JP6167597B2 - Information processing apparatus, storage system, layout design support method, and program for supporting layout design - Google Patents

Description

  The present invention relates to an arrangement design technique for equipment, and more particularly to an arrangement design technique considering power saving.

  A storage system composed of many disks and various related technologies thereof are known.

  For example, Patent Document 1 discloses a technique for hierarchical storage pool management and control in a storage system.

  In recent years, there has been a demand for an increase in the storage capacity per volume, that is, the number of physical disks that can be mounted (enhancement of enclosures) in storage enclosures for applications such as data centers. However, in a highly densified enclosure, physical disks operate more densely, and therefore, these physical disks tend to be hot. In such a case, in order to operate these physical disks normally, a method of increasing the cooling effect by increasing the rotation speed of the fan mounted in the enclosure can be considered. However, there is a problem that when the number of rotations of the fan is increased, the power consumption increases accordingly.

  To solve this problem, there is a technology called MAID (Massive Array of Idle Disks, or Massive Array of Inactive Disks) that stops a physical disk that is waiting for access and operates it only when access is required. When a disk pool using the MAID technology is configured, a method of efficiently suppressing the temperature rise in the enclosure by stopping the physical disk that is at a high temperature or lowering the rotation speed is conceivable. Here, the disk pool is a set of physical disks that can create one or a plurality of virtual disks. For example, Patent Document 2 discloses a disk array device as described above.

  Patent Document 3 discloses a storage system to which a power saving function is applied. The storage system of Patent Document 3 has means for relocating a logical disk to a disk pool having a power saving function based on a specification stop instruction for the logical disk.

JP 2012-043407 A JP 2010-152505 A JP 2008-242971 A

  However, in the technology described in the above-mentioned prior art documents, it is impossible to obtain optimal physical disk arrangement information for power saving by suppressing the number of rotations of the fan for cooling the physical disk. There is a problem.

  The reason is that in the technology described in the above-mentioned prior art documents, it is not sufficient to consider the correspondence between a physical disk whose physical disk is stopped or whose number of rotations has been reduced and a fan that cools the physical disk. is there.

  For example, one of the physical disks constituting a redundant RAID (Redundant Arrays of Independent Disks or Redundant Arrays of Independent Disks) disk pool is stopped to save power. At this time, if the number of fan rotations is determined according to the hottest physical disk among the physical disks to be cooled, even if one of the physical disks to be cooled is stopped, the remaining physical disks Since the temperature of the fan is high, it is assumed that the fan speed does not decrease. That is, in such a storage system, depending on the arrangement of the physical disks, the fan rotation speed cannot be efficiently suppressed, and the power saving effect may not be sufficiently obtained.

  An object of the present invention is to provide an information processing apparatus, a storage system, an arrangement design support method, and a program therefor that support arrangement design that solves the above-described problems.

  The layout design support apparatus of the present invention includes a first pool identifier indicating a group of the physical disks corresponding to a plurality of physical disks, and information on the first physical disk corresponding to the first pool identifier; Including pool update information, a mounting area identifier for specifying a mounting area in which a physical disk is mounted, a cooling means identifier for specifying a cooling means corresponding to each of the plurality of mounting areas, and a physical disk mounting state in the mounting area When any one of the physical disks is set to the power saving mode based on the storage status information indicating the correspondence between the second pool identifier corresponding to the second pool identifier corresponding to the physical disk mounted in the plurality of mounting areas Further, each of the physical disks corresponding to the first pool identifier and the mounting area that can reduce the power consumption of the cooling means. Including mounting region selecting means for outputting the mounting information indicating a relationship between each identifier.

  The storage system of the present invention includes a first pool identifier indicating a group of the physical disks corresponding to a plurality of physical disks, and information relating to the first physical disk corresponding to the first pool identifier. Including pool update information, a mounting area identifier for specifying a mounting area in which a physical disk is mounted, a cooling means identifier for specifying a cooling means corresponding to each of the plurality of mounting areas, and a mounting state of the physical disk in the mounting area. When any one of the physical disks is set to the power saving mode based on the storage status information indicating the correspondence between the mounting status information shown and the second pool identifier corresponding to the second physical disk mounted in the plurality of mounting areas. , Each of the physical disks corresponding to the first pool identifier such that the power consumption of the cooling means can be reduced, and the Including a mounting region selecting means for outputting the mounting information indicating a relationship between each of the mounting area identifier, and generates the storage information, and means for transmitting to said mounting region selecting means.

  The layout design support method of the present invention includes a first pool identifier indicating a group of the physical disks corresponding to a plurality of physical disks, and information on the first physical disk corresponding to the first pool identifier; Including pool update information, a mounting area identifier for specifying a mounting area in which a physical disk is mounted, a cooling means identifier for specifying a cooling means corresponding to each of the plurality of mounting areas, and a physical disk mounting state in the mounting area When any one of the physical disks is set to the power saving mode based on the storage status information indicating the correspondence between the second pool identifier corresponding to the second pool identifier corresponding to the physical disk mounted in the plurality of mounting areas Further, each of the physical disks corresponding to the first pool identifier and the mounting area that can reduce the power consumption of the cooling means. And outputs the mounting information indicating a relationship between each identifier.

  A program according to the present invention includes a first pool identifier indicating a group of the physical disks corresponding to a plurality of physical disks, and information relating to the first physical disk corresponding to the first pool identifier. Update information, a mounting area identifier for specifying a mounting area for mounting a physical disk, a cooling means identifier for specifying a cooling means corresponding to each of the plurality of mounting areas, and a mounting indicating a mounting state of the physical disk in the mounting area Based on the storage information indicating the correspondence between the state information and the second pool identifier corresponding to the physical disk mounted in the plurality of mounting areas, when any of the physical disks is set to the power saving mode, Each physical disk corresponding to the first pool identifier and the mounting area identification so that the power consumption of the cooling means can be reduced. Of executing a process of outputting the mounting information indicating a relationship between each of the computer.

  The present invention has an effect that it is possible to obtain physical disk arrangement information optimal for power saving by suppressing the rotational speed of a fan for cooling a physical disk.

FIG. 1 is a block diagram showing the configuration of the layout design support apparatus according to the first embodiment. FIG. 2 is a diagram illustrating an example of update instruction information according to the first embodiment. FIG. 3 is a diagram illustrating an example of the storage information table according to the first embodiment. FIG. 4 is a diagram illustrating an example of the mounting information in the first embodiment. FIG. 5 is a block diagram illustrating a hardware configuration of a computer that realizes the layout design support apparatus according to the first embodiment. FIG. 6 is a block diagram illustrating a configuration of a storage system including the layout design support apparatus according to the first embodiment. FIG. 7 is a diagram illustrating an example of the structure of the physical disk group in the first embodiment. FIG. 8 is a flowchart showing the operation of the layout design support apparatus according to the first embodiment. FIG. 9 is a flowchart showing the operation of the layout design support apparatus according to the first embodiment. FIG. 10 is a block diagram illustrating a configuration of a storage system including the layout design support apparatus according to the second embodiment. FIG. 11 is a diagram illustrating an example of pool update information according to the second embodiment. FIG. 12 is a diagram illustrating an example of the mounting information in the second embodiment. FIG. 13 is a diagram illustrating an example of a MAID control information table according to the second embodiment. FIG. 14 is a diagram illustrating an example of a fan information table according to the second embodiment. FIG. 15 is a diagram illustrating an example of a pool information table according to the second embodiment. FIG. 16 is a diagram illustrating an example of a physical disk information table according to the second embodiment. FIG. 17 is a diagram illustrating an example of a slot information table according to the second embodiment. FIG. 18 is a flowchart illustrating the operation of the update instruction input unit according to the second embodiment. FIG. 19 is a flowchart showing the operation of the slot selection unit in the second embodiment. FIG. 20 is a flowchart showing the operation of the slot selection unit in the second embodiment. FIG. 21 is a flowchart showing the operation of the slot selection unit in the second embodiment. FIG. 22 is a flowchart showing the operation of the mounting information output unit in the second embodiment.

