JP2008171134A - Storage system, control method therefor, and storage device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a storage system, a control method therefor, and a storage device, which suppress rotation/stop of a magnetic disk device by power on/off control to a necessary minimum, stop the rotation of the magnetic disk device instantly without standby time and without affecting the life of the magnetic disk device, and can achieve efficient electric power saving. <P>SOLUTION: A power source management means 402 provided in a management server 400 is equipped with: a means for indicating power-off/on for host computers 300, 302, 304; and a means for indicating stop/rotation of physical storage devices D11 to Dmn constituting logical disks 220, 222, 224, 226, 228 assigned to the host computers 300, 302, 304 for a storage device 100. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a storage system, a storage system control method, and a storage apparatus, and in particular, power saving is achieved by stopping / rotating a physical storage device in the storage apparatus when the host computer is turned off / on. The present invention relates to a storage system, a storage system control method, and a storage apparatus.

  In recent years, environmental problems tend to attract attention and be emphasized on a global scale, and an increasing number of users select information processing devices that take into account the impact on the environment. For this reason, in addition to high functionality and low cost, storage systems have become an important factor in energy saving.

  As a general power control means for reducing power consumption of the storage system and reducing operation costs, the power of the host device and the power of the storage device accessed by the host device are linked to stop power There is a method to do the input.

  However, when the storage device is accessed from a plurality of higher-level devices, even if the power supply of a certain higher-level device is stopped, the power supply of the entire storage device cannot be stopped because there is an access from other higher-level devices.

  Therefore, it is possible to reduce the operation time of the magnetic disk device by stopping the operation of the magnetic disk device that is not accessed from the host device, to reduce power consumption, and to target the magnetic disk device that is not accessed from the host device. Therefore, there is one that enables energy saving while suppressing a significant performance degradation of the disk array device (for example, see Patent Document 1).

  The technique disclosed in Patent Document 1 includes means for controlling the relationship between the configuration of a plurality of magnetic disk devices and access from a host device, means for controlling power saving of a magnetic disk device in a set logical drive, Means for controlling the diagnosis. After a predetermined time elapses when access to a predetermined magnetic disk device is lost, a transition is made to the power saving mode or the power is turned off. The magnetic disk device subjected to the power saving process executes diagnosis after a predetermined time has elapsed from the start of the power saving process or when a designated time has come.

  In some cases, the operating time and the total on-time of the magnetic disk device constituting the disk array device are extended to reduce the power consumption of the disk array device (for example, see Patent Document 2).

  The technology of Patent Document 2 includes disk control instruction means for instructing a disk array device to turn on / off the power supply of a specific magnetic disk device by the host device, and the disk array device has a power supply from the host device to the magnetic disk device. And a means for turning on / off the power supply of the magnetic disk device corresponding to the logical unit designated by the host device.

JP 2000-293314 A JP 2005-157710 A

  The technique disclosed in Patent Document 1 stops the rotation of a magnetic disk device that has not been accessed from the host device for a certain period of time, and rotates the magnetic disk device upon detecting access from the host device to the magnetic disk device.

  Therefore, the above technology. If the monitoring time until the rotation of the magnetic disk device is stopped is too short, if the host device accesses the magnetic disk device at irregular intervals, the magnetic disk device will be repeatedly rotated and stopped frequently, resulting in an increase in the life of the magnetic disk device. Will have an impact.

  On the other hand, if the monitoring time until the rotation of the magnetic disk device is stopped is too long, the power supply of the host device that accesses the magnetic disk device stops, and even if there is no apparent access to the magnetic disk device, the magnetic disk device There is a problem that efficient power saving cannot be performed because it is necessary to wait for a set time until the rotation of the motor stops.

  In the technique of Patent Document 2, the host device gives an instruction to turn on / off the power supply of a specific magnetic disk device to the disk array device, and the disk array device powers the magnetic disk device corresponding to the logical unit designated by the host device. Turn on / off.

  However, when the disk array device constructs a plurality of logical disks on one disk pool and configures a plurality of upper-level logical disks on the same disk pool, the magnetic disk device corresponding to the logical unit There are cases in which the instruction to turn on / off the power supply differs among a plurality of higher-level devices. Therefore, the disk array device has a problem that it cannot control to turn on / off the power of the magnetic disk device.

  The object of the present invention is to minimize the rotation and stop of the magnetic disk device by turning on / off the power supply, and to stop the rotation of the magnetic disk device instantaneously without waiting time, thereby extending the life of the magnetic disk device. It is an object of the present invention to provide a storage system, a storage system control method, and a storage apparatus that can achieve efficient power saving without affecting the storage system.

  In order to achieve the above object, the storage system of the present invention associates the host computer (host device) with the magnetic disk device accessed by the host computer, and coordinates the power control of the host computer and the operation control of the magnetic disk device. Provide means for

  The storage system of the present invention is managed in a storage system having a storage device that records and reproduces information, a plurality of host computers that access logical disks in the storage device, and a management server that manages the storage devices and host computers. The server has power management means comprising power stop / on instruction means for the host computer and stop / rotation instruction means for the physical storage device constituting the logical disk allocated to the host computer for the storage apparatus. To do.

  The storage apparatus is characterized by having means for associating the host computer, logical disk, and physical storage device, and means for storing the power status of the host computer and the operating status of the physical storage device.

  The storage apparatus comprises means for configuring a plurality of disk pools, which are virtual storage media, by redundancy from a plurality of physical storage apparatuses, and means for configuring one or more logical disks on the disk pool. .

