words, whether the storage time limit is the real time length or the main time length described later) is set. In addition, it can be output according to the contents of the setting, and what kind of content archive or what physical VOL should consider the length of system downtime (for example, what kind of data size should consider the length of system downtime) May be issued based on determination policy data (not shown).

  As a result of the determination in S74, when considering the system stop time length, the archive management server 905 calculates the real time length by subtracting the system stop time length from the main time length corresponding to the certain physical VOL-ID. The calculated actual time length is compared with the storage time limit (S75). As a result, if the actual time length matches or exceeds the retention period (Y in S75), the archive management server 905 executes an action when the retention period expires (S76). Thereafter, the archive management server 905 refers to the storage expiration date for another physical VOL-ID, and repeats the processing after S72.

  As a result of the determination in S74, when the system stop time length is not considered, the archive management server 905 compares the main time length corresponding to the certain physical VOL-ID with the storage time limit (S77). As a result, if the main time length coincides with or exceeds the retention period (Y in S77), the archive management server 905 executes an action when the retention period expires (S78). Thereafter, the archive management server 905 refers to the storage expiration date for another physical VOL-ID, and repeats the processing after S72.

  The storage control system 909 can execute the same processing as the above series of processing by referring to the physical VOL management table 941.

  In the first modification, the archive management server 905 or the storage control system 909 has a storage period of a physical VOL 935 expressed as a period, and when managing the storage period with a real time length, The storage period of the content archive in the certain physical VOL 935 can be extended as long as the storage control system 909 is stopped. Specifically, for example, a storage time limit “300 days” is set, and the main time length is “300 days”, and the system stop time length is “2 days” (that is, the real time length “298 days”). ), If the storage deadline is managed by the main time length, the data erasure process is performed according to the storage time limit “300 days”, but if the storage time limit is managed by the real time length, the system stop time length Is “2 days”, the timing at which the data erasure process is performed is extended by 2 days.

  (2) Second modification.

The second modification relates to the deletion of the content archive. At least one of the archive management server 905 and the storage control system 909 can select a data erasing method from a plurality of types of data erasing methods, and perform data erasing processing according to the selected data erasing method. As a plurality of types of data erasing methods, for example, the following methods (A) to (C),
(A) a method of using a data erasure execution program (not shown) included in the storage control system;
(B) Data composed of a predetermined data pattern or a data pattern selected from two or more types of data patterns (for example, null data or random data) (hereinafter collectively referred to as “erasure pattern”), Writing to the physical VOL,
(C) A method of executing data erasure processing according to the method of (B) one or more times,
There is. The selection of the data erasure method may be automatically performed according to an erasure rule described later, or may be performed by the user at an arbitrary timing.

  When the method (A) is adopted, for example, the read / write control program 961 of the archive management server 905 calls the data erasure execution program of the storage control system 909, so that all data in the physical VOL that is the data erasure process target is stored. (Or a content archive to be deleted) can be deleted.

  When the method (B) is adopted, for example, the archive management server 905 or the storage control system 909 writes data composed of erase patterns (hereinafter referred to as erase pattern data) in the physical VOL that is the data erase process target. Can do. Alternatively, the archive management server 905 sends path information to the data erasure processing target physical VOL and a data erasure command to the content archive host 903, and the content archive host 903 responds to the received data erasure command, According to the received path information, data in the physical VOL can be erased by transmitting the erasure pattern data and the write command to the physical VOL that is a data erasure process target.

  When the method (C) is adopted, for example, the archive management server 905 or the storage control system 909 executes a process of writing null pattern data once in the entire physical VOL to be erased (in other words, a format process). Alternatively, it is also possible to execute a process of writing random pattern data a plurality of times (for example, seven times) in the entire physical VOL that is a data erasure process target.

  Note that what data pattern is selected from two or more types of data patterns and how many times the data erasure process is executed are determined based on, for example, the physical VOL to be erased or the attribute of the content archive. be able to.

  FIG. 17 shows an example of a process flow for executing the data erasure process.

  The archive management server 905 (and / or the storage control system 909) holds the erasure rule data 22, for example. In the erasure rule data 22, an erasure rule indicating what data erasure process should be performed when performing data erasure processing for a content archive or physical VOL having what attribute is described.

  The archive management server 905 (and / or the storage control system 909) determines whether or not to perform processing for selecting a data erasing method (S81).

