WO2016016920A1 - Système informatique et programme de gestion - Google Patents

Système informatique et programme de gestion Download PDF

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Publication number
WO2016016920A1
WO2016016920A1 PCT/JP2014/069781 JP2014069781W WO2016016920A1 WO 2016016920 A1 WO2016016920 A1 WO 2016016920A1 JP 2014069781 W JP2014069781 W JP 2014069781W WO 2016016920 A1 WO2016016920 A1 WO 2016016920A1
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Prior art keywords
volume
storage device
pool
primary
quorum
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PCT/JP2014/069781
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English (en)
Japanese (ja)
Inventor
優人 松本
恵亮 福本
雄一郎 長島
柘植　陽一郎
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株式会社日立製作所
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Priority to PCT/JP2014/069781 priority Critical patent/WO2016016920A1/fr
Publication of WO2016016920A1 publication Critical patent/WO2016016920A1/fr

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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/06—Digital input from, or digital output to, record carriers, e.g. RAID, emulated record carriers or networked record carriers

Definitions

  • the present invention relates to a computer system and a management program.
  • Patent Document 1 discloses a computer system that performs data mirroring with a plurality of storage devices. More specifically, this computer system can continue the processing requested by the host using the remaining storage device without data loss even if a failure occurs in any storage device.
  • Patent Document 1 Since the construction of a highly available computer system such as Patent Document 1 is complicated and difficult, a highly skilled storage administrator has constructed a system including volume allocation to a host.
  • volume allocation has become a management process that occurs more frequently. From this point of view as well, it is required to facilitate volume allocation in such a highly available system.
  • a computer system includes a plurality of storage apparatuses and a management computer connected to the plurality of storage apparatuses.
  • the management computer receives a designation of a host computer to which a volume is allocated and a designation of a capacity of the volume, and is capable of communicating with the designated host computer from the plurality of storage apparatuses and is designated.
  • a storage device capable of providing a volume of the selected capacity is selected as a first storage device candidate, information indicating the first storage device candidate is displayed on a display device, and the first storage device in the first storage device candidate is displayed.
  • a storage device that receives the designation of the device is capable of communicating with the designated host computer and the first storage device and is capable of providing a volume of the designated capacity from among the plurality of storage devices; Select as a second storage device candidate, and display information indicating the second storage device candidate on the display device Receiving the designation of the second storage device in the second storage device candidate and allocating the first volume of the designated capacity in the first storage device to the host computer. Instructing the storage device, instructing the second storage device to allocate the second volume having the specified capacity in the second storage device to the host computer, and assigning the first volume and the second volume to the host computer. The first storage device and the second storage device are instructed to start bi-directional mirroring as a pair.
  • a volume table 1500 is shown.
  • a pool table 1600 is shown.
  • a bidirectional mirroring table 2200 is shown.
  • the Quorum volume table 2300 is shown.
  • the operation of the basic condition selection program 3001 is shown.
  • a primary site selection process 3030 is shown.
  • the primary storage device selection processing S1210 is shown.
  • the primary volume selection process S1220 is shown.
  • the secondary site selection process 3040 is shown.
  • the secondary storage device selection processing S1510 is shown.
  • the secondary volume selection process S1520 is shown.
  • a quorum site selection process 3050 is shown.
  • a configuration change process 3060 is shown.
  • a screen transition from the initial screen 4100 to the volume allocation screen 4200 when the basic condition selection program 3001 is executed is shown.
  • the pre-selection state of the host selection screen 4300 and the post-selection state of the host selection screen 4300 are shown.
  • the volume allocation screen 4200 at the time of primary storage apparatus selection processing S1210 is shown.
  • the volume allocation screen 4200 at the time of primary volume selection processing S1220 is shown.
  • a pool selection screen 4700 is shown.
  • the volume allocation screen 4200 at the time of secondary storage apparatus selection processing S1510 is shown.
  • the volume allocation screen 4200 at the time of secondary volume selection processing S1520 is shown.
  • the volume allocation screen 4200 at the time of the Quorum site selection process 3050 is shown.
  • the components selected by the basic condition selection program 3001 are shown.
  • the component selected by primary storage apparatus selection process S1210 is shown.
  • the component selected by primary volume selection process S1220 is shown.
  • the component selected by secondary storage apparatus selection process S1510 is shown.
  • the component selected by secondary volume selection process S1520 is shown.
  • the components selected by the Quorum site selection process 3050 are shown.
  • the components set by the configuration change process 3060 and the bidirectional mirroring start process 3061 are shown.
  • the information of the present embodiment will be described using the expression “table”.
  • the information may not necessarily be expressed by a data structure using a table.
  • it may be expressed by a data structure such as “list”, “DB (database)”, “queue”, or the like. Therefore, “table”, “list”, “DB”, “queue”, and the like can be simply referred to as “information” in order to show that they do not depend on the data structure.
  • the expressions “identification information”, “identifier”, “name”, “name”, “ID” can be used, and these can be replaced with each other. It is.
  • program will be the subject of the description, but since the program uses a memory and a communication port (communication control device) to perform processing defined by being executed by a CPU (Central Processing Unit), The description may be based on the CPU.
  • the processing disclosed with the program as the subject may be processing performed by a computer such as a server computer, a storage controller, a management computer, or an information processing apparatus. Part or all of the program may be realized by dedicated hardware, or may be modularized.
  • Various programs may be installed in each computer by a program distribution server or a storage medium.
  • the management computer has input / output devices.
  • input / output devices include a display, a keyboard, and a pointer device, but other devices may be used.
  • a serial interface or an Ethernet interface is used as the input / output device, and a display computer having a display or keyboard or pointer device is connected to the interface, and the display information is transmitted to the display computer.
  • the display computer may perform the display, or the input may be replaced by the input / output device by receiving the input.
  • a set of one or more computers that manage the computer system and display the display information of the present invention may be referred to as a management system.
  • the management computer displays display information
  • the management computer is a management system
  • a combination of the management computer and the display computer is also a management system.
  • a plurality of computers may realize processing equivalent to that of the management computer.
  • the plurality of computers if the display computer performs the display, display (Including computers) is the management system.
  • FIG. 1 shows the configuration of a computer system according to an embodiment of the present invention.
  • This computer system includes a plurality of storage apparatuses 100, a plurality of host computers 130, and a management system 170.
  • Each storage apparatus 100 and each host computer 130 are arranged in any of a plurality of sites 140.
  • the storage device 100 and the host computer 130 in one site 140 are connected to each other via an internal network 180 such as a SAN (Storage Area Network) or a LAN (Local Area Network), and a WAN (Wide Area Network) or the like.
  • SAN Storage Area Network
  • LAN Local Area Network
  • WAN Wide Area Network
  • the management system 170 includes a management system computer 150 and a plurality of management client computers 160.
  • the management system computer 150 and the management client computer 160 are connected to the storage apparatus 100 and the host computer 130 in the plurality of sites 140 via the external network 190.
  • the management system 170 may be a single computer, or may be a part of the host computer 130 or the storage apparatus 100.
  • the storage apparatus 100 includes a plurality of disks 110, a controller 112, an interface 113, and an interface 114. Each unit of the storage apparatus 100 is connected to each other by an internal bus.
  • the controller 112 controls each unit of the storage apparatus 100.
  • the controller 112 further creates a parity group 111 using a plurality of disks 110.
  • the parity group 111 is implemented by, for example, redundant RAID (Redundant Arrays of Inexpensive) Disks) to improve availability.
  • the interface 113 is connected to the internal network 180.
  • the interface 114 is connected to the external network 190.
  • the type of the disk 110 is, for example, SSD (Solid State Drive), SAS (Serial Attached Small Computer System Interface) -HDD (Hard Disk Drive), SATA (Serial Advanced Technology Attachment) -HDD.
  • the host computer 130 includes a cache 131, a processor 132, an interface 133, and an interface 134. Each part of the host computer 130 is connected to each other by an internal bus.
  • the cache 131 stores programs and data for the processor such as the application 135.
  • the processor 132 controls each unit of the host computer 130 according to the program and data stored in the cache 131.
  • the interface 133 is connected to the internal network 180.
  • the interface 134 is connected to the external network 190.
  • the management system computer 150 includes a memory 153, a processor 154, and an interface 155.
  • the memory 153 may be a volatile memory, a non-volatile storage device, or may include both of them.