  The storage system corresponds to the host information table that stores the power status, identification number, and logical disk number assigned to the host computer, the logical disk number, and the disk pool number that builds the logical disk. Logical disk information table to be stored, disk pool number table, logical disk number, disk pool information table for storing and associating the physical storage device number for constructing the disk pool, physical storage device number and operational status And a physical storage device information table for storing.

  In addition to the disk pool number, logical disk number, and physical storage device number, the disk pool information table records the stop time that records the time when the physical storage devices that make up the disk pool stop, and the physical storage device stops. And a test start time for recording the time from the start of the test until the start of the test for the presence or absence of a failure of the physical storage device.

  The storage device includes a physical storage device inspection unit for inspecting whether or not a physical storage device has failed, a physical storage device operation control unit for controlling an operation state of the physical storage device, a host information table, a logical disk information table, and a disk. Table management means for managing the pool information table and the physical storage device information table, an instruction from the power management means or a request from the physical storage device inspection means, and an instruction to the table management means and the physical storage device operation control means And operating state management means for transmitting.

  The operating state management means includes means for determining whether the operating state of the physical storage device is stopped or rotating and instructing stop / rotation of the physical storage device.

  A storage system control method according to the present invention includes a storage apparatus that records and reproduces information, a plurality of host computers that access logical disks in the storage apparatus, and a management server that manages the storage apparatuses and host computers. In this control method, the management server instructs the power management means to stop / turn on the power to the host computer, and stop / rotate the physical storage device constituting the logical disk allocated to the host computer for the storage device. And a step of giving an instruction.

  The storage apparatus includes a step of associating a host computer, a logical disk, and a physical storage device, and a step of storing a power state of the host computer and an operating state of the physical storage device.

  The storage apparatus includes a step of configuring a plurality of disk pools, which are virtual storage media, by redundancy from a plurality of physical storage devices, and a step of configuring one or more logical disks on the disk pool. .

  The storage device stores the host computer power status, identification number, and logical disk number assigned to the host computer in the host information table, the logical disk number, and the number of the disk pool in which the logical disk is constructed. Storing in the association logical disk information table, storing the disk pool number, logical disk number, and physical storage device number for constructing the disk pool in the association disk pool information table, and physical storage device And a step of storing the number and the operating state in the physical storage device information table.

  In addition to the disk pool number, the logical disk number, and the physical storage device number, a step of storing the stop time as the stop time of the physical storage device that constitutes the disk pool in the disk pool information table; And a step of storing, as a test start time, a time from when the test is stopped until the test for the presence or absence of a failure of the physical storage device is started.

  A step in which the storage device inspects the physical storage device for failure by the physical storage device inspection means; a step in which the physical storage device operation control means controls the operating state of the physical storage device; a host information table and a logical disk information table Managing the disk pool information table and the physical storage device information table by the table management means, and receiving an instruction from the power management means or a request from the physical storage device inspection means by the operating state management means, And a step of transmitting an instruction to the storage device operation control means.

  The operating state management means includes a step of determining whether the operating state of the physical storage device is stopped or rotating, and a step of instructing stop / rotation of the physical storage device.

  The storage apparatus according to the present invention is connected to a management server and a plurality of host computers that access a logical disk allocated to the host computer, and records and reproduces information, and a plurality of disk pools that are virtual storage media. A means for configuring the physical storage device in a redundant manner, a means for configuring one or more logical disks on the disk pool, a host computer, a logical disk, and a physical storage device constituting the logical disk, and Table storage means for recording the power state of the host computer and the operating state of the physical storage device, and the management server provides a power stop / on instruction means for the host computer and the stop / rotation of the physical storage device of the storage device. And a power management unit including an instruction unit.

  The table storage means includes a host information table for storing the power status and identification number of the host computer and the number of the logical disk assigned to the host computer, the number of the logical disk, and the number of the disk pool in which the logical disk is constructed. Logical disk information table to be stored in association with each other, disk pool information table to store the disk pool number, logical disk number, and physical storage device number that constructs the disk pool in association with each other, physical storage device number, and operation status And a physical storage device information table.

  In addition to the disk pool number, logical disk number, and physical storage device number, the disk pool information table records the stop time that records the time when the physical storage devices that make up the disk pool stop, and the physical storage device stops. And a test start time for recording the time from the start of the test until the start of the test for the presence or absence of a failure of the physical storage device.

  Physical storage device inspection means for inspecting whether there is a failure in the physical storage device, physical storage device operation control means for controlling the operating state of the physical storage device, table management means for managing the table storage means, and power management means And operating state management means for receiving a request from the physical storage device checking means and transmitting instructions to the table management means and the physical storage device operation control means.

  The operating state management means includes means for determining whether the operating state of the physical storage device is stopped or rotating and instructing stop / rotation of the physical storage device.

  The storage system, the storage system control method, and the storage apparatus of the present invention have the effects that efficient power saving can be achieved and the operation cost can be reduced.

  This is because the host computer and the magnetic disk device accessed by the host computer are associated with each other, and power management means for linking the power control of the host computer and the operation control of the magnetic disk device is provided.

  Next, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

  FIG. 1 is a schematic block diagram showing a storage system 10 of the present invention.

  Referring to FIG. 1, the storage system 10 includes a storage apparatus 100, host computers 300, 302, and 304, and a management server 400 connected to the storage apparatus 100 and the host computers 300, 302, and 304.