  Embodiments for carrying out the present invention will be described in detail with reference to the drawings. In each embodiment described in each drawing and specification, the same reference numerals are given to the same components, and the description thereof is omitted as appropriate.

  In the following description, the fan (A) 302, the fan (B) 302, the fan (C) 302, the fan (D) 302, the fan (E) 302, and the fan (F) 302 may be collectively referred to as the fan 302. . Also, slots (A1) to (A8) 243, slots (B1) to (B8) 243, slots (C1) to (C8) 243, slots (D1) to (D8) 243, slots (E1) to (E8) The slots 243 and slots (F1) to (F8) 243 may be collectively referred to as slots 243.

<<<< first embodiment >>>>
FIG. 1 is a block diagram showing a configuration of an arrangement design support apparatus 100 according to the first embodiment of the present invention.

  As shown in FIG. 1, the layout design support apparatus 100 according to the present embodiment includes a slot selection unit (also referred to as a mounting area selection unit) 120. The constituent elements shown in FIG. 1 may be constituent elements in hardware units or constituent elements divided into functional units of the computer apparatus. Here, the components shown in FIG. 1 will be described as components divided into functional units of the computer apparatus.

=== Slot Selection Unit 120 ===
The slot selection unit 120 outputs mounting information indicating the relationship between each physical disk and each mounting area identifier based on the pool update information 510 and the storage information. The relationship indicated by the mounting information 520 is a relationship for reducing the rotational speed of a fan (also referred to as a cooling unit) when any of the physical disks is set to the power saving mode. Note that “the number of rotations of the fan can be reduced” is also expressed as “the power consumption of the cooling means can be reduced”.

  Here, the fan is a fan for cooling the physical disk. The mounting area identifier is an identifier that identifies a mounting area in which a physical disk is mounted.

  For example, the slot selection unit 120 sequentially determines the above relationships based on the pool update information 510 and the storage information table as follows. That is, the slot selection unit 120 gives the highest priority to satisfying the first condition, gives the second priority to satisfying the second condition, and finally satisfies the third condition. The relationship between each of the physical disk identifiers included in 510 and each of the slot identifiers (also referred to as mounting area identifiers) of the storage information table is sequentially determined. Details of the first to third conditions will be described later. In other words, the slot selection unit 120 determines the slot identifier of the slot in which the physical disk specified by the physical disk identifier is mounted so as to satisfy the above condition. Here, “the relationship between each physical disk identifier and each slot identifier in the storage information table” means that “the physical disk specified by each physical disk identifier and each slot in which a physical disk is mounted”. The relationship.

  Next, the slot selection unit 120 generates mounting information 520 indicating the determined relationship. Next, the slot selection unit 120 outputs the generated mounting information 520.

  FIG. 2 is a diagram illustrating an example of the pool update information 510. As shown in FIG. 2, the pool update information 510 includes a physical disk identifier 512 that identifies a physical disk and a pool identifier 511 (first pool identifier) that identifies a plurality of physical disk identifiers 512 as a group. Here, the “physical disk identifier 512 corresponding to the pool identifier 511” is also referred to as “information regarding the physical disk corresponding to the pool identifier 511 (first pool identifier)”.

  The pool update information 510 is, for example, information on a disk pool that a user (worker or an instructor to the worker) is trying to construct in the storage 201. Here, the disk pool is a set of physical disks that can create one or a plurality of virtual disks (for example, RAID).

  FIG. 3 is a diagram illustrating an example of the storage information table 530.

The storage information table 530 illustrated in FIG. 3 includes a fan identifier 503, a slot identifier 504, a physical disk identifier 502, and a pool identifier 501 (second pool identifier) that are associated with each other as a storage information record 539. The slot identifier 504 is an identifier that identifies a slot (also referred to as a mounting area) in which a physical disk is mounted. The fan identifier 503 is an identifier that identifies a fan for cooling the physical disk mounted in the slot. The physical disk identifier 502 is an identifier that identifies the physical disk. The pool identifier 501 is an identifier that identifies a group including a plurality of the physical disks.
Here, the storage information record 539 whose physical disk identifier 502 is “0” indicates that no physical disk is mounted in the slot of the corresponding slot identifier 504. A storage information record 539 having a physical disk identifier 502 such as “P1” (ie, other than “0”) indicates that a physical disk is mounted in the slot of the corresponding slot identifier 504. In other words, the physical disk identifier 502 is mounting state information indicating the mounting state of the physical disk in the slot.

  FIG. 4 is a diagram illustrating an example of the mounting information 520. As shown in FIG. 4, the mounting information 520 includes a set of a physical disk identifier 502 and a corresponding slot identifier 504. The mounting information 520 is information indicating, for example, to the user the slot specified by the slot identifier 504 on which the physical disk specified by the physical disk identifier 502 is mounted.

  Here, the first to third conditions described above for reducing the number of rotations of the fan will be described.

  Examples of specific problems in the problems to be solved by the invention have been described as follows. For example, one of the physical disks constituting a redundant RAID disk pool is stopped to save power. At this time, if the number of fan rotations is determined according to the hottest physical disk among the physical disks to be cooled, even if one of the physical disks to be cooled is stopped, the remaining physical disks Since the temperature of the fan is high, it is assumed that the fan speed does not decrease. That is, in such a storage system, depending on the arrangement of the physical disks, the fan rotation speed cannot be efficiently suppressed, and the power saving effect may not be sufficiently obtained.

  A concrete solution to this problem is to cool each of the physical disks constituting the redundant RAID disk pool with a different fan. By doing so, when one of the physical disks to be cooled is stopped, the fan corresponding to the stopped physical disk is cooled. If a physical disk belonging to another RAID is relatively low temperature, The rotation speed can be lowered.

  The above first to third conditions are conditions in which the pool identifiers corresponding to one RAID disk pool are distributed to the different fan identifiers 503 as much as possible.

  The first condition with the highest priority is to further increase the fan identifier 503 corresponding to either the pool identifier 511 (first pool identifier) or the pool identifier 501 (second pool identifier). In other words, the first condition is a condition for reducing the fan identifier 503 that does not correspond to either the pool identifier 511 or the pool identifier 501, that is, reducing the number of fans that have not cooled the physical disk. .