  • the memory 153 stores programs and data such as the management server program 151 and the configuration information table 152.
  • the processor 154 controls each unit of the management system computer 150 and the plurality of storage apparatuses 100 according to the program and data stored in the memory 153.
  • the interface 155 is connected to the external network 190.
  • the management client computer 160 includes a cache 161, a processor 162, and an interface 163.
  • the cache 161 includes programs and data such as the management client program 166.
  • the processor 162 controls each unit of the management client computer 160 and the management system computer 150 according to the program and data stored in the cache 161.
  • the interface 163 is connected to the external network 190.
  • the management system computer 150 transmits screen information for setting the storage apparatus 100 to the management client computer 160.
  • the management client computer 160 displays a screen on the display device 165 according to the screen information.
  • the management client computer 160 receives an operation of the input device 164 by the administrator, and transmits information on the received operation to the management system computer 150.
  • these display device and input device may be used instead of the management client computer 160.
  • Each of the plurality of storage apparatuses 100 creates a volume in response to an instruction from the management system computer 150, assigns a pool including the parity group 111 or a storage area in the parity group 111 to the volume, and assigns the volume to the host computer 130. assign. As a result, the host computer 130 can recognize the volume and access the volume.
  • the plurality of storage apparatuses 100 provide a group of volumes with higher availability than the normal volume.
  • this group is referred to as a bidirectional mirroring (BM) group.
  • Fig. 2 shows the operation of the BM group.
  • the state Ca indicates the state of the BM group at the normal time.
  • the BM group includes a primary volume and a secondary volume that form a pair of bidirectional mirroring, and a quorum volume that stores failure information indicating a failure of the pair.
  • each of the primary volume, the secondary volume, and the quorum volume may be referred to as a BM volume.
  • failure information of the primary volume and the secondary volume stored in the quorum volume may be referred to as quorum.
  • the management system computer 150 determines a primary volume, a secondary volume, and a quorum volume for the BM group.
  • the storage apparatus 100 including the primary volume is referred to as a primary storage apparatus (Ap)
  • the storage apparatus 100 including the secondary volume is referred to as a secondary storage apparatus (As)
  • the storage apparatus 100 including the quorum volume is referred to as a quorum storage apparatus (Aq).
  • the site 140 where the primary storage device is arranged is called a primary site (Sp)
  • the site 140 where the secondary storage device is arranged is called a secondary site (Ss)
  • the site 140 where the Quorum storage device is arranged is called Quorum This is called a site (Sq).
  • the primary site, the secondary site, and the Quorum site are preferably different sites.
  • the host computer 130 to which the BM group is assigned is called an assignment destination host, the assignment destination host at the primary site is called a primary host (Hp), and the assignment destination host at the secondary site is called a secondary host (Hs).
  • the primary host, the secondary host, the primary storage device, and the secondary storage device are connected to each other.
  • the primary storage device, the secondary storage device, and the quorum storage device create a BM group including a primary volume, a secondary volume, and a quorum volume. Assign to a host.
  • the primary host and the secondary host are clustered, and even if a failure occurs in one host computer, the application is continued if the other host computer is normal.
  • the primary storage device and the secondary storage device perform bidirectional mirroring on the primary volume and secondary volume pair. Thereby, each of the primary host and the secondary host can access both the primary volume and the secondary volume.
  • the pair is synchronized by responding to the host computer by performing synchronous remote copy to the other storage device. This ensures pair synchronization.
  • the primary storage device and the secondary storage device periodically access the quorum volume.
  • the quorum volume holds priority information indicating which one of the primary storage device and the secondary storage device is valid when a failure occurs.
  • the priority information indicates that the primary storage device is operated and the secondary storage device is blocked when a communication failure occurs between the primary storage device Sp and the secondary storage device.
  • the primary storage device and the secondary storage device periodically communicate with the quorum volume. As a result, the operation of the quorum volume is guaranteed.
  • the state Cb indicates a state in which a failure has occurred in the primary storage device or the network connected thereto in the state Ca.
  • the secondary storage device fails to communicate with the primary storage device and recognizes that the secondary storage device is valid by accessing the quorum volume, the I / O request from the primary host and the secondary host continues. Process. As a result, although bi-directional mirroring cannot be performed, the secondary volume is changed to a normal volume that is not a BM volume, and the I / O processing can be continued.
  • the state Cc indicates a state in which a failure has occurred in the secondary storage device or the network connected thereto in the state Ca.
  • the primary storage device fails to communicate with the secondary storage device and recognizes that the primary storage device is valid by accessing the quorum volume, the I / O request from the primary host and the secondary host continues. Process.
  • the primary volume is changed to a normal volume that is not a BM volume, and the I / O processing can be continued.
  • the state Cd indicates a state in which a failure has occurred in the quorum storage apparatus or the network connected thereto in the state Ca.
  • the secondary storage device is blocked to prevent data loss.
  • the primary storage apparatus fails to communicate with the quorum storage apparatus and succeeds in communication with the secondary storage apparatus
  • the primary storage apparatus continues to process I / O requests from the primary host and the secondary host.
  • the primary volume is changed to a normal volume that is not a BM volume, and the I / O processing can be continued.
  • the secondary storage device fails to communicate with the quorum storage device and succeeds in communication with the primary storage device, the secondary storage device continues to process I / O requests from the primary host and the secondary host. Good.
  • the state Ce is used by the primary storage device and the quorum storage device when a failure occurs in the quorum storage device or the network connected thereto in the state Cb, or a failure occurs in the primary storage device or the network connected thereto in the state Cd. Indicates a disabled state.
  • the secondary storage device is blocked when communication with the quorum storage device fails. As a result, the applications of the primary host and the secondary host cannot continue the business because there is no usable volume, but the data of the secondary volume immediately before the failure is maintained.
  • the state Cf is used by the secondary storage device and the quorum storage device when a failure occurs in the quorum storage device or the network connected thereto in the state Cc, or a failure occurs in the secondary storage device or the network connected thereto in the state Cd. Indicates a disabled state.
  • the primary storage device is blocked if communication with the quorum storage device fails and communication with the secondary storage device fails.
  • the application on the primary host and the secondary host cannot continue the business because there is no usable volume, but the data of the primary volume immediately before the failure is maintained.
  • the BM group can improve the availability compared to a single volume or a pair that does not use a quorum volume. Further, when a failure occurs in one storage device and the quorum storage device of the pair, the BM group stops the I / O processing, but the data of the other storage device of the pair can be maintained.
  • the BM group does not have to include a quorum volume.
  • FIG. 3 shows information stored in the management system computer 150.
  • the management server program 151 controls processing for allocating a normal volume or BM volume in the storage apparatus 100 to the host computer 130.
  • the management server program 151 displays a status display program 3004 for displaying the status of the operating storage apparatus 100 on the management client computer 160, a basic condition selection program 3001 for selecting a basic condition for volume allocation, and a normal volume allocation.
  • the normal volume allocation program 3003 selects a storage device selection process 3070 for selecting a storage device 100 for creating a volume, a volume selection process 3071 for selecting a volume, and a path configuration selection for selecting a path configuration between the host computer 130 and the volume.
  • the processing 3072 includes a volume preparation process 3010 for instructing the storage apparatus 100 to prepare a volume, and a path creation process 3020 for instructing the storage apparatus 100 to create a path.
  • the BM volume allocation program 3002 includes a primary site selection process 3030 for selecting a primary site setting, a secondary site selection process 3040 for selecting a secondary site setting, a quorum site selection process 3050 for selecting a quorum site setting, and a BM.
  • a configuration change process 3060 for instructing a plurality of storage apparatuses 100 to change the configuration of a group, and a bidirectional mirroring start process 3061 for instructing a plurality of storage apparatuses 100 to start bidirectional mirroring of a BM group are included.
  • the configuration information table 152 includes a storage device table 3110 for managing the storage device 100, a volume table 3120 for managing volumes in the storage device 100, and a bidirectional mirroring table 2200 for managing bidirectional mirroring. And a quorum volume table 2300 for managing the quorum volume.
  • FIG. 4 shows the volume table 1500.
  • the volume table 1500 has an entry for each volume.
  • One volume entry includes, as fields, a volume ID 1501, a parity group (PG) ID 1502, a pool ID 1503, and a total capacity (Total ⁇ Capacity) 1504.
  • the volume ID 1501 is an identifier indicating the volume.