  If it is determined in S81 that the process is not to be performed (N in S81), the archive management server 905 executes a data erasure process according to a predetermined data erasure method (S82).

  On the other hand, if it is determined that the process for selecting the data erasure method is to be performed (Y in S81), the archive management server 905 performs data erasure from a plurality of types of data erasure methods according to the contents described in the erasure rule data 22. A method is selected (S83), and a data erasure process according to the selected data erasure method is executed (S84).

  (3) Third modification.

  The third modification relates to copying or moving of the content archive. Specifically, in the third modification, attribute information (for example, “RO” or the like) related to the replication source physical VOL or the migration source physical VOL of the content archive is associated with the replication destination physical VOL or the migration destination physical VOL. Can do. Specific examples will be described below.

  FIG. 18 shows an example of processing for associating the attribute information of the copy source physical VOL of the content archive with the copy destination physical VOL.

  The archive management server 905 or the first storage control system (storage control system including the copy source physical VOL 935A) 909, for example, from the logical-physical VOL management table 953 or the physical VOL management table 941 after S37 and S38 in FIG. The attribute information corresponding to the physical VOL-ID of the replication source physical VOL 935A is extracted, and the extracted attribute information is transmitted to the second storage control system (storage control system including the replication destination physical VOL 935B) 909 (S38-1). ). The attribute information is, for example, information including at least one of a physical VOL state (for example, “RO”), a storage time limit, a main time length, and a system stop time length.

  The second storage control system 909 associates the received attribute information with the copy destination physical VOL 935B (S38-2). Specifically, the second storage control system 909 writes the received attribute information in a column on the physical VOL management table 941 provided for itself corresponding to the physical VOL-ID of the copy destination physical VOL 935B.

  Thereafter, the processing after S39 in FIG. 10 is performed.

  Through the processes of S38-1 and S38-2 described above, the state of the replication destination physical VOL 935B, the storage time limit, and the like can be made the same as those of the replication source physical VOL 935A.

  FIG. 19 shows an example of processing for associating the attribute information of the migration source physical VOL of the content archive with the migration destination physical VOL.

  The archive management server 905 or the first storage control system 909 corresponds to the physical VOL-ID of the migration source physical VOL 935G from the logical-physical VOL management table 953 or the physical VOL management table 941, for example, after S59 and S60 in FIG. The extracted attribute information is extracted, and the extracted attribute information is transmitted to the second storage control system 909 (S60-1). The second storage control system 909 associates the received attribute information with the migration destination physical VOL 935H (S60-2).

  The archive management server 905 or the first storage control system 909 deletes the attribute information corresponding to the physical VOL-ID of the migration source physical VOL 935G from the logical-physical VOL management table 953 or the physical VOL management table 941 (or, for example, For the state, “Free” is set), and the data erasure process according to a certain data erasure method is performed on the migration source physical VOL 935G (S61 ′).

  Thereafter, the processing after S62 in FIG. 13 is performed.

  Through the processing of S60-1 and S60-2 described above, the state of the migration destination physical VOL 935H, the storage time limit, and the like can be made the same as those of the migration source physical VOL 935G. Further, the source physical VOL 935G can be made a blank physical VOL by the processing of S61 ′.

  As mentioned above, although embodiment of this invention and some modification were demonstrated, these are the illustrations for description of this invention, Comprising: In the meaning which limits the scope of the present invention only to these embodiment and modification Absent. The present invention can be implemented in various other forms.

  For example, the copy destination physical VOL and the transfer destination physical VOL are not completely empty physical VOLs in which no content archive is registered, but are not used for storing a copy of the content archive or a content archive to be moved, for example. It only needs to have storage capacity.

  For example, in each storage control system 909, a logical path may be prepared in advance between the LUN and the physical VOL.

Further, as a highly reliable and / or high performance disk type storage device, for example, ANSI
There is a disk-type storage device having a fiber channel (hereinafter “FC”) interface that is being standardized by T11. Further, the disk type storage device with low reliability and / or low performance includes, for example, ANSI.
There is a disk type storage device (more specifically, for example, a serial ATA disk type storage device) having an ATA (ATAttachment) interface, which is being standardized by T13.