  The second condition is to further reduce the same pool identifier 511 (first pool identifier) and pool identifier 501 (second pool identifier) corresponding to the specific fan identifier 503. In other words, the second condition is a condition for making the same pool identifier 511 and pool identifier 501 correspond to different fan identifiers as much as possible.

  The third condition is that the number of types of the pool identifier 511 (first pool identifier) corresponding to the specific fan identifier 503 and the number of types of the pool identifier 501 (second pool identifier) are summed. It is to reduce. In other words, the third condition is a condition for allocating the pool identifier 511 and the pool identifier 501 as evenly as possible to each fan identifier.

  Next, components in hardware units of the layout design support apparatus 100 will be described.

  FIG. 5 is a diagram illustrating a hardware configuration of a computer 700 that implements the layout design support apparatus 100 according to the present embodiment.

  As illustrated in FIG. 5, the computer 700 includes a CPU (Central Processing Unit) 701, a storage unit 702, a storage device 703, an input unit 704, an output unit 705, and a communication unit 706. Furthermore, the computer 700 includes a recording medium (or storage medium) 707 supplied from the outside. The recording medium 707 may be a non-volatile recording medium that stores information non-temporarily.

  The CPU 701 controls the overall operation of the computer 700 by operating an operating system (not shown). The CPU 701 reads a program and data from a recording medium 707 mounted on the storage device 703, for example, and writes the read program and data to the storage unit 702. Here, the program is, for example, a program that causes the computer 700 to execute operations of flowcharts shown in FIGS. 8, 9, and 18 to 21 described later.

  Then, the CPU 701 follows the read program and based on the read data, the layout design support apparatus 100 (slot selection unit 120) shown in FIG. 1, 101 shown in FIG. 6 described later, and the layout design shown in FIG. 10 described later. Various processes are executed as the support apparatus 102.

  Note that the CPU 701 may download a program and data to the storage unit 702 from an external computer (not shown) connected to a communication network (not shown).

  The storage unit 702 stores programs and data. For example, the storage unit 702 may store pool update information 510, mounting information 520, and a storage information table 530.

  The storage device 703 is, for example, an optical disk, a flexible disk, a magnetic optical disk, an external hard disk, and a semiconductor memory, and includes a recording medium 707. The storage device 703 (recording medium 707) stores the program in a computer-readable manner. For example, the storage device 703 may store pool update information 510, mounting information 520, and a storage information table 530.

  The input unit 704 is realized by, for example, a mouse, a keyboard, a built-in key button, and the like, and is used for an input operation. The input unit 704 is not limited to a mouse, a keyboard, and a built-in key button, and may be a touch panel, for example.

  The output unit 705 is realized by a display, for example, and is used for confirming the output.

  The communication unit 706 implements an interface with the outside. The communication unit 706 is included as part of the slot selection unit 120.

  As described above, the functional unit block of the layout design support apparatus 100 shown in FIG. 1 is realized by the computer 700 having the hardware configuration shown in FIG. However, the means for realizing each unit included in the computer 700 is not limited to the above. In other words, the computer 700 may be realized by one physically coupled device, or may be realized by two or more physically separated devices connected by wire or wirelessly and by a plurality of these devices. .

  A recording medium 707 in which the above-described program code is recorded may be supplied to the computer 700, and the CPU 701 may read and execute the program code stored in the recording medium 707. Alternatively, the CPU 701 may store the code of the program stored in the recording medium 707 in the storage unit 702, the storage device 703, or both. That is, the present embodiment includes an embodiment of a recording medium 707 that stores a program (software) executed by the computer 700 (CPU 701) temporarily or non-temporarily.

  This completes the description of each component of the computer 700 that implements the layout design support apparatus 100 according to the present embodiment.

  FIG. 6 is a block diagram showing the configuration of a storage system including the layout design support apparatus 100 according to this embodiment.

  As shown in FIG. 6, the storage system includes a management server 101 and a storage 201.

=== Management Server 101 ===
As illustrated in FIG. 6, the management server 101 includes an update instruction input unit 111, a slot selection unit 121, and a mounting information output unit 131.

  The update instruction input unit 111, the slot selection unit 121, and the mounting information output unit 131 correspond to the slot selection unit 120 shown in FIG. In other words, the management server 101 is the arrangement design support apparatus 100.

  The hardware configuration of the management server 101 may be the same as that of the computer 700 shown in FIG.

=== Update Instruction Input Unit 111 ===
The update instruction input unit 111 receives the pool update information 510 input by the user and outputs the pool update information 510 to the slot selection unit 121.

=== Slot Selection Unit 121 ===
The slot selection unit 121 generates mounting information 520 based on the pool update information 510 received from the update instruction input unit 111 and the storage information table 530 and outputs the mounting information 520 to the mounting information output unit 131. As described above, the mounting information 520 is information indicating a relationship for reducing the rotational speed of the fan when any one of the physical disks 242 is set in the power saving mode. The relationship between each identifier 502 and each fan identifier 503 is shown.

  For example, the slot selection unit 121 stores the storage information table 530 in advance in the storage unit 702 or the storage device 703 illustrated in FIG. The slot selection unit 121 may acquire the storage information table 530 from the storage 201 via the communication unit 706 shown in FIG. Further, the slot selection unit 121 may acquire the storage information table 530 input by the user via the output unit 705 shown in FIG. Further, the slot selection unit 121 may acquire the storage information table 530 recorded on the recording medium 707 shown in FIG. 5 via the storage device 703 shown in FIG.

=== Mounting Information Output Unit 131 ===
The mounting information output unit 131 outputs the mounting information 520 generated by the slot selection unit 121 to the outside. For example, the mounting information output unit 131 presents the mounting information 520 to the user using the output unit 705 shown in FIG. Further, the mounting information output unit 131 may transmit the mounting information 520 to the storage 201 via the communication unit 706 shown in FIG. Furthermore, the mounting information output unit 131 may record the mounting information 520 on the recording medium 707 illustrated in FIG. 5 via the storage device 703 illustrated in FIG.

=== Storage 201 ===
The storage 201 includes a storage unit 211, a control unit 221, and a physical disk group 240.

=== Physical Disk Group 240 ===
The physical disk group 240 includes a plurality of physical disks 242.

  FIG. 7 is a diagram showing a structural configuration of the physical disk group 240. Each of the plurality of physical disks 242 (not shown in FIG. 7) is mounted in a plurality of slots 243 accommodated in the enclosure 241. The fan 302 cools the physical disk 242 mounted in the slot 243. As shown in FIG. 7, the fan (A) 302 cools the physical disk 242 mounted in the slots (A1) 243 to (A8) 243. The fan (B) 302 has slots (B1) 243 to (B8) 243, the fan (C) 302 has slots (C1) 243 to (C8) 243, and the fan (D) 302 has slots (D1). ) 243 to (D8) 243, the fan (E) 302 cools the slots (E1) 243 to (E8) 243, and the fan (F) 302 cools the slots (F1) 243 to (F8) 243, respectively. To do.