  • the volume may be a logical volume to which a storage area in a parity group is allocated, or may be a virtual volume to which a storage area in a pool is allocated using thin provisioning.
  • the parity group ID 1502 is an identifier indicating a parity group assigned to the volume.
  • the pool ID 1503 is an identifier indicating a pool assigned to the volume.
  • a valid value is stored in one of the PG-ID 1502 and the pool ID 1503, and an invalid value (Null) is stored in the other field.
  • the total capacity 1504 indicates the capacity of the volume.
  • a pool ID 1503 indicates a pool ID 1601 in a pool table 1600 described later.
  • one volume entry may include information indicating whether or not the volume is assigned to the host computer 130.
  • FIG. 5 shows a pool table 1600.
  • the pool table 1600 has an entry for each pool.
  • One pool entry includes, as fields, a pool ID 1601, a storage device ID 1602, a RAID level 1603, a disk type 1604, and a pool volume ID 1605.
  • the pool ID 1601 is an identifier indicating the pool.
  • the storage device ID 1602 is an identifier indicating a storage device that stores the pool.
  • the RAID level 1603 indicates the RAID level of the parity group assigned to the pool.
  • the RAID level 1603 further indicates the number of data disks and the number of parity disks in the parity group.
  • the disk type 1604 indicates the type of disk constituting the parity group. For example, the disk type 1604 indicates one of SSD, SAS-HDD, and SATA-HDD.
  • the disk type 1604 may further indicate the type of SSD storage element, such as SLC or MLC, and the rotational speed [rpm] of the HDD.
  • the pool volume ID 1605 is an identifier indicating at least one volume assigned to the pool. This pool volume ID 1605 indicates the volume ID 1501 in the volume table 1500 described above. It should be noted that since a plurality of different types of logical volumes may be assigned to the pool or a plurality of tiers (storage tiers) may be set in the pool, the RAID level 1603 may indicate a plurality of RAID levels. Alternatively, the disk type 1604 may indicate a plurality of types.
  • FIG. 6 shows a bidirectional mirroring table 2200.
  • the bidirectional mirroring table 2200 has an entry for each pair of bidirectional mirroring.
  • One pair entry includes, as fields, a pair ID 2201, a primary storage device ID 2202, a primary volume ID 2203, a secondary storage device ID 2204, a secondary volume ID 2205, a quorum storage device ID 2206, a quorum volume ID 2207, and a mirror state 2208.
  • the pair ID 2201 is an identifier indicating the pair.
  • the primary storage device ID 2202 is an identifier indicating the primary storage device in the pair.
  • the primary volume ID 2203 is an identifier indicating the primary volume in the pair.
  • the secondary storage device ID 2204 is an identifier indicating the secondary storage device in the pair.
  • the secondary volume ID 2205 is an identifier indicating the secondary volume in the pair.
  • the quorum storage device ID 2206 is an identifier indicating the quorum storage device for the pair.
  • the quorum volume ID 2207 is an identifier indicating the quorum volume for the pair.
  • the mirror state 2208 indicates the state of the pair.
  • the mirror status 2208 indicates, for example, “Copying” indicating that the initial copy is being performed, “On Mirror” indicating that the status is the synchronization status, and the like.
  • Each of the primary volume ID 2203, the secondary volume ID 2205, and the quorum volume ID 2207 indicates the volume ID 1501 in the volume table 1500 described above.
  • FIG. 7 shows the Quorum volume table 2300.
  • the quorum volume table 2300 has an entry for each quorum volume that is a volume having the quorum function.
  • One quorum volume entry includes, as fields, a quorum volume ID 2301, a latest recognition date 2302, a primary storage device ID 2303, and a secondary storage device ID 2304.
  • the quorum volume ID 2301 is an identifier indicating the quorum volume.
  • the latest recognition date 2302 indicates the time of the latest response from the quorum volume.
  • the primary storage device ID 2303 is an identifier indicating the primary storage device that has received a response from the quorum volume at the time.
  • the secondary storage apparatus ID 2304 is an identifier indicating the primary storage apparatus that has received a response from the quorum volume at the time.
  • the quorum volume ID 2301 indicates the volume ID 1501 in the volume table 1500 described above. If either the primary storage device or the secondary storage device fails to communicate with the quorum volume due to a timeout or the like, an invalid value is stored in the latest recognition date 2302.
  • the configuration information table 152 may further include a storage table, a site table, a site connection table, a parity group table, an inter-storage path table, a host table, a host path table, and the like.
  • the storage table has an entry for each storage device.
  • the entry of one storage device includes a storage device ID that is an identifier indicating the storage device, a model name of the storage device, and a site ID that is an identifier indicating the site where the storage device is located.
  • the model name is associated with information indicating whether the BM group is supported.
  • the site table has an entry for each site.
  • One site entry includes the site ID of the site.
  • the site connection table has an entry for each set of two sites.
  • One set of entries includes two site IDs indicating the set and the distance between the two sites.
  • the distance may be a communication delay time.
  • the parity group table has an entry for each parity group.
  • One parity group entry includes a PG-ID that is an identifier indicating the parity group, a storage device ID of the storage device that includes the parity group, a RAID level of the parity group, and a disk that configures the parity group. Includes disk type and total capacity of the parity group.
  • the storage port table has an entry for each storage port provided in the storage apparatus and connected to the host computer or another storage apparatus.
  • One storage port entry includes a storage port ID that is an identifier indicating the storage port, a storage device ID of the storage device that includes the storage port, and an external port for the storage port to connect to another storage device. And an external port flag indicating whether or not.
  • the inter-storage path table has an entry for each path between storage devices.
  • a storage device uses a volume of another storage device via a path between storage devices
  • the storage device having the volume entity is set as the connection source
  • the storage device using the volume is set as the connection destination .
  • the connection source storage port is a non-external port
  • the connection destination storage port is an external port.
  • the entry of one path includes a connection source storage port ID indicating a connection source storage port and a connection destination storage port ID indicating a connection destination storage port.
  • the host table has an entry for each HBA (Host Bus Adapter) in the host computer.
  • One HBA entry includes a host ID that is an identifier indicating a host computer including the HBA, and the WWN of the HBA.
  • the host path table has an entry for each path between the host computer and the storage device.
  • the entry of one path includes a path ID that is an identifier indicating a path between the host computer and the storage device, a WWN of the connection destination host computer, a connection source storage port ID, and a connection source volume ID. .
  • the configuration information table 152 further stores information for each storage device model, information for each disk type, and the like.
  • the information for each model includes price, MTBR (Mean Time Between Repair), MTTR (Mean Time To Repair), whether to support BM volume, and the like.
  • the information for each disk type includes a price (unit price) per storage area of unit size.
  • the configuration information collection program 3090 acquires configuration information from a plurality of storage apparatuses 100 and a plurality of host computers 130, and stores the acquired configuration information in the memory 153 as a configuration information table 152.
  • the status display program 3004 displays information in the configuration information table 152 on the management client computer 160 or the like.
  • the BM volume allocation program 3003 stores the setting information of the BM group set immediately before in the memory 153 as the immediately previous setting information for each allocation destination host set in the past.
  • the immediately preceding setting information includes the assignment destination host, the assignment mode, the primary storage device, the secondary storage device, the quorum storage device, the primary pool that is the pool assigned to the primary volume, the secondary pool that is the pool assigned to the secondary volume, and the conditions of the primary pool Primary pool condition, secondary pool condition that is a secondary pool condition, primary host that is an allocation destination host to which a primary volume is allocated, a secondary host that is an allocation destination host to which a secondary volume is allocated, an allocation destination host in the primary storage device, and The storage port connected to the secondary storage device, the allocation destination host and the primary Storage port connected to the over-di device, indicating a path or the like between the BM group and allocation destination host.
  • BM group setting information that is most frequently set for the allocation destination host may be used.
  • the status display program 3004 starts the basic condition selection program 3001.
  • FIG. 8 shows the operation of the basic condition selection program 3001.
  • the basic condition selection program 3001 upon receiving a request for selecting a volume allocation destination host, acquires the host table from the configuration information table 152. Thereafter, in S1120, the basic condition selection program 3001 receives the information input by the administrator from the management client computer 160, and recognizes the host ID indicating the allocation destination host designated by the administrator from the received information. .
  • the basic condition selection program 3001 recognizes the number of volumes, which is the number of volumes input by the administrator, from the received information.