  Further, the retention period set in at least one of the archive management server 905 and the storage control system 909 is not limited to that notified from the content archive host 903, and is automatically set based on, for example, the attributes of the digital archive. May be.

  In addition, one content archive may be stored in one physical VOL 935, or a plurality of content archives may be stored. When a plurality of content archives are stored in one physical VOL 935, even if one storage time limit is set for one physical VOL 935 (for example, the one with the latest expiration of the storage time limit among a plurality of content archives). It may be set for each content archive. When a retention period is set for each content archive, for example, each retention period may be associated with a content archive ID (for example, a name) or associated with a logical block address range in which the content archive is stored. It may be done.

It is a block diagram which shows the structure of the archive management system which concerns on this embodiment. The configuration example of the logical VOL management table 925 and the archive attribute table 927 stored in the host storage device 915 of the archive host 903 is shown. A configuration example of the physical VOL management table 941, the LUN management table 943, and the control system attribute 945 stored in the storage control memory 937 of the storage control system 909 is shown. A configuration example of the logical-physical VOL management table 953 and the LUN management table 955 among a plurality of tables stored in the server storage device 947 of the archive management server 905 is shown. The processing flow performed when the content archive 923 is stored in the physical VOL is shown. The processing flow performed when the content archive 923 is stored in the physical VOL is shown. An example of the processing flow performed when the correspondence relationship between the logical VOL-ID and the physical VOL-ID is updated is shown. An example of the concept regarding the replication management in this embodiment is shown. The configurations of the logical-physical VOL management table 953 and the replication management table 957 when the replication relationship shown in FIG. 8 exists are shown. The flow of replication processing of the content archive 923 is shown. An example of the concept regarding the migration management according to the present embodiment is shown. A configuration example of the logical-physical VOL management table 953 and the physical VOL attribute management table 959 when the migration relationship shown in FIG. 11 exists is shown. The flow of the migration process of the content archive 923 is shown. The structural example of operation GUI which the archive management server 905 displays is shown. An example of a processing flow for setting a storage deadline will be shown. FIG. 16A shows an example of one record of the table in the first modification of the embodiment of the present invention. FIG. 16B shows an example of the flow of the storage period management process performed in the first modification of the embodiment of the present invention. The process flow performed in the 2nd modification of one Embodiment of this invention, Comprising: An example of the process flow for performing a data deletion process is shown. An example of the process for associating the attribute information of the copy source physical VOL of the content archive with the copy destination physical VOL in the third modification of the embodiment of the present invention will be shown. An example of the process for associating the attribute information of the migration source physical VOL of the content archive with the migration destination physical VOL in the third modification of the embodiment of the present invention will be shown.

Explanation of symbols

  901 ... Content server, 903 ... Content archive host, 905 ... Archive management server, 909 ... Storage control system, 919 ... Host controller, 923 ... Content archive, 927 ... Logical VOL management table, 929 ... Archive software, 933 ... Disc type Storage device, 935... Physical volume (physical VOL), 939... Storage control device, 947... Server storage device, 949... Server memory, 951. 957 ... Replication management table, 959 ... Physical VOL attribute management table, 961 ... Read / write control program, 963 ... Retention period management program, 965 ... Replication management program, 966 ... Migration tube Program

Claims (16)