  The management server 400 includes power management means 402 that requests the host computers 300, 302, and 304 to stop or turn on the power, and requests the storage apparatus 100 to stop or rotate the physical storage devices D11 to Dmn. .

  The host computers 300, 302, and 304 receive a power stop or power-on request from the power management unit 402, stop power or turn on the power, and return a power stop completion or power-on completion report to the management server 400. Is provided.

  The storage apparatus 100 includes a physical storage device group 240 and configures disk pools 200, 202, and 204 that are virtual storage media from the physical storage device group 240. The disk pool 200 constructs a logical disk 220, the disk pool 202 constructs logical disks 222 and 224, and the disk pool 204 constructs logical disks 226 and 228. The constructed logical disks 220, 222, 224, 226, and 228 are allocated to the host computers 300, 302, and 304 as virtual storage media that can be accessed from the host computers 300, 302, and 304. The physical storage device group 240 includes m × n physical storage devices D11 to Dmn (where m and n are positive integers of 2 or more).

  In addition, the storage apparatus 100 includes a physical storage device inspection unit 110 that inspects whether there is a failure in the physical storage device group 240, a physical storage device operation control unit 150 that controls the operating state of the physical storage device group 240, and a table storage unit. 13, a table management unit 130 that manages the table storage unit 13, and an operation state management unit 120.

  The table storage means 13 includes a host information table 132, a logical disk information table 134, a disk pool information table 136, and a physical storage device information table 138.

  The table storage unit 13 corresponds to the host computers 300, 302, and 304, the logical disks 220, 222, 224, 226, and 228 and the physical storage device group 240 that constitutes the logical disks 220, 222, 224, 226, and 228. In addition, the power status of the host computers 300, 302, and 304 and the operating status of the physical storage device group 240 are stored.

  The operating state management unit 120 is configured to receive an instruction from the power management unit 402 or a request from the physical storage device inspection unit 110 and transmit the instruction to the table management unit 130 and the physical storage device operation control unit 150. The operating state management unit 120 determines whether the operating state of the physical storage device group 240 is stopped or rotated, and instructs to stop / rotate the operation of the physical storage device group 240.

  Next, details of the table storage means 13 will be described with reference to FIGS. 2 (a) to 2 (d).

  2A shows the host information table 132, FIG. 2B shows the logical disk information table 134, FIG. 2C shows the disk pool information table 136, and FIG. 2D shows the physical storage device information table. 138 is a diagram for explaining 138. FIG.

  Referring to FIG. 2A, the host information table 132 includes a host number 1321 that is an identification number of the host computers 300, 302, and 304, and a host that indicates the power-on / stop state of the host computers 300, 302, and 304. A power state 1322 and a logical disk number 1323 which is an identification number of the logical disks 220, 222, 224, 226 and 228 assigned to the host computers 300, 302 and 304. A plurality of logical disk numbers 1323 can be set for one host number 1321.

  Referring to FIG. 2B, the logical disk information table 134 is the identification number of the logical disk number 1323 and the disk pools 200, 202, and 204 constructing the logical disks 220, 222, 224, 226, and 228. A disk pool number 1341.

  Referring to FIG. 2C, the disk pool information table 136 includes a disk pool number 1341, a logical disk number 1323, and physical numbers that are identification numbers of the physical storage devices D11 to Dmn that construct the disk pools 200, 202, and 204. The storage device number 1361, the stop time 1362 for recording the time when the physical storage devices D11 to Dmn constituting the disk pools 200, 202, and 204 stop, and the physical storage devices D11 to Dmn after the physical storage devices D11 to Dmn stop And an inspection start time 1363 for recording a time until an inspection for the presence or absence of a failure of Dmn is started. A plurality of logical disk numbers 1323 and a plurality of physical storage device numbers 1361 can be set for one disk pool number 1341.

  Referring to FIG. 2D, the physical storage device information table 138 includes a physical storage device number 1361 and a physical storage device operating state 1381 indicating the rotation / stop state of the physical storage devices D11 to Dmn.

  Next, the operation of the storage system 10 configured as described above will be described with reference to the drawings.

  FIG. 3 is a flowchart showing the operation of the power management unit 402 when the host computer 300, 302, 304 is powered off.

  Referring to FIG. 3, the power management unit 402 on the management server 400 controls power stop of the host computers 300, 302, and 304. First, upon receiving a power stop instruction from an operator or the like, the power management unit 402 transmits a power stop request for stopping power to the host computers 300, 302, and 304 (S10).

  Receiving the power stop request, the host computers 300, 302, and 304 perform processing for shutting down an OS (Operating System), processing for completing processing during I / O (Input / Output), and the like. At the end of the OS, the host computers 300, 302, and 304 report a shutdown completion to the power management unit 402 (S11).

  Upon receiving this report, the power management unit 402 reports the host number 1321 that is information for identifying the host computers 300, 302, and 304 that have stopped power supply to the operating state management unit 120, and the host computer 300 , 302, 304 are requested to stop the physical storage devices D11-Dmn constituting the logical disks 220, 222, 224, 226, 228 (S12).

  Next, the operation of the operating state management unit 120 will be described with reference to the drawings.

  FIG. 4 is a flowchart showing the operation of the operating state management unit 120.

  The operating state management unit 120 includes the host number 1321 of the host computers 300, 302, and 304 whose power is stopped from the power management unit 402 in the above (S12), and the logical disk 220 assigned to the host computers 300, 302, and 304. It operates by receiving an instruction to stop the physical storage devices D11 to Dmn constituting 222, 224, 226, and 228.