  • the basic condition selection program 3001 recognizes the volume capacity that is the capacity of each volume input by the administrator from the received information, and calculates the total volume capacity by multiplying the volume capacity by the number of volumes. To do.
  • the number of volumes may be set as an initial value or may not be displayed. When the number of volumes is 1, the basic condition selection program 3001 may use the volume capacity as the total volume capacity without using the number of volumes.
  • the basic condition selection program 3001 recognizes the allocation mode from the received information.
  • the allocation mode indicates whether the volume allocated to the allocation destination host is a normal volume or a BM volume. If there is immediately previous setting information corresponding to the allocation destination host, the basic condition selection program 3001 determines the allocation mode value indicated in the immediately preceding setting information as an initial value.
  • the basic condition selection program 3001 receives an operation for selecting an assignment mode by the administrator, the basic condition selection program 3001 recognizes the value designated by the administrator as the assignment mode.
  • the basic condition selection program 3001 determines whether or not the allocation mode is a BM volume. If it is determined that the allocation mode is not a BM volume (No), the basic condition selection program 3001 starts the normal volume allocation program 3003 in S1170 and ends this flow. If it is determined that the allocation mode is a BM volume (Yes), the basic condition selection program 3001 starts the BM volume allocation program 3002 in S1180 and ends this flow.
  • the administrator can assign the BM volume by setting the assignment destination host, the number of volumes, the volume capacity, and the like by common operations with the normal volume assignment. As a result, even an administrator who is not accustomed to BM volume allocation can easily allocate BM volumes.
  • the basic condition selection program 3001 may store the BM group assignment destination host, volume number, and volume capacity set immediately before in the configuration information table 152 as immediately preceding initial information. In this case, the basic condition selection program 3001 may input the immediately preceding initial information as initial values in the input fields for the assignment destination host, the number of volumes, and the volume capacity on the setting screen.
  • the BM volume allocation program 3002 When the BM volume allocation program 3002 is activated, it executes a primary site selection process 3030, a secondary site selection process 3040, a quorum site selection process 3050, a configuration change process 3060, and a bidirectional mirroring start process 3061 in order.
  • FIG. 9 shows the primary site selection process 3030.
  • the BM volume allocation program 3002 executes a primary storage device selection process for selecting a primary storage device. By determining the primary storage device, a primary site that is a site including the primary storage device is determined. Thereafter, in S1220, the BM volume allocation program 3002 executes a primary volume selection process for selecting a primary volume in the primary storage apparatus. Details of the primary storage device selection process and the primary volume selection process will be described later.
  • the BM volume allocation program 3002 acquires configuration information corresponding to the allocation destination host from the host table computer, the storage port table, and the host side path table.
  • the BM volume allocation program 3002 determines the primary host WWN in the immediately preceding setting information as the initial value of the primary host WWN, and the primary storage in the immediately preceding setting information.
  • the storage port ID of the device is determined as the initial value of the primary storage port ID, and the primary host WWN and primary storage port ID are displayed as information on the path between the primary host and the primary volume. If there is no such initial value, the BM volume allocation program 3002 may display that there is no appropriate initial value.
  • the BM volume allocation program 3002 receives an operation for selecting at least one of the primary host WWN and the primary storage port ID by the administrator, the configuration information corresponding to the allocation destination host in the configuration information table 152 Then, a primary host WWN candidate and a primary storage port candidate are selected, and a list of primary host WWN candidates and primary storage port candidates is displayed.
  • the BM volume allocation program 3002 determines the primary host WWN candidate specified by the administrator as the primary host WWN, and determines the primary storage port ID candidate specified by the administrator as the primary storage port ID.
  • the administrator's work can be reduced by determining the initial value based on the immediately preceding setting information corresponding to the assignment destination host.
  • FIG. 10 shows the primary storage device selection process S1210.
  • the BM volume allocation program 3002 acquires the storage table, pool table 1600, and volume table 1500 from the configuration information table 152.
  • the BM volume allocation program 3002 selects a target storage device in order from the storage device group in the storage table, and executes loop A of S1320 to S1340 for each target storage.
  • the BM volume allocation program 3002 recognizes the target storage device as a primary storage device candidate when the target storage device satisfies the primary storage device condition.
  • the primary storage device condition is that the target storage device supports the BM group (first primary storage device condition).
  • a plurality of conditions are determined in advance from the first primary storage device condition and the free area size of the pool in the target storage device being equal to or larger than the total volume capacity. Primary storage device conditions may be used.
  • the BM volume allocation program 3002 shifts the processing to S1350 when the loop A is executed for all the storage device groups.
  • the BM volume allocation program 3002 indicates the immediately preceding setting information corresponding to the allocation destination host, and if the primary storage device of the immediately preceding setting information is included in the primary storage device candidates, it is indicated in the immediately preceding setting information.
  • the primary storage device is determined as the initial value of the primary storage device, and the initial value is displayed. If there is no such initial value, the BM volume allocation program 3002 may display that there is no appropriate initial value.
  • the BM volume allocation program 3002 when the BM volume allocation program 3002 receives an operation for selecting a primary storage device by the administrator, the BM volume allocation program 3002 displays the primary storage device candidate, receives the primary storage device candidate designated by the administrator, and is designated.
  • the primary storage device candidate is determined as the primary storage device, and this flow ends.
  • the above is the primary storage device selection process.
  • FIG. 11 shows the primary volume selection process S1220.
  • the BM volume allocation program 3002 acquires the pool table 1600 and the volume table 1500 from the configuration information table 152.
  • the BM volume allocation program 3002 selects, from the volumes in the primary storage apparatus, a volume that has a capacity equal to the set volume capacity and is not allocated to the host computer 130 as an available volume. The total capacity of the usable volume is calculated as the usable volume capacity. Further, the BM volume allocation program 3002 calculates a created volume total capacity, which is a total capacity of a volume newly created from the pool, by subtracting the usable volume capacity from the set volume total capacity.
  • the BM volume allocation program 3002 selects a pool having a free area size larger than the total capacity of the created volume as a primary pool candidate from the pools in the primary storage apparatus. Note that the BM volume allocation program 3002 may use the total volume capacity as the created volume total capacity.
  • the BM volume allocation program 3002 determines the primary pool condition of the immediately preceding setting information as the initial value of the primary pool condition, and displays the initial value.
  • the primary pool condition is a condition of the pool characteristic of the primary volume.
  • the pool characteristics indicate I / O performance and redundancy of parity groups and disks registered in the pool, and include, for example, a RAID level and a disk type. If there is no such initial value, the BM volume allocation program 3002 may display that there is no appropriate initial value.
  • the BM volume allocation program 3002 receives an operation of selecting the primary pool condition by the administrator, the RAID level and the disk type of the primary pool candidate are displayed as the primary pool condition candidate, and the primary specified by the administrator is displayed.
  • a pool condition candidate is determined as a primary pool condition.
  • the BM volume allocation program 3002 selects a primary pool candidate that satisfies the primary pool condition as a suitable primary pool candidate. Further, the BM volume allocation program 3002 includes the primary pool indicated in the immediately preceding setting information as the primary pool when the immediately preceding setting information corresponding to the allocation destination host exists and the primary pool of the immediately preceding setting information is included in the compatible primary pool candidates. The initial value is determined, and the initial value is displayed. If there is no such initial value, the BM volume allocation program 3002 may display that there is no appropriate initial value.
  • the BM volume allocation program 3002 when the BM volume allocation program 3002 receives a request for selecting a primary pool by the administrator, the BM volume allocation program 3002 displays a list of compatible primary pool candidates, and receives the specification of the compatible primary pool candidates by the administrator.
  • a primary pool candidate is determined as a primary pool.
  • the BM volume allocation program 3002 determines a primary volume ID that is a volume ID of a primary volume newly created from the primary pool, and ends this flow.
  • the primary volume may be created from a pool, may be created from a parity group, or may be selected from created available volumes.
  • Information indicating whether to use a pool or a parity group for the primary volume and the secondary volume may be set by the administrator, or may be stored in the configuration information table 152 in advance. Further, this information may be included in the immediately preceding setting information, and the immediately preceding setting information may be set as an initial value.
  • the primary pool condition that is frequently used can be determined without being selected by the administrator. Thereby, an administrator's working time can be shortened.
  • BM volume allocation program 3002 executes secondary site selection processing 3040 after primary site selection processing 3030.
  • FIG. 12 shows the secondary site selection process 3040.