=== Storage 211 ===
The storage unit 211 stores a storage information table 530. For example, “A” in the fan identifier 503 of the storage information table 530 shown in FIG. 3 is the identifier of the fan (A) 302 shown in FIG. Also, the slot identifier 504 “A1” shown in FIG. 3 is the identifier of the slot (A1) 243 shown in FIG.

=== Control Unit 221 ===
The control unit 221 controls the entire storage 201 to realize a function as a storage. In addition, the control unit 221 may transmit the storage information table 530 to the management server 101 in response to a request from the management server 101.

  Next, the operation of the present embodiment will be described in detail with reference to FIGS.

  8 and 9 are flowcharts showing the operation of the management server 101 in this embodiment. As described above, the management server 101 is equivalent to the layout design support apparatus 100.

  The update instruction input unit 111 receives the pool update information 510 and outputs it to the slot selection unit 121 (step S601).

  Next, the slot selection unit 121 acquires the storage information table 530 from the storage 201 (step S602). The slot selection unit 121 may store the storage information table 530 in advance in a means (not shown) inside the slot selection unit 121 instead of acquiring the storage information table 530 from the outside.

  Next, the slot selection unit 121 selects a pool identifier 511 from the pool update information 510 (step S603). For example, the slot selection unit 121 selects the pool identifier 511 in descending order of the number of physical disk identifiers 512 corresponding to the pool identifier 511. As described above, the number of physical disk identifiers 512 is the number of physical disks 242 specified by each of the physical disk identifiers 512.

  Next, the slot selection unit 121 acquires one physical disk identifier 512 corresponding to the selected pool identifier 511 (step S604).

  Next, the slot selection unit 121 does not correspond to any pool identifier 501 from the storage information table 530 (that is, all the pool identifiers 501 are “0” in the storage information table 530 of FIG. 3). The identifier 503 is searched (step S605). In other words, the slot selection unit 121 searches for the fan identifier 503 for satisfying the “first condition” described above.

  If the corresponding fan identifier 503 is detected (Yes in step S605), the process proceeds to step S608. If the corresponding fan identifier 503 is not detected (No in step S605), the process proceeds to step S606.

  Next, the slot selection unit 121 extracts a pool identifier 501 having the same value as the pool identifier 511 acquired in step S603 from the storage information table 530, and does not correspond to the pool identifier 501 (no association). 503 is searched (step S606). In other words, the slot selection unit 121 searches for the fan identifier 503 for satisfying the “second condition” described above.

  If the corresponding fan identifier 503 is detected (Yes in step S606), the process proceeds to step S608. If the corresponding fan identifier 503 is not detected (No in step S606), the process proceeds to step S607.

  Next, the slot selection unit 121 refers to the storage information table 530 and detects the fan identifier 503 that minimizes the number of types of the corresponding (associated) pool identifier 501 (step S607). In other words, the slot selection unit 121 searches for a fan identifier 503 that meets the above-described “third condition”.

  Next, the slot selection unit 121 adds the pool identifier 511 and the physical disk acquired in step S603 to the storage information record 539 corresponding to the detected fan identifier 503 and whose pool identifier 501 (physical disk identifier 502) is “0”. A pair with the identifier 512 is registered (step S608).

  Next, the slot selection unit 121 checks whether or not all the physical disk identifiers 512 corresponding to the pool identifier 511 selected in step S603 have been registered in the storage information record 539 (step S609).

  If all have been registered (Yes in step S609), the process proceeds to step S610. If an unregistered physical disk identifier 512 remains (No in step S609), the process returns to step S604.

  Next, the slot selection unit 121 confirms whether or not all the pool identifiers 511 have been selected (step S610).

  If all have been selected (Yes in step S610), the process proceeds to step S611. If an unselected pool identifier 511 remains (No in step S610), the process returns to step S603.

  Next, the slot selection unit 121 generates mounting information 520 (step S611). In step S607, the slot selection unit 121 may use the storage information table 530 including the storage information record 539 in which the set of the pool identifier 511 and the physical disk identifier 512 is registered as the mounting information 520 as it is.

  Next, the mounting information output unit 131 outputs the mounting information 520 to the outside (step S612).

  The effect of the present embodiment described above is that it is possible to obtain optimal physical disk arrangement information for power saving by suppressing the rotational speed of the fan 302 for cooling the physical disk 242.

  The reason is that, based on the pool update information 510 and the storage information table 530, the slot selection unit 120 (or the slot selection unit 121) corresponds to the physical disks 242 belonging to the same disk pool corresponding to different fans 302. This is because the mounting information 520 is generated and output by determining the relationship between the physical disk identifier 512 and the slot identifier 504.

<<< Second Embodiment >>>
Next, a second embodiment of the present invention will be described in detail with reference to the drawings. Hereinafter, the description overlapping with the above description is omitted as long as the description of the present embodiment is not obscured.

  FIG. 10 is a block diagram showing the configuration of a storage system including the layout design support apparatus 102 according to the second embodiment of the present invention.

  As shown in FIG. 10, the storage system includes an arrangement design support device 102 and a storage 202.

=== Layout Design Support Device 102 ==
As illustrated in FIG. 10, the layout design support apparatus 102 includes an update instruction input unit 112, a slot selection unit 122, and a mounting information output unit 132.

  The layout design support apparatus 102 may have the same configuration as the layout design support apparatus 100 shown in FIG. 1, so that the slot selection unit 122 includes an update instruction input unit 112 and a mounting information output unit 132.

  The hardware configuration of the layout design support apparatus 102 may be the same as that of the computer 700 shown in FIG. 5, for example.

=== Update Instruction Input Unit 112 ===
The update instruction input unit 112 receives the pool update information 810 input by the user and outputs the pool update information 810 to the slot selection unit 122.

  FIG. 11 is a diagram illustrating an example of the pool update information 810. As shown in FIG. 11, the pool update information 810 includes a set of a pool identifier 511, a RAID type 813, the number of disks 814 and a physical disk type 815.

  The number of disks 814 indicates the number of physical disks 242 to be added to the disk pool specified by the pool identifier 511 in the pool update information 810. The number of physical disks 814 is also referred to as “information about physical disks corresponding to the pool identifier 511 (first pool identifier)”. The number of disks 814 indicates the number of physical disks 242 constituting the disk pool when a disk pool specified by the pool identifier 511 is newly constructed. The number of disks 814 is the number of physical disks 242 to be added when adding physical disks 242 to the existing disk pool specified by the pool identifier 511.

  The RAID type 813 indicates a RAID type (for example, RAID2, RAID5, etc.).

  The physical disk type 815 indicates the type of the physical disk 242 (for example, SDD (Solid State Drive), HDD (Hard Disk Drive), etc.).

  The pool update information may further include work content information (for example, initial disk pool construction, disk pool expansion, disk pool expansion, etc.). Incidentally, the disk pool initial construction is a process (work) for constructing a disk pool in the storage 202 where no disk pool exists. The disk pool expansion is a process (work) for adding a physical disk 242 to an already existing disk pool. The disk pool expansion is a process (work) for adding a new disk pool to the storage 202 in which the disk pool already exists.