  Referring to FIG. 4, first, the operation state management unit 120 receives a host number 1321 for stopping power and an instruction to stop the physical storage devices D11 to Dmn constituting the logical disks 220, 222, 224, 226, and 228. The host number 1321 is reported to the table management unit 130. The table management unit 130 records that the host power supply state 1322 corresponding to the host number 1321 in the host information table 132 is a power supply stop state. The operating state management unit 120 is a physical storage device that can be stopped among the physical storage devices D11 to Dmn that constitute the logical disks 220, 222, 224, 226, and 228 assigned to the host computers 300, 302, and 304. A request is made to search for D11 to Dmn (S20).

  The operating state management unit 120 refers to the result of the search request and determines whether there are any physical storage devices D11 to Dmn that can be stopped. If there are no physical storage devices D11 to Dmn that can be stopped, the operating state management unit 120 ends the process (S21).

  When the operation state management unit 120 determines that there are physical storage devices D11 to Dmn that can be stopped, it requests the physical storage device operation control unit 150 to stop the physical storage devices D11 to Dmn (S22). ).

  The operating state management unit 120 records that the physical storage devices D11 to Dmn are stopped to the table management unit 130 after stopping the physical storage devices D11 to Dmn, and the time when the physical storage devices D11 to Dmn are stopped. Is recorded, and a request is made to set the time until the inspection for the presence or absence of a failure in the physical storage devices D11 to Dmn is started (S23).

  Next, the operation of the table management unit 130 will be described with reference to the drawings.

  FIG. 5 is a flowchart showing the operation of the table management unit 130.

  In (S20), the table management unit 130 sends a host number 1321 and a request to record that the power of the host computers 300, 302, and 304 indicated by the host number 1321 has been stopped from the operation state management unit 120, and the host computer. Operates by receiving a request to search for physical storage devices D11 to Dmn that can be stopped among the physical storage devices D11 to Dmn that configure the logical disks 220, 222, 224, 226, and 228 assigned to 300, 302, and 304 To do.

  Here, in the following description, a case where the power source of the host computer 300 is stopped will be described for convenience.

  Referring to FIG. 5, first, the table management unit 130 refers to the host information table 132, searches for a record corresponding to the host computer 300, and sets the information of the host power state 1322 of the record to a value indicating power supply stop. Update. If the logical disk number 1323 of the record searched in the host information table 132 has a plurality of values, the table management unit 130 performs the following (S31) and subsequent steps for each logical disk number 1323 (S30). ).

  The table management unit 130 refers to the logical disk information table 134 and searches for a record that matches the value of the logical disk number 1323 of the searched record (S31).

  The table management unit 130 refers to the disk pool information table 136 and searches for a record that matches the value of the disk pool number 1341 of the record searched in the logical disk information table 134. If the logical disk number 1323 of the record searched in the disk pool information table 136 has a plurality of values, the following (S33) and subsequent steps are performed for each logical disk number 1323 (S32).

  The table management unit 130 refers to the host information table 132, searches for a record having the value of the logical disk number 1323 of the record found by searching the disk pool information table 136 in (S32), and hosts other than the host computer 300 It is determined whether or not a record corresponding to the computers 302 and 304 can be found (S33).

  When a record corresponding to the host computers 302 and 304 other than the host computer 300 is found, the table management unit 130 refers to the value of the host power state 1322 of the record to determine the power state of the host computers 302 and 304. To do. If a plurality of records corresponding to the host computers 302 and 304 other than the host computer 300 are found, the table management unit 130 determines the power status of the host computers 302 and 304 for all the records (S34). ).

  If the corresponding record cannot be found in (S33), or if the values of the host power status 1322 of all the records determined in (S34) are values indicating power supply stop, the table management unit 130 is activated. The state management unit 120 is notified of the value of the physical storage device number 1361 of the record found in the search of the disk pool information table 136 in (S32) as the number of physical storage devices D11 to Dmn that can be stopped (S35). ).

  In the above (S34), the table management unit 130 can stop the operation state management unit 120 when the value of the host power state 1322 is a value indicating power-on even in one of the determined records. A report is made that there is no physical storage device D11-Dmn (S36).

  Next, the operation of the physical storage device operation control means 150 will be described with reference to the drawings.

  FIG. 6 is a flowchart showing the operation of the physical storage device operation control means 150.

  The physical storage device operation control unit 150 receives the physical storage device number 1361 and the request to stop the physical storage devices D11 to Dmn indicated by the physical storage device number 1361 from the operation state management unit 120 in the above-described (S22). Works by.

  Referring to FIG. 6, the physical storage device operation control unit 150 stops the physical storage devices D11 to Dmn corresponding to the physical storage device number 1361 received from the operation state management unit 120. After stopping the physical storage devices D11 to Dmn, the physical storage device operation control unit 150 reports to the operating state management unit 120 that the physical storage devices D11 to Dmn have been stopped (S50).

  Next, the operation of the table management unit 130 when recording information for stopping the physical storage devices D11 to Dmn will be described with reference to the drawings.

  FIG. 7 is a flowchart showing the operation of the table management unit 130.