A server connected to an archive host that outputs a digital archive and a plurality of storage control systems including a disk-type storage device in which the digital archive is stored;
The two or more disk-type storage devices of the plurality of storage control systems are provided with a plurality of physical volumes that are storage areas for storing digital archives,
The storage control system includes a host connection unit connected to the archive host, and a volume pool including one or more physical volumes not logically connected to the host connection unit,
In each of the storage control systems, one or more physical IDs respectively assigned to one or more physical volumes included in the storage control system among the plurality of physical volumes are managed,
The archive host manages a plurality of logical IDs respectively assigned to the plurality of physical volumes,
For each of the plurality of physical volumes, a volume management storage area that stores the logical ID, the physical ID, and a control system ID of a storage control system including the physical volume;
If the archive host receives the designation of the logical ID to the archive host has selected from the plurality of logical ID when reading or writing the digital archive from the archive host, physical ID corresponding to the logical ID of the received And extraction means for extracting the control system ID from the volume management storage area;
Access path notification means for notifying the archive host of access path information for accessing the physical volume having the physical ID, which is information based on the extracted physical ID and control system ID;
Connection instruction means for outputting a connection instruction for logically connecting a physical volume corresponding to the extracted physical ID to the host connection unit to the storage control system identified from the acquired control system ID;
After the archive host accesses the physical volume corresponding to the extracted physical ID, the extraction instruction for disconnecting the connection between the physical volume corresponding to the acquired physical ID and the host connection unit is extracted. Disconnection instruction means for outputting to the storage control system identified from the control system ID determined;
Retention period setting means for setting an archive retention period represented by a period in the volume management storage area for a certain physical volume in which the digital archive is stored;
First time length detection means for detecting a first time length that is a time length from when the digital archive is stored in the physical volume to the present time;
Second time length detecting means for detecting a second time length that is a time length when the storage control system having the certain physical volume is stopped;
A third time length calculating means for calculating a third time length that is a difference between the first time length and the second time length;
The calculated third time length is compared with the period represented by the archive retention period set for the certain physical volume to determine whether the third time length is equal to or longer than the period, If the result of the determination is negative, the digital archive in the certain physical volume is not deleted, and if the result of the determination is affirmative, the digital archive in the certain physical volume is deleted. With erasure means
A server comprising It further comprises a write prohibition state setting means,
The volume management area further stores an archive retention period and a volume state for each of the plurality of physical volumes,
The storage time limit setting means, recorded when the digital archive to physical volume corresponding to the extracted physical ID is stored, the storage time limit corresponding to the physical volumes that the digital archive is stored in the volume management storage area And
The write inhibit state setting means, when said digital archiving the physical volume corresponding to the extracted physical ID is stored, the volume of the write inhibit state as the volume status corresponding to the physical volume which the digital archive is stored Record in the management storage area ,
The server according to claim 1. In each of the plurality of storage control systems, a storage area for storing each volume state of each physical volume included in the storage control system, and access from the archive host to each physical volume based on each volume state And storage control device to control,
3. The write prohibition instructing unit for instructing a storage control system having a physical volume in which the digital archive is stored to set the volume state of the physical volume in which the digital archive is stored into a write prohibition state. server. The volume management area further stores a volume state for each of the plurality of physical volumes,
A replication destination that selects a replication destination physical volume that can store a digital archive in the replication source physical volume selected from among the plurality of physical volumes based on the volume state from the plurality of physical volumes Physical volume selection means;
A copy of the digital archive in the copy source physical volume is copied by controlling at least one of the first storage control system having the copy source physical volume and the second storage control system having the copy destination physical volume. The server according to any one of claims 1 to 3, further comprising archive duplicating means for generating the destination physical volume. The disk characteristics relating to the disk type storage device having a physical volume are high reliability or high performance and low reliability meaning that the reliability is lower than the high reliability, or lower performance than the high performance. There is a low performance that means
The volume management storage area stores the disk characteristics for each of a plurality of physical volumes,
The copy destination physical volume selection means selects the copy destination physical volume based on the disk characteristics;
The server according to claim 4 . The volume management area further stores a volume state for each of the plurality of physical volumes,
A migration destination that selects a migration destination physical volume that can store a digital archive in a migration source physical volume selected from among the plurality of physical volumes based on the volume state, from the plurality of physical volumes. Physical volume selection means;
By controlling at least one of the first storage control system having the migration source physical volume and the second storage control system having the replication destination physical volume, the digital archive in the migration source physical volume is transferred to the migration destination physical volume. The server according to any one of claims 1 to 5, further comprising archive moving means for moving to a volume. The disk characteristics relating to the disk type storage device having a physical volume are high reliability or high performance and low reliability meaning that the reliability is lower than the high reliability, or lower performance than the high performance. There is a low performance that means