  The information input by the user may be the RAID type and the number and type of required physical disks 242 for the disk pool to be constructed or expanded. That is, the pool identifier 511 may be automatically generated by the update instruction input unit 112. These pieces of information may be input directly by the user, or may be selected when the layout design support apparatus 102 holds the device information (not shown) and the user inputs.

=== Slot Selection Unit 122 ===
The slot selection unit 122 acquires a MAID control information table and enclosure information (also referred to as storage information) from the storage 202. Details of the MAID control information table and the enclosure information will be described later.

  For example, the slot selection unit 122 acquires the MAID control information table and the enclosure information from the storage 202 via the communication unit 706 illustrated in FIG. The slot selection unit 122 may store the MAID control information table and the enclosure information in advance in the storage unit 702 or the storage device 703 shown in FIG. Further, the slot selection unit 122 may acquire the MAID control information table and the enclosure information input by the user via the output unit 705 shown in FIG. Furthermore, the slot selection unit 122 may acquire the enclosure information recorded on the recording medium 707 shown in FIG. 5 via the storage device 703 shown in FIG.

  Next, the slot selection unit 122 updates the acquired enclosure information based on the pool update information 810 and the MAID control information table. Each of the physical disk identifier 502 and the fan identifier 503 has a relationship for enabling the rotation speed of the fan 302 to be reduced when any of the physical disks 242 is set in the power saving mode. The enclosure information is updated so that the relationship is established.

  Next, the slot selection unit 122 outputs the updated enclosure information to the mounting information output unit 132.

=== Mounting Information Output Unit 132 ===
The mounting information output unit 132 generates and outputs mounting information 820 based on the enclosure information received from the slot selection unit 122.

  For example, the mounting information output unit 132 uses the output unit 705 shown in FIG. 5 to present the mounting information 820 to the user. Further, the mounting information output unit 132 may transmit the mounting information 820 to the storage 202 via the communication unit 706 shown in FIG. Furthermore, the mounting information output unit 132 may record the mounting information 820 on the recording medium 707 illustrated in FIG. 5 via the storage device 703 illustrated in FIG.

  FIG. 12 is a diagram illustrating an example of the mounting information 820. As shown in FIG. 12, the mounting information 820 includes a set of a slot identifier 504, a physical disk type 815, and a pool identifier 501.

  The mounting information output unit 132 may output the enclosure information received from the slot selection unit 122 as mounting information. Alternatively, the mounting information output unit 132 may output the mounting information 820 and an arbitrary portion of the enclosure information received from the slot selection unit 122.

=== Storage 202 ==
The storage 202 includes a storage unit 212, a control unit 222, and a physical disk group 240. The physical disk group 240 is equivalent to the physical disk group 240 shown in FIG.

=== Storage 212 ===
As illustrated in FIG. 10, the storage unit 212 stores a MAID control information table 840.

  The storage unit 212 also stores a fan information table 850, a pool information table 860, a physical disk information table 870, and a slot information table 880 as enclosure information (not shown). Enclosure information is a generic name for the fan information table 850, the pool information table 860, the physical disk information table 870, and the slot information table 880, or information stored in these tables. In other words, the enclosure information is storage information indicating a correspondence between the slot identifier 504 (mounting area identifier), the fan identifier 503 (cooling means identifier), the mounting state information, and the pool identifier 501 (second pool identifier). Here, the mounting status information may be either the physical disk identifier 502 or the physical disk mounting status 886.

=== MAID Control Information Table 840 ===
FIG. 13 is a diagram illustrating an example of the MAID control information table 840. As shown in FIG. 13, the MAID control information table 840 includes a MAID identifier (also referred to as a process identifier) 841.

  The MAID identifier 841 is an identifier that specifies a MAID control method in the storage 202. In other words, the MAID identifier 841 is an identifier for commonly recognizing each of the predefined MAID control methods between the layout design support apparatus 102 and the storage 202. Based on this MAID identifier 841, the layout design support apparatus 102 changes the procedure for obtaining the optimal disk mounting slot (slot 243) from the viewpoint of power saving by the MAID function.

=== Fan Information Table 850 ===
FIG. 14 is a diagram illustrating an example of the fan information table 850. As shown in FIG. 15, the fan information table 850 includes a plurality of fan information records 859. The fan information record 859 includes a fan identifier 503, a slot identifier 504, and a fan speed.

  The fan identifier 503 is an identifier that identifies each fan 302. The slot identifier 504 is an identifier that identifies each of the slots 243 that is a cooling target of the fan 302 identified by the fan identifier 503.

  The fan rotation speed is the rotation speed of the fan 302 specified by the fan identifier 503.

=== Pool information table 860 ==
FIG. 15 is a diagram illustrating an example of the pool information table 860. As illustrated in FIG. 15, the pool information table 860 includes a plurality of pool information records 869. The pool information record 869 includes a pool identifier 501, a RAID type 863, the number of disks 864, and a physical disk identifier 502.

  The RAID type 863 indicates the RAID type 863 of the disk pool (not shown) specified by the pool identifier 501. The number of disks 864 indicates the number of physical disks 242 that make up the disk pool specified by the pool identifier 501. The physical disk identifier 502 is an identifier of the physical disk 242 that constructs the disk pool specified by the pool identifier 501.

=== Physical disk information table 870 ===
FIG. 16 is a diagram showing an example of the physical disk information table 870. As shown in FIG. 16, the physical disk information table 870 includes a plurality of physical disk information records 879. The physical disk information record 879 includes a physical disk identifier 502, a physical disk type 875, a pool identifier 501, a physical disk operating state, and a physical disk temperature. The pool identifier 501 is a pool identifier 501 corresponding to the physical disk 242 specified by the physical disk identifier 502. The physical disk operating state is the operating state of the physical disk 242 specified by the physical disk identifier 502, “on” indicates that the physical disk 242 is operating, and “off” indicates that the physical disk 242 is operating. Indicates not. The physical disk temperature is the temperature of the physical disk 242 specified by the physical disk identifier 502.

=== Slot Information Table 880 ===
FIG. 17 is a diagram illustrating an example of the slot information table 880. As shown in FIG. 17, the slot information table 880 includes a plurality of slot information records 889. The slot information record 889 includes a slot identifier 504, a physical disk mounting state (also referred to as mounting state information) 886, and a physical disk identifier 502. The slot identifier 504 is an identifier that identifies each of the slots 243. The physical disk mounting state 886 indicates the mounting state of the physical disk 242 in the slot 243 specified by the slot identifier 504. When “on”, it indicates that the physical disk 242 is mounted in the slot 243 “off”. "Indicates that no physical disk 242 is mounted in the slot 243. The physical disk identifier 502 is the physical disk identifier 502 of the physical disk 242 installed in the slot 243 specified by the slot identifier 504.

=== Control Unit 222 ===
The control unit 222 controls the entire storage 202 to realize a function as a storage.

  Further, the control unit 222 transmits the MAID identifier 841 and the enclosure information to the management server 101 in response to a request from the management server 101.