  In the above-described (S23), the table management unit 130 sends the physical storage device number 1361 from the operation state management unit 120, and the disk pool numbers 1341 of the disk pools 200, 202, and 204 formed by the physical storage devices D11 to Dmn. , Recording a request to record that the physical storage devices D11 to Dmn are stopped and a stop time 1362 when the physical storage devices D11 to Dmn are stopped, and checking until the physical storage devices D11 to Dmn are checked for failure Operates by receiving a request to set a start time 1363.

  Referring to FIG. 7, the table management unit 130 refers to the physical storage device information table 138, searches for a record that matches the physical storage device number 1361 reported from the operation state management unit 120, and operates the physical storage device of the record. The state 1381 is updated to a value indicating stop (S60).

  The table management unit 130 refers to the disk pool information table 136, searches for a record that matches the disk pool number 1341 reported from the operating state management unit 120, and stops the physical storage devices D11 to Dmn at the stop time 1362 of the record. The recorded time is recorded, and the time until the inspection for the presence / absence of failure of the physical storage devices D11 to Dmn is set as the inspection start time 1363 (S61).

  Next, the operation of the table management unit 130 when the host computer 300 is turned on will be described with reference to the drawings.

  FIG. 8 is a flowchart showing an operation when the host computer 300 is turned on. Note that when the other host computers 302 and 304 are also powered on, the following procedures (S70) to (S73) are performed for the respective host computers 302 and 304.

  Referring to FIG. 8, the host computer 300 is turned on from the power management unit 402 on the management server 400. First, upon receiving a power-on instruction from the operator, the power management unit 402 reports a host number 1321 which is information for identifying the host computer 300 to be powered on to the operating state management unit 120, and the host A request is made to rotate the physical storage devices D11 to Dmn constituting the logical disks 220, 222, 224, 226, and 228 assigned to the computer 300 (S70).

  When the power management unit 402 receives a report from the operating state management unit 120 that the physical storage devices D11 to Dmn have been rotated, the power management unit 402 transmits a power-on request for powering on the host computer 300 (S71).

  Upon receiving the power-on request from the power management unit 402, the host computer 300 turns on its own power and reports to the power management unit 402 that the power has been turned on (S72).

  When the power management unit 402 receives a report of power-on from the host computer 300, it reports the host number 1321 of the host computer 300 that has been powered on to the operating state management unit 120, and powers on the host computer 300. A request is made to record the fact (S73).

  Next, the operation of the operating state management unit 120 will be described with reference to the drawings.

  FIG. 9 is a flowchart showing the operation of the operating state management means 120 in (S70).

  The operating state management unit 120 receives the host number 1321 of the host computer 300 to be powered on and an instruction to rotate the physical storage devices D11 to Dmn assigned to the host computer 300 from the power management unit 402 in the above (S70). It works by that.

  Referring to FIG. 9, first, upon receiving the host number 1321 of the host computer 300 and an instruction to rotate the physical storage devices D11 to Dmn, the operating state management unit 120 sets the host number 1321 to the table management unit 130. Report and request to search the stopped physical storage devices D11 to Dmn among the physical storage devices D11 to Dmn constituting the logical disks 220, 222, 224, 226 and 228 allocated to the host computer 300. (S80).

  The operating state management unit 120 determines whether there are any stopped physical storage devices D11 to Dmn. When it is determined that there are no stopped physical storage devices D11 to Dmn, the operating state management unit 120 ends the process (S81).

  When it is determined that among the physical storage devices D11 to Dmn constituting the logical disks 220, 222, 224, 226, and 228 allocated to the host computer 300, there is a stopped physical storage device D11 to Dmn, the operating state The management unit 120 requests the physical storage device operation control unit 150 to rotate the physical storage devices D11 to Dmn (S82).

  The operating state management unit 120 records that the physical storage devices D11 to Dmn are rotated to the table management unit 130 after the physical storage devices D11 to Dmn rotate, and the physical storage devices D11 to Dmn are stopped. A request is made to delete the time 1362 and the inspection start time 1363 until the inspection of the presence or absence of a failure in the physical storage devices D11 to Dmn is started (S83).

  Next, the operation of the table management means 130 in (S80) will be described with reference to the drawings.

  FIG. 10 is a flowchart showing the operation of the table management unit 130.

  Referring to FIG. 10, the table management unit 130 refers to the host information table 132 and searches for a record corresponding to the host computer 300 (S90). If the logical disk number 1323 of the record searched in the host information table 132 has a plurality of values, the following operations (S91) and after are performed for each logical disk number 1323.

  The table management means 130 refers to the logical disk information table 134 and searches for a record that matches the value of the logical disk number 1323 of the record found in (S90) (S91).

  The table management unit 130 refers to the disk pool information table 136 and searches for a record that matches the value of the disk pool number 1341 of the record searched in the logical disk information table 134 (S92).

  The table management unit 130 refers to the physical storage device information table 138 and searches for a record that matches the physical storage device number 1361 of the record found by searching the disk pool information table 136 (S93).

  The table management unit 130 determines the physical storage device operating state 1381 of the physical storage devices D11 to Dmn with respect to the record found by searching the physical storage device information table 138 (S94).

  If it is determined that among the physical storage devices D11 to Dmn constituting the logical disks 220, 222, 224, 226, and 228 allocated to the host computer 300, there is a physical storage device D11 to Dmn that is stopped, table management The means 130 reports the value of the physical storage device number 1361 of the record found by the search of the disk pool information table 136 to the operating state management means 120 as the physical storage device number 1361 to be rotated (S95).

  When it is determined that there are no stopped physical storage devices D11 to Dmn, the table management unit 130 reports to the operating state management unit 120 that there are no stopped physical storage devices D11 to Dmn ( S96).

  Next, the operation of the physical storage device operation control means 150 in the above described (S82) will be described with reference to the drawings.

  FIG. 11 is a flowchart showing the operation of the physical storage device operation control means 150.

  The physical storage device operation control unit 150 operates by receiving a physical storage device number 1361 and a request to rotate the physical storage devices D11 to Dmn indicated by the physical storage device number 1361 from the operation state management unit 120.

  Referring to FIG. 11, the physical storage device operation control unit 150 rotates the physical storage devices D11 to Dmn corresponding to the physical storage device number 1361 reported by the operation state management unit 120. After rotating the physical storage devices D11 to Dmn, the physical storage device operation control unit 150 reports to the operating state management unit 120 that the physical storage devices D11 to Dmn have been rotated (S111).

  Next, the operation of the table management unit 130 in the above-described (S83) will be described with reference to the drawings.

  FIG. 12 is a flowchart showing the operation of the table management unit 130.

  The table management unit 130 receives the physical storage device number 1361, the disk pool numbers 1341 of the disk pools 200, 202, and 204 formed by the physical storage devices D11 to Dmn, and the physical storage devices D11 to Dmn from the operating state management unit 120. It operates by receiving a request to record that the disk has rotated, and a request to erase the time at which the physical storage devices D11 to Dmn are stopped and the time until the physical storage devices D11 to Dmn are checked for failure. .

  Referring to FIG. 12, the table management unit 130 refers to the physical storage device information table 138, searches for a record that matches the physical storage device number 1361 reported by the operation state management unit 120, and operates the physical storage device of the record. The state 1381 is updated to a value indicating that it is rotating (S120).

  The table management unit 130 refers to the disk pool information table 136, searches for a record that matches the disk pool number 1341 reported by the operating state management unit 120, and sets the stop time 1362 and the value of the inspection start time 1363 of the record. Erasing is performed (S121).

  Next, the operation of the operating state management unit 120 in (S73) described above will be described with reference to the drawings.

  FIG. 13 is a flowchart showing the operation of the operation state management unit 120 in (S73) described above.

  The operating state management unit 120 operates by receiving from the power management unit 402 a host number 1321 of the host computer 300 that has been turned on and a request to record that the host computer 300 has been turned on.

  Referring to FIG. 13, when the operating state management unit 120 receives the host number 1321 of the host computer 300 and a request to record that the host computer 300 is turned on, the operating state management unit 120 sends the host number 1321 to the table management unit 130. And requests to record that the power of the host computer 300 indicated by the host number 1321 is turned on (S130).

  Next, the operation of the table management means 130 in (S130) will be described with reference to the drawings.

  FIG. 14 is a flowchart showing the operation of the table management unit 130 in (S130).

  Referring to FIG. 14, the table management unit 130 refers to the host information table 132, searches for a record that matches the host number 1321 reported by the operation state management unit 120, and sets the value of the host power state 1322 of the record to the power source. (S140).

  Next, the operation of the physical storage device inspection unit 110 when inspecting the presence or absence of a failure in the physical storage device group 240 will be described with reference to the drawings.

  FIG. 15 is a flowchart showing the operation of the physical storage device inspection unit 110 when inspecting the physical storage device group 240 for failure.

  Referring to FIG. 15, the physical storage device inspection unit 110 uses the operation state management unit 120 and the table management unit 130 to stop time 1362 and inspection start time of each record in the disk pool information table 136 at regular time intervals. 1363. The physical storage device inspection unit 110 also refers to the current time. The physical storage device inspection unit 110 determines whether or not a record in which the difference between the record stop time 1362 and the current time exceeds the value of the inspection start time 1363 of the record can be found. If no corresponding record is found, the physical storage device inspection unit 110 ends the process (S150).

  When a record in which the difference between the record stop time 1362 and the current time exceeds the value of the inspection start time 1363 of the record can be found, the physical storage device inspection unit 110 notifies the operation state management unit 120. The physical storage devices D11 to Dmn constituting the disk pools 200, 202, and 204 are requested to rotate (S151).

  When the physical storage device checking unit 110 receives a report from the operating state management unit 120 that the physical storage devices D11 to Dmn have been rotated, the physical storage device D11 to Dmn that configures the disk pool 200, 202, 204 is in trouble. The presence or absence is inspected (S152).

  When the inspection of the physical storage devices D11 to Dmn is completed, the physical storage device inspection unit 110 causes the operating state management unit 120 to stop the physical storage devices D11 to Dmn constituting the disk pools 200, 202, and 204. (S153).

  Next, the operation of the operation state management unit 120 in (S151) will be described with reference to the drawings.

  FIG. 16 is a flowchart showing the operation of the operating state management unit 120.

  Referring to FIG. 16, first, the operating state management unit 120 rotates the disk pool numbers 1341 of the disk pools 200, 202, and 204 to be inspected and the physical storage devices D11 to Dmn that constitute the disk pools 200, 202, and 204. And receive instructions. The operating state management unit 120 reports the disk pool number 1341 to the table management unit 130 and requests to search the physical storage devices D11 to Dmn constituting the disk pools 200, 202, and 204 (S160). .

  When receiving the report of the physical storage device number 1361 from the table management unit 130, the operating state management unit 120 requests the physical storage device operation control unit 150 to rotate the physical storage devices D11 to Dmn (S161). ).

  After the physical storage devices D11 to Dmn rotate, the operating state management unit 120 reports to the physical storage device inspection unit 110 that the physical storage devices D11 to Dmn have rotated (S162).

  Next, the operation of the operating state management unit 120 in (S153) will be described with reference to the drawings.

  FIG. 17 is a flowchart showing the operation of the operating state management unit 120.

  Referring to FIG. 17, the operating state management unit 120 stops the disk pool numbers 1341 of the disk pools 200, 202, and 204 that have been inspected, and the physical storage devices D11 to Dmn that constitute the disk pools 200, 202, and 204. Receive instructions and. The operating state management unit 120 reports the disk pool number 1341 to the table management unit 130 and requests to search the physical storage devices D11 to Dmn constituting the disk pools 200, 202, and 204 (S170). .

  When receiving the report of the physical storage device number 1361 from the table management unit 130, the operating state management unit 120 requests the physical storage device operation control unit 150 to stop the physical storage devices D11 to Dmn (S171). ).

  After the physical storage devices D11 to Dmn are stopped, the operation state management unit 120 gives the table management unit 130 the stop time 1362 of the record of the disk pools 200, 202, and 204 that has been inspected as the current time value. To update. Further, the operating state management unit 120 reports to the physical storage device inspection unit 110 that the physical storage devices D11 to Dmn have stopped (S172).

  If the host computers 300, 302, and 304 corresponding to the disk pools 200, 202, and 204 are turned on while the disk pools 200, 202, and 204 are being checked, the checking process is interrupted and the host computers 300 and 302 are checked. , 304 is prioritized.

  As described above, in the storage system 10 of the present invention, the management server 400 requests the host computers 300, 302, 304 to stop or turn on the power, and is assigned to the host computers 300, 302, 304. Means for requesting stop or rotation of the physical storage devices D11 to Dmn constituting the disks 220, 222, 224, 226, and 228 is provided. The storage system 10 also associates the host computers 300, 302, 304, logical disks 220, 222, 224, 226, 228, disk pools 200, 202, 204 and physical storage devices D11-Dmn, In addition, a table storage unit 13 is provided for recording the power state of the host computers 300, 302, and 304 and the operating state of the physical storage devices D11 to Dmn.

  Accordingly, the rotation of the physical storage devices D11 to Dmn accessed from the host computer 300, 302, 304 can be stopped / started with the power stop / on of the host computer 300, 302, 304. As a result, when it is clear that the host computers 300, 302, and 304 are powered off and the logical disks 220, 222, 224, 226, and 228 are not accessed, the storage system 10 stores the physical storage devices 11 to Dmn. It is possible to efficiently stop the rotation of the physical storage devices 11 to Dmn without requiring a long waiting time to stop the rotation.

1 is a schematic configuration block diagram showing a storage system of the present invention. 2A illustrates a host information table, FIG. 2B illustrates a logical disk information table, FIG. 2C illustrates a disk pool information table, and FIG. 2D illustrates a physical storage device information table. FIG. It is a flowchart which shows operation | movement of the power supply management means at the time of stopping the power supply of a host computer. It is a flowchart which shows operation | movement of an operation state management means. It is a flowchart which shows operation | movement of a table management means. It is a flowchart which shows operation | movement of a physical storage apparatus operation control means. It is a flowchart which shows operation | movement of a table management means. It is a flowchart which shows the operation | movement at the time of powering on a host computer. It is a flowchart which shows operation | movement of an operation state management means. It is a flowchart which shows operation | movement of a table management means. It is a flowchart which shows operation | movement of a physical storage apparatus operation control means. It is a flowchart which shows operation | movement of a table management means. It is a flowchart which shows operation | movement of an operation state management means. It is a flowchart which shows operation | movement of a table management means. It is a flowchart which shows operation | movement of the physical storage device test | inspection means at the time of test | inspecting the presence or absence of a failure of a physical storage device group. It is a flowchart which shows operation | movement of the operation state management means at the time of rotating a physical storage apparatus. It is a flowchart which shows operation | movement of the operation state management means at the time of stopping a physical storage apparatus.

Explanation of symbols

DESCRIPTION OF SYMBOLS 10 Storage system 13 Table storage means 100 Storage apparatus 110 Physical storage apparatus test | inspection means 120 Operation state management means 130 Table management means 132 Host information table 1321 Host number 1322 Host power state 1323 Logical disk number 134 Logical disk information table 1341 Disk pool number 136 Disk pool information table 1361 Physical storage device number 1362 Stop time 1363 Inspection start time 138 Physical storage device information table 1381 Physical storage device operating state 150 Physical storage device operation control means 200, 202, 204 Disk pool 220 Logical disk 222, 224 Logical disk 226, 228 Logical disk 240 Physical storage device group D11 to Dmn Physical storage device 300, 302, 304 E DOO computer 400 management server 402 Power management means

Claims (19)

In a storage system having a storage device that records and reproduces information, a plurality of host computers that access logical disks in the storage device, and a management server that manages the storage devices and the host computers, the management server includes: Power management means comprising: power stop / on instruction means for the host computer; and stop / rotation instruction means for a physical storage device constituting the logical disk assigned to the host computer for the storage apparatus. And storage system. The storage device includes means for associating the host computer, the logical disk, and the physical storage device, and means for storing a power state of the host computer and an operating state of the physical storage device. The storage system according to claim 1. The storage apparatus has means for configuring a plurality of disk pools that are virtual storage media by making them redundant from a plurality of the physical storage apparatuses, and means for configuring one or more logical disks on the disk pool. The storage system according to claim 1 or 2. The storage apparatus constructs a host information table for storing the power status and identification number of the host computer and the number of the logical disk allocated to the host computer, and the logical disk number and the logical disk. A logical disk information table that associates and stores a disk pool number, and a disk pool information table that associates and stores the disk pool number, the logical disk number, and the physical storage device number that constructs the disk pool 4. A storage system according to claim 3, further comprising: a physical storage device information table for storing a number and an operating state of the physical storage device. The disk pool information table, in addition to the disk pool number, the logical disk number, and the physical storage device number, a stop time that records a time when the physical storage device constituting the disk pool is stopped, 5. The storage system according to claim 4, further comprising: an inspection start time for recording a time from when the physical storage device is stopped to when an inspection for the presence or absence of a failure of the physical storage device is started. The storage device includes: a physical storage device inspection unit that inspects for a failure of the physical storage device; a physical storage device operation control unit that controls an operation state of the physical storage device; the host information table; A table management means for managing the disk information table, the disk pool information table, and the physical storage device information table; an instruction from the power management means or a request from the physical storage device checking means; 6. The storage system according to claim 4, further comprising an operation state management unit that transmits an instruction to the physical storage device operation control unit. 7. The operating state management means includes means for determining whether the operating state of the physical storage device is stopped or rotating and instructing stop / rotation of the physical storage device. Storage system. In the storage system control method, comprising: a storage device that records and reproduces information; a plurality of host computers that access logical disks in the storage device; and a management server that manages the storage devices and the host computers. The server instructs the power management means to stop / turn on the power to the host computer, and instructs the storage device to stop / rotate the physical storage device constituting the logical disk allocated to the host computer. And a storage system control method. The storage device includes a step of associating the host computer, the logical disk, and the physical storage device, and a step of storing a power state of the host computer and an operating state of the physical storage device. The storage system control method according to claim 8. The storage device includes a step of configuring a plurality of disk pools as virtual storage media by making them redundant from a plurality of physical storage devices, and a step of configuring one or more logical disks on the disk pool. 10. The storage system control method according to claim 8 or 9, wherein: The storage device stores a power status of the host computer, an identification number, and a number of the logical disk assigned to the host computer in a host information table, and constructs the logical disk number and the logical disk. Storing the disk pool number in the association logical disk information table, and associating the disk pool number, the logical disk number, and the physical storage device number for constructing the disk pool with each other. 11. The storage system control method according to claim 10, further comprising a step of storing in the information table, and a step of storing in the physical storage device information table the number and operating state of the physical storage device. In addition to the number of the disk pool, the number of the logical disk, and the number of the physical storage device, the time when the physical storage device constituting the disk pool is stopped as a stop time in the disk pool information table 12. The storage system according to claim 11, further comprising a step of storing, as an inspection start time, a time from when the physical storage device is stopped until the inspection for the presence or absence of a failure of the physical storage device is started. Control method. The storage device inspecting the physical storage device by means of physical storage device inspection means; controlling the operation state of the physical storage device by means of physical storage device operation control means; and the host information table; A step of managing the logical disk information table, the disk pool information table, and the physical storage device information table by a table management unit; an instruction from the power management unit by an operation state management unit; 13. The storage system control method according to claim 11 or 12, further comprising a step of receiving a request and transmitting an instruction to the table management unit and the physical storage device operation control unit. The operation state management unit includes a step of determining whether the operation state of the physical storage device is stopped or rotating, and a step of instructing stop / rotation of the physical storage device. Item 14. A storage system control method according to Item 13. In a storage device that connects to a management server and a plurality of host computers that access a logical disk assigned to the host computer and records and reproduces information, a plurality of disk pools that are virtual storage media are made redundant from a plurality of physical storage devices. And means for configuring one or more logical disks on the disk pool, the host computer, the logical disk, and the physical storage device configuring the logical disk, and A table storage unit that records a power state of the host computer and an operating state of the physical storage device, and the management server includes a power stop / on instruction unit for the host computer and the physical storage device of the storage device. And a power management means comprising a stop / rotation instructing means. . The table storage means constructs a host information table for storing the power status and identification number of the host computer and the number of the logical disk assigned to the host computer, and the logical disk number and the logical disk. Logical disk information table that stores the disk pool number in association with each other, and disk pool information that stores the disk pool number, the logical disk number, and the physical storage device number that constructs the disk pool in association with each other. 16. The storage apparatus according to claim 15, further comprising a table, and a physical storage device information table for storing the number of the physical storage device and an operating state. The disk pool information table, in addition to the disk pool number, the logical disk number, and the physical storage device number, a stop time that records a time when the physical storage device constituting the disk pool is stopped, 17. The storage apparatus according to claim 16, further comprising: an inspection start time for recording a time from when the physical storage device is stopped to when an inspection for the presence or absence of a failure of the physical storage device is started. Physical storage device inspection means for inspecting whether there is a failure in the physical storage device, physical storage device operation control means for controlling the operating state of the physical storage device, table management means for managing the table storage means, And an operating state management unit that receives an instruction from the power management unit or a request from the physical storage device checking unit and transmits an instruction to the table management unit and the physical storage device operation control unit. The storage device according to claim 16 or 17. 19. The operation state management means includes means for determining whether the operation state of the physical storage device is stopped or rotating and instructing stop / rotation of the physical storage device. Storage device.

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