The volume management area stores the disk characteristics for each of the plurality of physical volumes,
The migration destination physical volume selection means selects the migration destination physical volume based on the disk characteristics;
The server according to claim 4 . The retention period setting means sets an archive retention period expressed in the format selected by the user among the period and the period in the volume management storage area,
If the archive storage deadline is expressed in the form of a deadline, the erasure unit compares the current date and time with the deadline represented by the archive storage deadline, and determines whether the current date and time is after the deadline. And if the result of the determination is affirmative, the digital archive in the certain physical volume is deleted, while if the archive retention period is expressed in the form of a period, the third time Compare the length with the time period,
The server according to any one of claims 1 to 7 . It further comprises a deletion method selection means for selecting a data deletion method from a plurality of types of data deletion methods,
The erasure means erases the digital archive in the physical volume according to the selected data erasure method ;
The server according to any one of claims 1 to 8 . Each of the plurality of storage control systems manages volume attribute information for each of two or more physical volumes that it has,
The volume management storage area stores volume attribute information for each of the plurality of physical volumes,
Controlling at least one of a first storage control system having a first physical volume and a second storage control system having a second physical volume, the digital archive in the first physical volume is stored in the first storage volume. Archive generating means for generating the second physical volume;
The server according to any one of claims 1 to 9, further comprising volume attribute information transmission means for transmitting volume attribute information corresponding to the first physical volume to the second storage control system. The archive generation means moves the digital archive in the first physical volume to the second physical volume,
When a digital archive is moved from the first physical volume to the second physical volume, the volume management storage area or the first storage control system is associated with the first physical volume. Attribute information erasing means for erasing the volume attribute information;
The server according to claim 10 . A plurality of storage control systems having disk-type storage devices in which digital archives are stored;
An archive host that outputs the digital archive; and a server connected to the plurality of storage control systems,
The two or more disk-type storage devices of the plurality of storage control systems are provided with a plurality of physical volumes that are storage areas for storing digital archives,
The storage control system includes a host connection unit connected to the archive host, and a volume pool including one or more physical volumes not logically connected to the host connection unit,
In each of the storage control systems, one or more physical IDs respectively assigned to one or more physical volumes included in the storage control system among the plurality of physical volumes are managed,
The archive host manages a plurality of logical IDs respectively assigned to the plurality of physical volumes,
When the archive host writes or reads a digital archive, the archive host selects a logical ID from the plurality of logical IDs, and sends a designation of the selected logical ID to the server.
The server is
For each of the plurality of physical volumes, a volume management storage area that stores the logical ID, the physical ID, and a control system ID of a storage control system including the physical volume;
Extraction means for extracting a physical ID and a control system ID corresponding to the received logical ID from the volume management storage area when a designation of a logical ID selected from the plurality of logical IDs is received from the archive host; ,
Access path notification means for notifying the archive host of access path information for accessing a physical volume having the physical ID, which is information based on the extracted physical ID and control system ID;
The storage control system includes:
Means for receiving a write command or a read command based on the notified access path information from the archive host;
First storage control means for storing the digital archive in a physical volume having a physical ID specified from the access path information when the write command is received;
A second storage control unit that, when receiving the read command, reads out the digital archive from a physical volume having a physical ID specified from the access path information and transmits the digital archive to the archive host;
The server
Connection instruction means for outputting a connection instruction for logically connecting a physical volume corresponding to the extracted physical ID to the host connection unit to the storage control system identified from the acquired control system ID;
After the archive host accesses the physical volume corresponding to the extracted physical ID, the extraction instruction for disconnecting the connection between the physical volume corresponding to the acquired physical ID and the host connection unit is extracted. A disconnection instruction means for outputting to the storage control system identified from the control system ID determined,
The storage control system includes:
Connection means for selecting a physical volume corresponding to the acquired physical ID from the volume pool and logically connecting the selected physical volume to the host connection unit when the connection instruction is received from the server When,
When the disconnection instruction is received from the server, further comprising disconnection means for disconnecting a logical connection between the physical volume corresponding to the acquired physical ID and the host connection unit,
At least one of the server and the storage control system is
A retention period setting means for setting an archive retention period represented by a period for a physical volume in which the digital archive is stored;
First time length detection means for detecting a first time length that is a time length from when the digital archive is stored in the physical volume to the present time;
Second time length detecting means for detecting a second time length that is a time length when the storage control system having the certain physical volume is stopped;
A third time length calculating means for calculating a third time length that is a difference between the first time length and the second time length;