  As shown in FIG. 10, the control unit 222 includes a slot mounting state monitoring unit (also referred to as mounting area state monitoring means) 380, a fan control unit 350, a physical disk control unit 340, a physical disk temperature monitoring unit 370, and a pool construction unit 360. including.

=== Slot Mounting Status Monitoring Unit 380 ===
The slot mounting state monitoring unit 380 monitors the physical disk group 240 and detects that a new physical disk 242 is mounted in an empty slot 243. Then, the slot mounting state monitoring unit 380 updates the physical disk mounting state 886 and the physical disk identifier 502 in the slot information table 880 based on the mounting information 820 and the detection thereof. Further, the slot mounting state monitoring unit 380 adds a new physical disk information record 879 to the physical disk information table 870 based on the mounting information 820 and the detected information.

  For example, the slot mounting state monitoring unit 380 receives the mounting information 820 from the layout design support apparatus 102. Moreover, the slot mounting state monitoring unit 380 may acquire the mounting information 820 input by the user via an input unit (not shown).

  The physical disk information table 870 illustrated in FIG. 16 indicates the physical disk information table 870 in a state where the user has added the physical disk 242 according to the mounting information 820 generated based on the pool update information 810 illustrated in FIG. .

  The slot information table 880 shown in FIG. 17 shows a part of the slot information table 880 in a state where the user has added the physical disk 242 according to the mounting information 820 generated based on the pool update information 810 shown in FIG. Yes.

=== Fan Controller 350 ===
The fan control unit 350 controls the rotation speed of the fan 302. Then, the fan control unit 350 updates the fan rotation speed in the fan information table 850 based on the control result.

=== Physical Disk Control Unit 340 ===
The physical disk control unit 340 controls the rotation of the physical disk 242. Then, the physical disk control unit 340 updates the physical disk operating state of the physical disk information table 870 based on the control result.

=== Physical Disk Temperature Monitoring Unit 370 ===
The physical disk temperature monitoring unit 370 monitors the temperature of the physical disk 242. Then, the physical disk temperature monitoring unit 370 updates the physical disk information table 870 physical disk temperature based on the monitoring result, instructs the fan control unit 350 to control fan rotation, and instructs the physical disk control unit 340 to change the physical disk. The control of the rotational speed of 242 is instructed.

=== Pool Construction Unit 360 ===
The pool constructing unit 360 constructs a disk pool (not shown) from the physical disk group 240 based on the mounting information 820 and the physical disk information table 870. Then, the pool construction unit 360 generates or updates the pool information table 860 so as to correspond to the constructed disk pool.

  For example, the pool construction unit 360 receives the mounting information 820 from the layout design support apparatus 102. In addition, the pool construction unit 360 may acquire the mounting information 820 input by the user via an input unit (not shown).

  Next, the operation of the present embodiment will be described in detail with reference to the drawings.

  18 to 22 are flowcharts showing the operation of this embodiment. Note that the processing according to this flowchart may be executed based on the program control by the CPU 701 described above. Further, the step name of the process is described by a symbol as in S601.

  FIG. 18 is a flowchart showing the operation of the update instruction input unit 112 in the present embodiment.

  The update instruction input unit 112 receives the pool update information 810 input by the user (step S621).

  Next, the update instruction input unit 112 outputs the pool update information 810 to the slot selection unit 122 (step S622). Then, the process ends.

  FIG. 19 is a flowchart showing the operation of the slot selection unit 122 in the present embodiment.

  The slot selection unit 122 receives the pool update information 810 from the update instruction input unit 112 (step S631).

  Next, the slot selection unit 122 acquires the MAID identifier 841 and the enclosure information of the MAID control information table 840 from the storage 202 (Step S632).

  Here, the enclosure information is a duplicate of the fan information table 850, a duplicate of the pool information table 860, a duplicate of the physical disk information table 870, and a duplicate of the slot information table 880. In other words, in the following description, the slot selection unit 122 refers to and updates these duplicates. However, in the following description, “duplication” is omitted and they are simply referred to as a fan information table 850, a pool information table 860, a physical disk information table 870, and a slot information table 880.

  Next, the slot selection unit 122 confirms the MAID identifier 841 (step S633). Here, it is assumed that the MAID identifier 841 is “M01”. “M01” of the MAID identifier 841 indicates a MAID control method in which one of the physical disks 242 constituting a redundant RAID disk pool is stopped to save power.

  If MAID identifier 841 is “M01” (YES in step S633), the process proceeds to step S634. If the MAID identifier 841 is not “M01” (NO in step S633), the process proceeds to a step (described later) corresponding to the MAID identifier 841.

  Next, the slot selection unit 122 calculates the total number of disks corresponding to the pool identifier 511 whose processing to be executed is disk pool expansion among the pool identifiers 511 included in the pool update information 810. (Step S634). The slot selection unit 122 adds the number of disks 814 corresponding to the pool identifier 511 and the number of disks 864 corresponding to the pool identifier 501 having the same value as the pool identifier 511 to calculate the total number of disks. For example, when there is a pool information record 869 including the same pool identifier 501 as the pool identifier 511, the slot selection unit 122 sets the pool identifier 511 to “a pool identifier 511 whose process to be executed is a disk pool extension”. Judge. Further, when the work content is included in the pool update information, the slot selection unit 122 determines that the work content is the pool identifier 511 whose disk pool expansion is “pool identifier 511 whose execution process is disk pool expansion”. You may make it do.

  Next, the slot selection unit 122 selects a pool identifier 511 from the pool update information 810 based on the number of disks 814 and the total number of disks calculated in step S633 (step S635). For example, the slot selection unit 122 compares the total number of disks for the pool identifier 511 with the corresponding total number of disks and the number of disks 814 for the pool identifier 511 with no corresponding total number of disks. Next, the slot selection unit 122 selects the pool identifier 511 in descending order of the total number of disks and the number of disks 814.

  Steps S604 to S610 are equivalent to steps S604 to S612 shown in FIGS. However, the pool update information 510, the mount information 520, and the storage information table 530 in FIGS. 8 and 9 correspond to the pool update information 810, the mount information 820, and the enclosure information in FIG. 19, respectively.

  Next, the slot selection unit 122 updates the enclosure information based on the selected pool identifier 511 (step S637).

  Specifically, the slot selection unit 122 sets the physical disk mounting state 886 of the slot identifier 504 corresponding to the selected pool identifier 511 and the corresponding physical disk mounting state 886 to “0” to “1”. . Further, the slot selection unit 122 adds a new physical disk information record 879 with the physical disk type 815 as the physical disk type 875 and the pool identifier 511 as the pool identifier 501 in the physical disk information table 870. Further, the slot selection unit 122 adds or updates the pool information record 869 based on the physical disk identifier 502.

  Next, steps corresponding to the MAID identifier 841 when the MAID identifier 841 is not “M01” will be described.

  For example, it is assumed that the MAID identifier 841 is “M02”. “M02” of the MAID identifier 841 indicates a MAID control method in which power is saved by stopping in RAID units (also called subgroups) in a disk pool composed of a plurality of RAIDs.

  In this case, the pool update information may include a first subgroup identifier (not shown) corresponding to a plurality of specific physical disks 242 corresponding to the pool identifier 511 in addition to the pool update information 810.

  The pool information table may further include a correspondence with a second subgroup identifier (not shown) corresponding to a plurality of specific physical disks 242 corresponding to the pool identifier 501 in the pool information table 860.

  Then, the slot selection unit 122 further generates the mounting information 820 so as to reduce the number of the same first subgroup identifier and the second subgroup identifier corresponding to the specific fan identifier 503. Good. Hereinafter, reducing the number of the same first subgroup identifier and the second subgroup identifier corresponding to a specific fan identifier 503 is referred to as a fourth condition. The slot selection unit 122 may prioritize the fourth condition after the second condition and before the third condition to generate the mounting information 820.

  20 and 21 are flowcharts showing a first modification of the operation of the slot selection unit 122 in the present embodiment.

  As illustrated in FIGS. 20 and 21, the slot selection unit 122 may execute Step 633 after Step S606. In that case, the following operation may be performed.

  The slot selection unit 122 checks whether or not the MAID identifier 841 is “M01” (step S633). If the MAID identifier 841 is “M01” (YES in step S633), the process proceeds to step S607. If the MAID identifier 841 is not “M01” (NO in step S633), the process proceeds to step S636.

  Next, the slot selection unit 122 confirms whether or not the MAID identifier 841 is “M02” (step S636).

  If MAID identifier 841 is “M02” (YES in step S636), the process proceeds to step S637. If the MAID identifier 841 is not “M02” (NO in step S636), the process proceeds to a step (not shown) corresponding to the MAID identifier 841 that is neither “M01” nor “M02”.

  Next, the slot selection unit 122 searches the enclosure information for a fan identifier 503 that does not correspond to the pool identifier 501 having the same value as the pool identifier 511 acquired in step S634 (step S637). In other words, the slot selection unit 122 searches for the fan identifier 503 that meets the above-mentioned “fourth condition”.

  If the corresponding fan identifier 503 is detected (Yes in step S637), the process proceeds to step S608. If the corresponding fan identifier 503 is not detected (No in step S637), the process proceeds to step S607.

  The above is the flowchart showing the first modification of the operation of the slot selection unit 122 in the present embodiment.

  Next, a second modification of the operation of the slot selection unit 122 in this embodiment will be described.

  In step 607, the slot selection unit 122 further selects the fan identifier 503 with the smallest number corresponding to the pool identifier 501 corresponding to the physical disk 242 whose physical disk type 875 is “HDD”. When there are a plurality of fan identifiers 503 having the same number of corresponding pool identifiers 501, the slot selecting unit 122 corresponds to the pool identifier 501 corresponding to the physical disk 242 whose physical disk type 875 is “SSD”. The fan identifier 503 having the smallest number is selected.

  Next, a third modification of the operation of the slot selection unit 122 in the present embodiment will be described.

  In step S634, the slot selection unit 122 may further preferentially select the pool identifier 511 whose physical disk type 815 is “HDD”. For example, the slot selecting unit 122 may select the pool identifier 511 having the physical disk type 815 “SDD” after selecting all the pool identifiers 511 having the physical disk type 815 “HDD”.

  FIG. 22 is a flowchart showing the operation of the mounting information output unit 132 in the present embodiment.

  The mounting information output unit 132 receives the updated enclosure information from the slot selection unit 122 (step S651).

  Next, the mounting information output unit 132 generates and outputs mounting information 820 based on the received disclosure information (step S652). Then, the process ends.

  The above is the description of the operation of the present embodiment.

  Based on the mounting information 820 output from the mounting information output unit 132 of the layout design support apparatus 102, the user assigns the physical disk 242 of the type specified by the physical disk type 815 to the slot 243 specified by the slot identifier 504. Mount. When the user mounts the physical disk 242, the user may input the pool identifier 501 corresponding to the physical disk 242 to the storage 202 by means not shown.

  In addition to the effects of the first embodiment, the first effect of the present embodiment described above is power saving by suppressing the number of rotations of the fan 302 in response to various power saving methods for the disk pool. This makes it possible to obtain the optimum physical disk 242 arrangement information.

  This is because the slot selection unit 122 changes the detection method of the fan identifier 503 based on the MAID identifier 841.

  The second effect of the present embodiment described above is optimal for power saving by suppressing the rotational speed of the fan 302 for cooling the physical disk 242 even when the physical disk 242 is added to the existing disk pool. It is possible to obtain the arrangement information of the physical disk 242.

  The reason is that the slot selection unit 122 selects the pool identifier 511 from the pool update information 810 based on the total number of disks and the number of disks 814 corresponding to the pool identifier 511 whose processing is disk pool expansion. Because.

  Each component described in each of the above embodiments does not necessarily have to be individually independent. For example, each component may be realized as a module with a plurality of components. In addition, each component may be realized by a plurality of modules. Each component may be configured such that a certain component is a part of another component. Each component may be configured such that a part of a certain component overlaps a part of another component.

  In the embodiments described above, each component and a module that realizes each component may be realized as hardware as necessary. Moreover, each component and the module which implement | achieves each component may be implement | achieved by a computer and a program. Each component and a module that realizes each component may be realized by mixing hardware modules, computers, and programs.

  The program is provided by being recorded in a non-volatile computer-readable recording medium such as a magnetic disk or a semiconductor memory, and is read by the computer when the computer is started up. The read program causes the computer to function as a component in each of the above-described embodiments by controlling the operation of the computer.

  Further, in each of the embodiments described above, a plurality of operations are described in order in the form of a flowchart, but the described order does not limit the order in which the plurality of operations are executed. For this reason, when each embodiment is implemented, the order of the plurality of operations can be changed within a range that does not hinder the contents.

  Furthermore, in each embodiment described above, a plurality of operations are not limited to being executed at different timings. For example, another operation may occur during the execution of a certain operation, or the execution timing of a certain operation and another operation may partially or entirely overlap.

  Furthermore, in each of the embodiments described above, a certain operation is described as a trigger for another operation, but the description does not limit all relationships between the certain operation and the other operations. For this reason, when each embodiment is implemented, the relationship between the plurality of operations can be changed within a range that does not hinder the contents. The specific description of each operation of each component does not limit each operation of each component. For this reason, each specific operation | movement of each component may be changed in the range which does not cause trouble with respect to a functional, performance, and other characteristic in implementing each embodiment.

  As mentioned above, although this invention was demonstrated with reference to each embodiment, this invention is not limited to the said embodiment. Various changes that can be understood by those skilled in the art can be made to the configuration and details of the present invention within the scope of the present invention.

  The present invention relates to an apparatus or system (for example, a storage system) that stores a plurality of power-saving devices (for example, physical disks) that are cooled by a cooling means (for example, a fan) in a storage enclosure (enclosure). ).

DESCRIPTION OF SYMBOLS 100 Layout design support apparatus 101 Management server 102 Layout design support apparatus 111 Update instruction input part 112 Update instruction input part 120 Slot selection part 121 Slot selection part 122 Slot selection part 131 Mount information output part 132 Mount information output part 201 Storage 202 Storage 211 Storage unit 212 Storage unit 221 Control unit 222 Control unit 240 Physical disk group 241 Enclosure 242 Physical disk 243 Slot 302 Fan 340 Physical disk control unit 350 Fan control unit 360 Pool construction unit 370 Physical disk temperature monitoring unit 380 Slot mounting state monitoring unit 501 Pool identifier 502 Physical disk identifier 503 Fan identifier 504 Slot identifier 510 Pool update information 511 Pool identifier 512 Physical disk identifier 20 mounting information 530 storage information table 539 storage information record 700 computer 701 CPU
702 Storage unit 703 Storage device 704 Input unit 705 Output unit 706 Communication unit 707 Recording medium 810 Pool update information 813 RAID type 814 Number of disks 815 Physical disk type 820 Mounted information 840 MAID control information table 841 MAID identifier 850 Fan information table 859 Fan information Record 860 Pool information table 863 RAID type 864 Number of disks 869 Pool information record 870 Physical disk information table 875 Physical disk type 879 Physical disk information record 880 Slot information table 886 Physical disk mounting status 889 Slot information record

Claims (8)

Corresponding to a plurality of physical disks, indicating the group of the physical disks, mounted in the first pool identifier, and pool update information including the information on the first physical disks that corresponds to a pool identifier, a physical disk A mounting area identifier for specifying a mounting area to be performed, a cooling means identifier for specifying a cooling means corresponding to each of the plurality of mounting areas, mounting state information indicating a mounting state of a physical disk in the mounting area, and the plurality of mounting areas When any one of the physical disks is set in a power saving mode based on storage information indicating a correspondence with the second pool identifier corresponding to the physical disk mounted on the first disk, the first pool identifier and the first pool identifier Priority is given to increasing the cooling means identifier corresponding to any one of the two pool identifiers, and the specific cooling means identification Priority is given to further reducing the number of the same first pool identifier and second pool identifier corresponding to the first pool identifier and the second pool identifier corresponding to the specific cooling means identifier. The mounting that outputs the mounting information indicating the relationship between each of the physical disks corresponding to the first pool identifier and each of the mounting area identifiers is given priority lastly to further reduce the total number of the pool identifiers. Including area selection means,
Placement design support device. The mounting area selecting means selects each of the physical disks corresponding to the first pool identifier in descending order of the number of physical disks corresponding to the first pool identifier corresponding to the specific first pool identifier. The arrangement design support apparatus according to claim 1 , wherein a relationship with each of the mounting area identifiers is determined. When the specific first pool identifier and the second pool identifier match, the mounting area selecting unit matches the number of physical disks corresponding to the specific first pool identifier. Determining the relationship between each of the physical disks corresponding to the first pool identifier and each of the mounted area identifiers in descending order of the number obtained by adding the number of physical disks corresponding to the pool identifier. The arrangement design support apparatus according to claim 1 or 2 . The layout design support according to any one of claims 1 to 3 , further comprising a mounting area state monitoring unit that collects mounting state information of physical disks in the mounting area and reflects the information in the storage information. apparatus. The pool update information further includes a first subgroup identifier corresponding to a plurality of specific physical disks corresponding to the first pool identifier,
The storage information corresponds to the mounting area identifier, the cooling means identifier, the mounting state information, the second pool identifier, and a plurality of specific physical disks corresponding to the second pool identifier, Corresponding to the subgroup identifier of
The mounting area selecting unit further sets the specific cooling unit identifier to reduce the number of the same first subgroup identifier and the second subgroup identifier corresponding to the specific cooling unit identifier. the following reducing more the number of corresponding identical the first pool identifier and the second pool identifier, and certain of said cooling means and said corresponding identifier first pool identifier and the second The layout design support apparatus according to claim 1, wherein the mounting information is generated prior to further reducing the total number of pool identifiers.



Corresponding to a plurality of physical disks, indicating the group of the physical disks, mounted in the first pool identifier, and pool update information including the information on the first physical disks that corresponds to a pool identifier, a physical disk A mounting area identifier for specifying a mounting area to be performed, a cooling means identifier for specifying a cooling means corresponding to each of the plurality of mounting areas, mounting state information indicating a mounting state of a physical disk in the mounting area, and the plurality of mounting areas When any one of the physical disks is set in a power saving mode based on storage information indicating a correspondence with the second pool identifier corresponding to the physical disk mounted on the first disk, the first pool identifier and the first pool identifier Priority is given to increasing the cooling means identifier corresponding to any one of the two pool identifiers, and the specific cooling means identification Priority is given to further reducing the number of the same first pool identifier and second pool identifier corresponding to the first pool identifier and the second pool identifier corresponding to the specific cooling means identifier. The mounting that outputs the mounting information indicating the relationship between each of the physical disks corresponding to the first pool identifier and each of the mounting area identifiers is given priority lastly to further reduce the total number of the pool identifiers. Area selection means,
Generating the storage information and transmitting to the mounting area selection means,
Storage system. Corresponding to a plurality of physical disks, indicating the group of the physical disks, mounted in the first pool identifier, and pool update information including the information on the first physical disks that corresponds to a pool identifier, a physical disk A mounting area identifier for specifying a mounting area to be performed, a cooling means identifier for specifying a cooling means corresponding to each of the plurality of mounting areas, mounting state information indicating a mounting state of a physical disk in the mounting area, and the plurality of mounting areas The cooling means corresponding to either the first pool identifier or the second pool identifier based on storage information indicating the correspondence with the second pool identifier corresponding to the physical disk mounted on The highest priority is to increase the identifier, the same first pool identifier and the second pool identifier corresponding to the specific cooling means identifier The priority is given to reducing the number of pool identifiers further, and the last is to further reduce the total number of the first pool identifier and the second pool identifier corresponding to the specific cooling means identifier. preferentially, respectively layout design support method for outputting a mounting information indicating a relationship between each of the mounting area identifier of the physical disk corresponding to the first pool identifier. Corresponding to a plurality of physical disks, indicating the group of the physical disks, mounted in the first pool identifier, and pool update information including the information on the first physical disks that corresponds to a pool identifier, a physical disk A mounting area identifier for specifying a mounting area to be performed, a cooling means identifier for specifying a cooling means corresponding to each of the plurality of mounting areas, mounting state information indicating a mounting state of a physical disk in the mounting area, and the plurality of mounting areas When any one of the physical disks is set in a power saving mode based on storage information indicating a correspondence with the second pool identifier corresponding to the physical disk mounted on the first disk, the first pool identifier and the first pool identifier Priority is given to increasing the cooling means identifier corresponding to any one of the two pool identifiers, and the specific cooling means identification Priority is given to further reducing the number of the same first pool identifier and second pool identifier corresponding to the first pool identifier and the second pool identifier corresponding to the specific cooling means identifier. The process of outputting mounting information indicating the relationship between each of the physical disks corresponding to the first pool identifier and each of the mounting area identifiers , giving priority to further reducing the total number of pool identifiers of A program that causes a computer to execute.

Images