  • the BM volume allocation program 3002 executes secondary storage device selection processing for selecting a secondary storage device. By determining the secondary storage device, a secondary site that is a site including the secondary storage device is determined. Thereafter, in S1520, the BM volume allocation program 3002 executes a secondary volume selection process for selecting a secondary volume in the secondary storage apparatus. Details of the secondary storage device selection process and the secondary volume selection process will be described later.
  • the BM volume allocation program 3002 acquires configuration information corresponding to the allocation destination host from the host table computer, the storage port table, and the host side path table.
  • the BM volume allocation program 3002 determines the secondary host WWN in the immediately preceding setting information as the initial value of the secondary host WWN, and the secondary storage in the immediately preceding setting information.
  • the storage port ID of the device is determined as the initial value of the secondary storage port ID, and the secondary host WWN and secondary storage port ID are displayed as information on the path between the secondary host and the secondary volume. If there is no such initial value, the BM volume allocation program 3002 may display that there is no appropriate initial value.
  • the BM volume allocation program 3002 determines from the configuration information corresponding to the allocation destination host the secondary host WWN. A candidate and a secondary storage port candidate are selected, and a secondary host WWN candidate and a secondary storage port candidate are displayed.
  • the BM volume allocation program 3002 determines the secondary host WWN candidate specified by the administrator as the secondary host WWN, and determines the secondary storage port ID candidate specified by the administrator as the secondary storage port ID.
  • FIG. 13 shows the secondary storage device selection processing S1510.
  • the BM volume allocation program 3002 acquires the storage table, the pool table 1600, and the volume table 1500 from the configuration information table 152.
  • the BM volume allocation program 3002 sequentially selects the target storage device from the storage device group other than the primary storage device in the storage table, and executes the loop B of S1620 to S1640 for each target storage.
  • the BM volume allocation program 3002 recognizes the target storage device as a secondary storage device candidate when the target storage device satisfies the secondary storage device condition.
  • the secondary storage device condition is that the target storage device supports the BM group (first secondary storage device condition), and the path to the primary storage device is set in the target storage device (second secondary storage) Device conditions).
  • a plurality of conditions may be determined in advance from the following conditions, and the condition that the plurality of conditions may be satisfied may be used as the secondary storage device condition.
  • the first secondary storage device condition The second secondary storage device condition
  • the free area size of the pool in the target storage device is equal to or larger than the total volume capacity.
  • the target storage device is at a site other than the primary site.
  • the minimum throughput between the primary storage device and the target storage device is greater than or equal to a predetermined value.
  • the communication delay time between the primary storage device and the target storage device is not more than a predetermined value.
  • the BM volume allocation program 3002 may measure the communication delay time, or may predict the communication delay time based on the distance in the site connection table.
  • the BM volume allocation program 3002 shifts the processing to S1650 when the loop B is executed for all the storage device groups.
  • the BM volume allocation program 3002 indicates the immediately preceding setting information corresponding to the allocation destination host, and if the secondary storage device of the immediately preceding setting information is included in the secondary storage device candidates, it is indicated in the immediately preceding setting information.
  • the secondary storage device is determined as the initial value of the secondary storage device, and the initial value is displayed. If there is no such initial value, the BM volume allocation program 3002 may display that there is no appropriate initial value.
  • the BM volume allocation program 3002 when the BM volume allocation program 3002 receives an operation for selecting a secondary storage device by the administrator, the BM volume allocation program 3002 displays the secondary storage device candidate, receives the secondary storage device candidate designated by the administrator, and is designated.
  • the secondary storage device candidate is determined as the secondary storage device, and this flow is finished.
  • the above is the secondary storage device selection process.
  • the management system computer 150 selects the secondary storage device that can communicate with the primary storage device, thereby ensuring the reliability of bidirectional mirroring. Further, the management system computer 150 selects a secondary storage device located at a site different from the primary site, so that even if a large-scale disaster occurs, the possibility that the host computer 130 can continue operations, Increases the possibility of holding data. The performance of bidirectional mirroring can be guaranteed. In addition, the management system computer 150 selects the secondary storage device based on the communication result with the primary storage device, thereby ensuring the bi-directional mirroring performance.
  • FIG. 14 shows the secondary volume selection process S1520.
  • the BM volume allocation program 3002 acquires the pool table 1600 and the volume table 1500 from the configuration information table 152.
  • the BM volume allocation program 3002 selects, as an available volume, a volume having a capacity equal to the set volume capacity and not allocated to the host computer 130 from the volumes in the secondary storage device.
  • the total capacity of the usable volume is calculated as the usable volume capacity.
  • the BM volume allocation program 3002 calculates a created volume total capacity, which is a total capacity of a volume newly created from the pool, by subtracting the usable volume capacity from the set volume total capacity.
  • the BM volume allocation program 3002 selects a pool having a free area size equal to or greater than the total capacity of the created volume as a secondary pool candidate from the pools in the secondary storage apparatus.
  • the BM volume allocation program 3002 may use the total volume capacity as the created volume total capacity.
  • the BM volume allocation program 3002 has the immediately preceding setting information corresponding to the allocation destination host, and if the primary pool condition of the immediately preceding setting information is determined as the primary pool condition of the primary volume selection process, The secondary pool condition is determined as the initial value of the secondary pool condition, and the initial value is displayed.
  • the secondary pool condition is a condition of the pool characteristic of the secondary volume. If there is no such initial value, the BM volume allocation program 3002 may display that there is no appropriate initial value.
  • the BM volume allocation program 3002 receives the secondary pool condition selection operation by the administrator, displays the RAID level and disk type of the secondary pool candidate as the secondary pool condition candidate, and the secondary designated by the administrator.
  • a pool condition candidate is determined as a secondary pool condition.
  • the BM volume allocation program 3002 selects a secondary pool candidate that satisfies the secondary pool condition as a compatible secondary pool candidate. Further, the BM volume allocation program 3002 has the immediately preceding setting information corresponding to the allocation destination host, and if the secondary pool of the immediately preceding setting information is included in the compatible secondary pool candidates, the secondary pool indicated in the immediately preceding setting information is changed to the secondary pool. The initial value is determined, and the initial value is displayed. If there is no such initial value, the BM volume allocation program 3002 may display that there is no appropriate initial value.
  • the BM volume allocation program 3002 displays a list of suitable secondary pool candidates when receiving an operation for selecting a primary pool by the administrator, and receives a designation of compatible secondary pool candidates by the administrator.
  • a secondary pool candidate is determined as a secondary pool.
  • the BM volume allocation program 3002 determines the secondary volume ID that is the volume ID of the secondary volume newly created from the secondary pool, and ends this flow.
  • the secondary volume may be created from a pool, may be created from a parity group, or may be a usable volume.
  • the management system computer 150 can secure the number and capacity of volumes designated by the administrator by selecting a primary storage device, a secondary storage device, a primary pool, and a secondary pool based on the free space size.
  • BM volume allocation program 3002 executes Quorum site selection processing 3050 after secondary site selection processing 3040.
  • FIG. 15 shows a quorum site selection process 3050.
  • the BM volume allocation program 3002 acquires the Quorum volume table 2300 from the configuration information table 152.
  • the BM volume allocation program 3002 selects target Quorum volume candidates in order from the Quorum volume candidate group in the Quorum volume table 2300, and executes the loop C of S1820 to S1870 for each target Quorum volume candidate.
  • the BM volume allocation program 3002 recognizes the target quorum volume candidate as a suitable quorum volume candidate when the target quorum volume candidate satisfies the quorum volume condition.
  • the quorum volume condition is that the target quorum volume candidate is connected to both the primary storage apparatus and the secondary storage apparatus (first quorum volume condition). It should be noted that a quorum volume condition may be that a plurality of conditions are determined in advance from the following conditions, and that these conditions are satisfied.
  • -First Quorum volume condition The site including the target Quorum volume candidate is neither the primary site nor the secondary site. The communication for failure detection from the primary storage device and the secondary storage device to the target Quorum volume candidate has not timed out.
  • a quorum volume used for a pair when the primary volume and the secondary volume are similar to a pair set in the past.
  • the communication delay time between the primary storage device and the secondary storage device and the target quorum volume candidate is equal to or less than a predetermined value.
  • the BM volume allocation program 3002 may determine that the primary volume and the secondary volume are similar to the pair set in the past.
  • the BM volume allocation program 3002 may measure the communication delay time or may predict the communication delay time based on the distance in the site connection table.
  • the BM volume allocation program 3002 calculates the single occupancy rate and single unit price of the primary volume and the secondary volume, calculates the total occupancy rate and total price of the BM group by adding the qualified Quorum volume candidate to this pair, The amount of operation rate increase and the amount of price increase by adding the quorum volume candidate are calculated.
  • the BM volume allocation program 3002 acquires the MTBR and MTTR for the primary storage device, the secondary storage device, and the compatible quorum volume candidate storage device from the configuration information table 152, and the single storage device operation rate A1 of the primary storage device. Then, the stand-alone operation rate A2 of the secondary storage device and the stand-alone operation rate A3 of the storage device of the compatible Quorum volume candidate are calculated by the following equations.
  • A MTBR / (MTBR + MTTR)
  • the BM volume allocation program 3002 calculates the overall operating rate Aw and the operating rate increase ⁇ A of the BM group by the following equations.
  • Aw is a probability that the business can be continued, and is a probability that two or more storage devices among the primary storage device, the secondary storage device, and the quorum storage device are operating.
  • the BM volume allocation program 3002 acquires the storage device model price, disk type unit price, RAID level, and the like from the configuration information table 152 for each of the primary volume, secondary volume, and compatible quorum volume candidates. Based on the calculated values, the unit price C1 of the primary volume, the unit price C2 of the secondary volume, and the unit price C3 of the suitable quorum volume candidate are calculated. In this process, the unit price may be calculated from the price of the media used for the BM volume, or may be calculated by multiplying the price of the storage device model by the ratio of the capacity of the BM volume. May be. Furthermore, the BM volume allocation program 3002 calculates the sum of the unit prices C1, C2, and C3 as the total price.
  • the BM volume allocation program 3002 determines whether the operation rate increase amount is negative. When it is determined that the operation rate increase amount is not negative (No), the BM volume allocation program 3002 shifts the processing to S1870. If it is determined that the BM availability increase amount is negative (Yes), the BM volume allocation program 3002 deletes the compatible quorum volume candidate in S1860 and shifts the processing to S1870. As a result, it is possible to prevent the use of a quorum volume whose operating rate is not improved.
  • the Quorum volume condition may include an operation rate increase condition.
  • a condition for price increase may be included.
  • the BM volume allocation program 3002 sorts the compatible quorum volume candidates in descending order of the overall operation rate.
  • the BM volume allocation program 3002 indicates that the immediately preceding setting information corresponding to the allocation destination host is present and the Qualum volume of the immediately preceding setting information is included in the compatible Qualum volume candidates, the The determined quorum volume is determined as the initial value of the quorum volume, and the initial value is displayed.
  • a suitable quorum volume candidate having the highest overall operating rate is determined as an initial value of the quorum volume.
  • the BM volume allocation program 3002 displays a compatible quorum volume candidate list that is a list of compatible quorum volume candidates.
  • the conforming quorum volume candidate list has an entry for each conforming quorum volume candidate.
  • the entry for each suitable Quorum volume candidate includes the candidate ID, the overall operating rate when the candidate is used, and the overall price when the candidate is used.
  • the compatible Quorum volume candidate list is sorted in descending order of the overall operation rate.
  • the administrator receives the ID of the qualified quorum volume candidate specified from the qualified quorum volume candidate list by the administrator, determines the specified qualified quorum volume candidate as the quorum volume, and determines the storage device including the quorum volume as the quorum storage device Then, the site including the Quorum storage device is determined as the Quorum site, and this flow ends.
  • the management system computer 150 selects a Quorum volume that is located at a different site from the primary site and secondary site, and a failure occurs that affects the tens to hundreds of kilometers, such as a large-scale power outage or earthquake Even so, the possibility that the host computer 130 can continue the business increases.
  • the management system computer 150 selects a quorum volume based on the communication result with the primary storage device and the secondary storage device, the distance between the primary site, the secondary site, and the quorum site becomes too large and communication fails. Can be prevented.
  • the management system computer 150 displays the quorum volume set immediately before the allocation destination host or the quorum volume with the highest overall operation rate as an initial value, so that the administrator can appropriately perform the operation without taking any work time.
  • a quorum volume can be set.
  • the management system computer 150 uses the immediately previous setting information for the primary storage device, primary pool condition, secondary storage device, etc., thereby reducing the administrator's work. .
  • BM volume allocation program 3002 executes configuration change processing 3060 after Quorum site selection processing 3050.
  • FIG. 16 shows the configuration change process 3060.
  • the BM volume allocation program 3002 starts the volume preparation process 3010 for preparing the primary volume by designating the primary storage device and the primary volume in S2110.
  • the BM volume allocation program 3002 specifies the primary volume, the storage port of the primary storage device, and the WWN of the primary host, and starts an allocation process for allocating the primary volume to the primary host.
  • the BM volume allocation program 3002 starts the volume preparation process 3010 for preparing the secondary volume by designating the secondary storage device and the secondary volume in S2210.
  • the BM volume allocation program 3002 designates the secondary volume, the storage port of the secondary storage device, and the WWN of the secondary host, and starts an allocation process for allocating the secondary volume to the secondary host.
  • the above-described volume preparation processing 3010 requests the specified device to create the specified volume, and waits for a creation completion response.
  • the above allocation process requests the designated storage device to assign the designated volume to the storage port of the designated storage device, and waits for the completion of the assignment. Further, the allocation process requests the specified storage apparatus to allocate the specified WWN to the specified storage port, and waits for the completion of the allocation.
  • the BM volume allocation program 3002 executes a bidirectional mirroring start process 3061 for starting the bidirectional mirroring with the primary volume and the secondary volume as a pair after the configuration change process 3060.
  • the bidirectional mirroring start processing 3061 requests the primary storage device and the secondary storage device to pair with the primary volume and the secondary volume, specify that the quorum volume is used for the failure information, and request bidirectional mirroring. Wait for a response to complete acceptance.
  • the status display program 3004 displays the initial screen 4100 on the management client computer 160.
  • FIG. 17 shows a screen transition from the initial screen 4100 to the volume allocation screen 4200 when the basic condition selection program 3001 is executed.
  • the initial screen 4100 includes a status 4110 indicating the status of the storage device to be managed, a button 4120 for instructing volume allocation processing, a button 4130 for instructing pool creation processing, a button 4140 for instructing volume creation processing, A button 4150 for instructing file system creation processing, a button 4160 for instructing replication management processing, a button 4170 for instructing data migration processing, and the like are included.
  • the status display program 3004 starts the basic condition selection program 3001.
  • the basic condition selection program 3001 displays a volume allocation screen on the management client computer 160 and starts the volume allocation process.
  • the volume assignment screen 4200 includes a basic condition setting area 4201 for setting items common to the normal volume and the BM volume when the basic condition selection program 3001 is executed.
  • the basic condition setting area 4201 includes an allocation destination host selection button 4210 for starting selection of an allocation destination host, an allocation destination host display field 4220 for displaying the selected allocation destination host, and an allocation for selecting and displaying an allocation mode.
  • a mode selection field 4230, a volume number input field 4240, a volume capacity input field 4250, and a total volume capacity display field 4260 are included.
  • the allocation mode selection column 4230, the volume number input column 4240, and the volume capacity input column 4250 are invalid.
  • another GUI Graphic User Interface
  • the basic condition selection program 3001 displays the host selection screen 4300 on the management client computer 160.
  • FIG. 18 shows a pre-selection state of the host selection screen 4300 and a post-selection state of the host selection screen 4300.
  • the pre-selection state of the host selection screen 4300 includes an allocation destination host candidate list 4310 indicating a list of allocation destination host candidates that are host computers 130 registered in the host table, and an allocation destination host candidate for adding to the allocation destination host.
  • the host selection screen 4300 In the pre-selection state of the host selection screen 4300, when the assignment destination host candidate is selected from the assignment destination host candidate list 4310 and the add button 4320 is operated by the administrator, the host selection screen 4300 enters the post-selection state.
  • the basic condition selection program 3001 adds the selected allocation destination host candidate to the allocation destination host.
  • the allocation destination host list 4340 displays the allocation destination hosts.
  • the basic condition selection program 3001 closes the host selection screen 4300 and assigns the host computer registered in the assignment destination host list 4340 to the assignment destination. Select as host.
  • FIG. 19 shows a volume allocation screen 4200 at the time of primary storage device selection processing S1210.
  • the basic condition selection program 3001 displays the volume assignment screen 4200 and displays the assignment destination host ID in the assignment destination host display field 4220.
  • the basic condition selection program 3001 acquires the immediately preceding setting information corresponding to the allocation destination host from the configuration information table 152, and determines the allocation mode indicated in the immediately preceding setting information as the initial value of the allocation mode selection field 4230. To do. Further, the basic condition selection program 3001 enables the allocation mode selection field 4230, the volume number input field 4240, and the volume capacity input field 4250.
  • initial values of the allocation mode selection field 4230, the volume number input field 4240, and the volume capacity input field 4250 are determined in advance. Or an invalid value (blank).
  • the administrator can change the values of the allocation mode selection field 4230, the volume number input field 4240, and the volume capacity input field 4250 using the management client computer 160.
  • the BM volume allocation program 3002 displays, in the volume allocation screen 4200, in addition to the basic condition setting area 4201, a site setting area 4202 for displaying the setting of the primary site or secondary site, and setting of the primary site A primary site tab 4400 for starting and a secondary site tab 4500 for starting the setting of the secondary site are displayed.
  • the primary site tab 4400 is valid
  • the secondary site tab 4500 is invalid
  • the site setting area 4202 displays primary site setting information.
  • the site setting area 4202 at this time includes a primary storage device selection column 4410 for selecting a primary storage device.
  • the BM volume allocation program 3002 displays the ID of the primary storage apparatus indicated in the immediately preceding setting information corresponding to the allocation destination host as an initial value in the primary storage apparatus selection column 4410, for example.
  • the BM volume allocation program 3002 displays a list of primary storage device candidates.
  • the BM volume allocation program 3002 determines the selected primary storage device candidate as the primary storage device, and sets the primary storage device ID. Displayed in the primary storage device selection column 4410.
  • FIG. 20 shows a volume assignment screen 4200 at the time of primary volume selection processing S1220.
  • the BM volume allocation program 3002 displays in the site setting area 4202 a primary pool condition column 4430 for selecting a primary pool condition, a primary pool display column 4440 for displaying the primary pool, A primary pool selection button 4450 for selecting a pool, a primary volume selection button 4470 for selecting a primary volume, a primary host path display field 4480 for displaying information on a path between the primary host and the primary volume, and A primary host path edit button 4490 for editing path information is added.
  • the primary pool condition column 4430 includes a disk type selection column 4431 for selecting a disk type among primary pool conditions and a RAID level selection column 4433 for selecting a RAID level among primary pool conditions.
  • the initial value of the disk type selection column 4431 is, for example, the disk type of the immediately previous setting information.
  • the disk type selection field 4431 displays the disk type candidates and accepts the selection of the disk type by the administrator.
  • the initial value of the RAID level selection field 4433 is, for example, the RAID level of the immediately previous setting information.
  • the RAID level selection field 4433 displays RAID level candidates and accepts the selection of the RAID level by the administrator.
  • the BM volume allocation program 3002 displays the ID of the primary pool satisfying the primary pool condition in the primary pool display field 4440.
  • the BM volume allocation program 3002 displays a pool selection screen 4700.
  • FIG. 21 shows a pool selection screen 4700.
  • the pool selection screen 4700 includes a compatible primary pool candidate list 4710 that is a list of compatible primary pool candidates, an OK button 4720 for completing the selection of the primary pool, and a Cancel button 4730 for canceling the selection of the primary pool. Including.
  • the BM volume allocation program 3002 closes the pool selection screen 4700 and selects the selected compatible primary pool.
  • the pool candidate is determined as the primary pool, and the ID of the determined primary pool is displayed in the primary pool display field 4440.
  • the BM volume allocation program 3002 displays primary volume candidates that are already created volumes that satisfy the primary pool condition in the same manner as the pool selection screen. Accept selection of primary volume.
  • the BM volume allocation program 3002 displays the WWN of the primary host and the storage port ID of the primary storage device in the immediately preceding setting information as initial values in the primary host path display field 4480, for example.
  • the primary host path edit button 4490 is operated by the administrator, the BM volume allocation program 3002 displays the WWN of the primary host and the storage port ID candidates of the primary storage device based on the configuration information table 152, and the administrator The editing of the primary host path display field 4480 is accepted.
  • the BM volume allocation program 3002 When all values in the site setting area 4202 are determined, the BM volume allocation program 3002 enables the secondary site tab 4500. When the administrator operates the secondary site tab 4500, the BM volume allocation program 3002 changes the content displayed in the site setting area 4202 from the primary site setting information to the secondary site setting information.
  • FIG. 22 shows a volume assignment screen 4200 at the time of secondary storage device selection processing S1510.
  • the site setting area 4202 at this time includes a secondary storage device selection column 4510 for selecting a primary storage device.
  • the BM volume allocation program 3002 is, for example, the secondary storage device indicated in the immediately preceding setting information corresponding to the allocation destination host in the same manner as the primary site setting information. Is displayed in the secondary storage device selection field 4261 as an initial value.
  • the BM volume allocation program 3002 displays a list of secondary storage device candidates. When one secondary storage device candidate is selected from the list of secondary storage device candidates by the administrator, the BM volume allocation program 3002 determines the selected secondary storage device candidate as the secondary storage device, and sets the ID of the secondary storage device. This is displayed in the secondary storage device selection column 4510.
  • FIG. 23 shows a volume assignment screen 4200 at the time of secondary volume selection processing S1520.
  • the BM volume allocation program 3002 displays in the site setting area 4202 a secondary pool condition column 4530 for selecting a secondary pool condition, a secondary pool display column 4540 for displaying the secondary pool, A secondary pool selection button 4550 for selecting a pool, a secondary volume selection button 4570 for selecting a secondary volume, a secondary host path display field 4580 for displaying information on a path between the secondary host and the secondary volume, and A secondary host path edit button 4590 for editing path information is added.
  • the secondary pool condition column 4530 includes a disk type selection column 4531 for selecting a disk type among the secondary pool conditions and a RAID level selection column 4533 for selecting a RAID level among the secondary pool conditions.
  • each part of the site setting area 4202 is the same as the operation of each part for the setting information of the primary site.
  • the initial value of the disk type selection column 4531 is, for example, the disk type of the primary pool condition
  • the initial value of the RAID level selection column 4533 is, for example, the RAID level of the primary pool condition.
  • the BM volume allocation program 3002 determines the secondary pool using the pool selection screen 4700 in the same manner as the primary pool.
  • the BM volume allocation program 3002 displays, for example, the WWN of the secondary host and the storage port ID of the secondary storage device in the immediately previous setting information in the secondary host path display field 4580 as initial values.
  • the secondary host path edit button 4490 is operated by the administrator, the BM volume allocation program 3002 displays the WWN of the secondary host and the storage port ID candidates of the secondary storage device based on the configuration information table 152, and the administrator The editing of the secondary host path display field 4580 is accepted.
  • the BM volume allocation program 3002 displays a quorum site setting area 4204 for setting a quorum volume.
  • FIG. 24 shows a volume assignment screen 4200 at the time of the Quorum site selection process 3050.
  • the quorum site setting area 4204 includes a quorum volume display field 4810 for displaying the quorum volume, and a quorum volume selection button 4820 for selecting the quorum volume.
  • the initial value of the quorum volume display field 4810 is, for example, the quorum volume ID indicated in the immediately previous setting information.
  • the BM volume allocation program 3002 displays a list of quorum volume candidates.
  • the BM volume allocation program 3002 determines the selected quorum volume candidate as the quorum volume, and the quorum volume ID is displayed in the quorum volume display field 4810. To display.
  • the BM volume allocation program 3002 displays a confirmation button 4205 for confirming the setting of the BM volume and a cancel button 4206 for canceling the setting of the BM volume.
  • the BM volume allocation program 3002 displays a list of setting values determined on the volume allocation screen 4200, and when the confirmation operation is performed by the administrator, the configuration change processing is performed. move on.
  • the administrator can input the basic condition of the BM volume by the same operation as that for the normal volume.
  • the site setting area 4202 first displays the setting information of the primary site, and after the setting of the primary site is completed, the screen can be used effectively by switching the setting information of the primary site to the setting information of the secondary site. . Further, by disabling the secondary site tab 4500 and displaying that the setting of the primary site is not completed, the administrator can prevent input omission and input in an appropriate order. Thereby, the BM volume allocation program 3002 can determine the setting information of the secondary site based on the setting information of the primary site.
  • FIG. 25 shows components selected by the basic condition selection program 3001.
  • the basic condition selection program 3001 accepts two allocation destination hosts (Ha) selected by the administrator from the host computers 130 in the plurality of sites 140.
  • Ha allocation destination hosts
  • This example shows the case where two allocation destination hosts are selected from two sites, respectively, but only one allocation destination host may be selected, or multiple allocation destination hosts are selected from one site. Also good.
  • the volume number and volume capacity of the BM volume are determined.
  • FIG. 26 shows components selected by the primary storage apparatus selection processing S1210.
  • a plurality of primary storage device candidates are selected from a plurality of sites 140 based on the number of volumes, volume capacity, and configuration information table 152 and displayed.
  • the primary storage device selection process receives one primary storage device (Ap) selected by the administrator from a plurality of primary storage device candidates. Further, in the primary storage device selection process, a site including the primary storage device is selected as a primary site (Sp), and an allocation destination host in the primary site is selected as a primary host (Hp).
  • FIG. 27 shows components selected by the primary volume selection process S1220.
  • the primary volume selection process selects and displays a plurality of suitable primary pool candidates (Ppc) from the primary storage device based on the number of volumes, volume capacity, and first pool conditions.
  • the primary volume selection process accepts one primary pool (Pp) selected by the administrator from a plurality of compatible primary pool candidates.
  • Pp primary pool
  • an existing volume in the primary storage apparatus may be accepted as a primary volume instead of accepting a primary pool.
  • FIG. 28 shows components selected by the secondary storage device selection processing S1510.
  • the secondary storage device selection process selects and displays a plurality of secondary storage device candidates (Asc) from sites other than the primary site based on the number of volumes, volume capacity, and configuration information table 152.
  • the secondary storage device selection process accepts one secondary storage device (As) selected by the administrator from a plurality of secondary storage device candidates. Further, in the secondary storage device selection process, a site including the secondary storage device is selected as the secondary site (Ss), and the allocation destination host in the secondary site is selected as the secondary host (Hs).
  • FIG. 29 shows components selected by the secondary volume selection processing S1520.
  • the secondary volume selection process selects and displays a plurality of suitable secondary pool candidates (Psc) from within the secondary storage device based on the number of volumes, volume capacity, and second pool conditions.
  • the secondary volume selection process accepts one secondary pool (Ps) selected by the administrator from a plurality of compatible secondary pool candidates. Note that the secondary volume selection process may accept an existing volume in the secondary storage device as a secondary volume instead of accepting a secondary pool.
  • FIG. 30 shows components selected by the Quorum site selection process 3050.
  • the Quorum site selection process selects and displays a plurality of Quorum volume candidates (Vqc) from sites other than the primary site and the secondary site.
  • the quorum site selection process accepts one quorum volume (Vq) selected by the administrator from a plurality of quorum volume candidates. Further, the quorum site selection process selects a storage device including the quorum volume as the quorum storage device (Aq), and selects a site including the quorum storage device as the quorum site (Sq).
  • the Quorum site may include any of primary hosts, secondary hosts, primary volumes, and secondary volumes of other BM groups.
  • FIG. 31 shows components set by the configuration change process 3060 and the bidirectional mirroring start process 3061.
  • the primary storage device creates two primary volumes (Vp1, Vp2) from the primary pool, and the secondary storage device creates two secondary volumes (Vs1, Vs2) from the secondary pool.
  • the configuration change process creates a path between two allocation destination hosts and the four created volumes.
  • two pairs (Vp1 and Vs1 pair, Vp2 and Vs2 pair) using the quorum volume are created using the created volume, and bidirectional mirroring is started in these two pairs. .
  • the volume allocation process the burden on the administrator when the number of sites, the number of storage devices, and the number of volumes is large can be reduced.
  • the BM volume allocation program 3002 sets an initial value for setting items such as a primary storage device, a primary pool condition, a secondary storage device, a secondary pool condition, and a quorum volume without waiting for an operation by an administrator. Items may be determined. Further, the BM volume allocation program 3002 may display a list of determined setting items, request confirmation from the administrator, and perform configuration change processing and bidirectional mirroring start processing according to the confirmation operation by the administrator. . In this process, the BM volume allocation program 3002 may select an initial value candidate based on the immediately previous setting information, or may select a candidate having the highest predetermined evaluation value. The evaluation value may be, for example, the throughput between the primary storage device and the secondary storage device.
  • the storage device the storage device 100 or the like may be used.
  • a management computer a management system computer 150, a management system 170, or the like may be used.
  • a management client computer 160, a display device, or the like may be used.
  • the host computer the host computer 130 or the like may be used.
  • a primary storage device candidate or the like may be used as the first storage device candidate.
  • a primary storage device or the like may be used as the first storage device.
  • a secondary storage device candidate or the like may be used as the second storage device candidate.
  • a secondary storage device or the like may be used as the second storage device.
  • a primary volume or the like may be used as the first volume.
  • a secondary volume or the like may be used as the second volume.
  • a primary pool condition or the like may be used as the first pool.
  • a primary pool or the like may be used as the first pool.
  • a secondary pool condition or the like may be used as the second pool.
  • a primary site or the like may be used as the first site.
  • a secondary site or the like may be used as the second site.
  • the overall operating rate or the like may be used as the operating rate of the pair when the Quorum volume is used.
  • As the set information previous setting information or the like may be used.
  • An allocation mode selection field 4230 or the like may be used as a GUI for designating whether or not a volume to be allocated performs bidirectional mirroring.

Abstract

L'invention facilite l'attribution de volumes dans un système hautement disponible. Un ordinateur de gestion reçoit une désignation d'un ordinateur hôte auquel un volume doit être attribué, et une désignation de la capacité du volume ; sélectionne, en tant que candidat à un premier dispositif de stockage, un dispositif de stockage qui peut communiquer avec l'ordinateur hôte désigné et fournir un volume ayant la capacité désignée ; amène un dispositif à afficher le dispositif de stockage sélectionné ; reçoit une désignation du premier dispositif de stockage ; sélectionne, en tant que candidat à un second dispositif de stockage, un dispositif de stockage qui peut communiquer avec l'ordinateur hôte désigné et le premier dispositif de stockage et peut fournir un volume ayant la capacité désignée ; amène le dispositif d'affichage à afficher le dispositif de stockage sélectionné ; reçoit une désignation du second dispositif de stockage ; et ordonne au premier dispositif de stockage et au second dispositif de stockage de démarrer une écriture miroir bidirectionnelle.
PCT/JP2014/069781 2014-07-28 2014-07-28 Système informatique et programme de gestion WO2016016920A1 (fr)

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004246852A (ja) * 2002-12-20 2004-09-02 Hitachi Ltd 論理ボリュームコピー先性能調整方法及び装置
JP2006099309A (ja) * 2004-09-29 2006-04-13 Hitachi Ltd 計算機システムの構成管理方法
JP2010128899A (ja) * 2008-11-28 2010-06-10 Hitachi Ltd 情報処理システム、情報処理システムにおける制御方法、および、管理装置
JP2011039803A (ja) * 2009-08-12 2011-02-24 Hitachi Ltd ストレージシステムの容量を管理する管理計算機及びストレージシステムの容量管理方法
WO2012014329A1 (fr) * 2010-07-27 2012-02-02 株式会社日立製作所 Groupe de systèmes de stockage contenant un système de stockage du type à réduction d'échelle et son procédé de gestion

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004246852A (ja) * 2002-12-20 2004-09-02 Hitachi Ltd 論理ボリュームコピー先性能調整方法及び装置
JP2006099309A (ja) * 2004-09-29 2006-04-13 Hitachi Ltd 計算機システムの構成管理方法
JP2010128899A (ja) * 2008-11-28 2010-06-10 Hitachi Ltd 情報処理システム、情報処理システムにおける制御方法、および、管理装置
JP2011039803A (ja) * 2009-08-12 2011-02-24 Hitachi Ltd ストレージシステムの容量を管理する管理計算機及びストレージシステムの容量管理方法
WO2012014329A1 (fr) * 2010-07-27 2012-02-02 株式会社日立製作所 Groupe de systèmes de stockage contenant un système de stockage du type à réduction d'échelle et son procédé de gestion

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