The calculated third time length is compared with the period represented by the archive retention period set for the certain physical volume to determine whether the third time length is equal to or longer than the period, If the result of the determination is negative, the digital archive in the certain physical volume is not deleted, and if the result of the determination is affirmative, the digital archive in the certain physical volume is deleted. With erasure means
A storage system comprising: The volume management area further stores an archive retention period and a volume state for each of the plurality of physical volumes,
The server further includes a write prohibition state setting unit and a write prohibition instruction unit;
If the digital archive is stored in a physical volume corresponding to the extracted physical ID , the retention period setting means records a retention period corresponding to the physical volume in which the digital archive is stored in the volume management storage area. And
The write inhibit condition setting means, when said digital archiving the physical volume corresponding to the extracted physical ID is stored, the volume of the write inhibit state as the volume status corresponding to the physical volume which the digital archive is stored Recorded in the management storage area
The write inhibition instruction means, that the volume state of the physical volumes that the digital archive is stored in the write-protected state, and instructs the storage control system having a physical volume in which the digital archive is stored,
The storage control system comprises:
A volume state storage area for storing each volume state for each physical volume provided in the storage control system;
Storage control means for controlling access from the archive host to each physical volume based on each volume state;
A volume corresponding to the physical ID of the physical volume storing the digital archive when the write prohibiting means of the server instructs the volume state of the physical volume storing the digital archive to be in a write protected state Volume state change means for recording a write prohibited state in the volume state storage area as a state;
The storage system according to claim 12 . At least one of the server and the storage control system further comprises an erasure method selection means for selecting a data erasure method from a plurality of types of data erasure methods,
The erasure means erases the digital archive in the physical volume according to the selected data erasure method;
The storage system according to claim 12 or 13 . Each of the plurality of storage control systems manages volume attribute information for each of two or more physical volumes that it has,
The volume management storage area stores volume attribute information for each of the plurality of physical volumes,
The server controls at least one of a first storage control system having a first physical volume and a second storage control system having a second physical volume, so that the digital in the first physical volume Archive generating means for generating an archive in the second physical volume;
At least one of the server and the first storage control system acquires volume attribute information corresponding to the first physical volume from the volume management storage area or the first storage control system, and the acquired volume Further comprising volume attribute information transmitting means for transmitting attribute information to the second storage control system;
The second storage control system further comprises means for setting the received volume attribute information for the second physical volume;
The storage system according to any one of claims 12 to 14 . A plurality of physical volumes as data storage areas provided on two or more disk-type storage devices provided in a plurality of storage control systems;
In each of the storage control systems, one or more physical IDs respectively assigned to one or more physical volumes included in the storage control system among the plurality of physical volumes are managed,
In the archive host that outputs the digital archive, a plurality of logical IDs respectively assigned to the plurality of physical volumes are managed,
The storage control system includes a host connection unit connected to the archive host, and a volume pool including one or more physical volumes not logically connected to the host connection unit,
A step wherein the archive host, when writing or reading the digital archives, which selects a logical ID from the plurality of logical ID, and transmits the logical ID selected to the server,
For each of the plurality of physical volumes , the server receives from the archive host from a volume management storage area that stores the logical ID, the physical ID, and a control system ID of a storage control system that includes the physical volume. Extracting a physical ID and a control system ID corresponding to the logical ID,
The server notifying the archive host of access path information for accessing a physical volume having the physical ID, which is information based on the extracted physical ID and control system ID;
The server outputs a connection instruction for logically connecting a physical volume corresponding to the extracted physical ID to the host connection unit to the storage control system identified from the acquired control system ID. When,
The storage control system logically connecting a physical volume corresponding to the extracted physical ID to the host connection unit;
The archive host accessing a physical volume corresponding to the extracted physical ID and logically connected to the host connection unit using the access path information;
Disconnection instruction to disconnect the connection between the physical volume corresponding to the acquired physical ID and the host connection unit after the server accesses the physical volume corresponding to the extracted physical ID Output to a storage control system identified from the extracted control system ID;
The storage control system disconnecting a logical connection between the physical volume corresponding to the extracted physical ID and the host connection unit;
Setting an archive retention period represented by a period in the volume management storage area for a physical volume in which the digital archive is stored;
Detecting a first time length that is a time length from when the digital archive is stored in the certain physical volume to a present time;
Detecting a second time length that is a time length during which the storage control system including the certain physical volume is stopped;
Calculating a third time length that is a difference between the first time length and the second time length;
The calculated third time length is compared with the period represented by the archive retention period set for the certain physical volume to determine whether the third time length is equal to or longer than the period, If the determination is negative, the digital archive in the certain physical volume is not deleted, and if the result of the determination is affirmative, the digital archive in the certain physical volume is deleted. A method comprising: