THIN PROVISIONING OF VIRTUAL STORAGE SYSTEM

• US 20160004476A1
• Filed: 07/03/2013
• Published: 01/07/2016
• Est. Priority Date: 07/03/2013
• Status: Abandoned Application

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: EMARU, Hironori
• Application Number:
  US14/770,577
• Publication Number:
  US 20160004476A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 12/0802 Addressing of a memory level in which the access to the desired data or data block requires associative addressing means, e.g. caches
• CPC Class Codes: G06F 13/102 where the programme performs an interfacing function, e.g. device driver G06F13/105 takes precedence; scheduling within device drivers G06F9/52; contention policies within device drivers G06F9/4881
• CPC Class Codes: G06F 2009/45579 I/O management, e.g. providing access to device drivers or storage
• CPC Class Codes: G06F 2212/152 Virtualized environment, e.g. logically partitioned system
• CPC Class Codes: G06F 3/061 Improving I/O performance
• CPC Class Codes: G06F 3/0653 Monitoring storage devices or systems
• CPC Class Codes: G06F 3/067 Distributed or networked storage systems, e.g. storage area networks [SAN], network attached storage [NAS]
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

Exemplary embodiments of the invention are directed to the effective utilization of storage resources. In accordance with one aspect, a first computer comprises: a memory; and a processor being operable to manage a virtual storage system, formed by one or more physical storage systems, to be provided to a plurality of second computers, the virtual storage system including a plurality of virtual volumes and a plurality of other types of virtual elements. The processor is operable to monitor performance of the plurality of virtual volumes, and to calculate amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system, based on the monitored performance of the plurality of virtual volumes, during operation of the one or more physical storage systems involving accesses from the plurality of second computers to the virtual storage system.

Claims

1. A first computer comprising:

a memory; and

a processor being operable to manage a virtual storage system, formed by one or more physical storage systems, to be provided to a plurality of second computers, the virtual storage system including a plurality of virtual volumes and a plurality of other types of virtual elements;

wherein the processor is operable to monitor performance of the plurality of virtual volumes, and to calculate amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system, based on the monitored performance of the plurality of virtual volumes, during operation of the one or more physical storage systems involving accesses from the plurality of second computers to the virtual storage system.

2. The first computer according to claim 1,

wherein the plurality of other types of virtual elements comprise at least one of virtual port, virtual cache, or virtual storage area.

3. The first computer according to claim 2,

wherein for virtual port, the processor is operable to calculate an amount of virtual port to be additionally assigned to the virtual storage system when a bandwidth of the virtual port exceeds a preset bandwidth threshold based on the monitored performance;

wherein for virtual cache, the processor is operable to calculate an amount of virtual cache to be additionally assigned to the virtual storage system when a cache hit ratio of the virtual port exceeds a preset cache hit ratio threshold based on the monitored performance; and

wherein for virtual storage area, the processor is operable to calculate an amount of virtual storage area to be additionally assigned to the virtual storage system when a capacity of the virtual storage area exceeds a preset capacity threshold based on the monitored performance.

4. The first computer according to claim 1,

wherein the processor is operable to create a virtual storage table showing, for each virtual volume, amounts of the other types of virtual elements assigned, amounts of the other types of virtual elements used, storage pool identification of a storage pool, physical storage resources which are configured and physical storage resources which are provisioned in the storage pool to provide the other types of virtual elements to the virtual storage system;

and

wherein the virtual storage table is used to calculate the amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system.

5. The first computer according to claim 4,

wherein the virtual storage system is formed by one physical storage system;

and

wherein physical storage resources are provisioned from one storage pool corresponding to the one physical storage system.

6. The first computer according to claim 4,

wherein the virtual storage system is formed by a plurality of physical storage systems;

wherein physical storage resources are provisioned from a plurality of storage pools corresponding to the plurality of physical storage systems; and

wherein the virtual storage table is used to identify, for a given virtual volume, the corresponding storage pool from which storage resources are to be used to provide the calculated amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system.

7. A system comprising:

a plurality of second computers;

a plurality of physical storage systems; and

a first computer which includes a memory and a processor being operable to manage a virtual storage system, formed by one or more physical storage systems of the plurality of physical storage systems, to be provided to the plurality of second computers, the virtual storage system including a plurality of virtual volumes and a plurality of other types of virtual elements;

wherein the processor is operable to monitor performance of the plurality of virtual volumes, and to perform thin provisioning of the plurality of other types of virtual elements to the virtual storage system, based on the monitored performance of the plurality of virtual volumes, during operation of the one or more physical storage systems involving accesses from the plurality of second computers to the virtual storage system.

8. The system according to claim 7,

wherein performing thin provisioning comprises calculating amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system.

9. The system according to claim 8,

wherein the plurality of other types of virtual elements comprise at least one of virtual port, virtual cache, or virtual storage area.

10. The system according to claim 9,

wherein for virtual port, the processor is operable to calculate an amount of virtual port to be additionally assigned to the virtual storage system when a bandwidth of the virtual port exceeds a preset bandwidth threshold based on the monitored performance;

wherein for virtual cache, the processor is operable to calculate an amount of virtual cache to be additionally assigned to the virtual storage system when a cache hit ratio of the virtual port exceeds a preset cache hit ratio threshold based on the monitored performance; and

wherein for virtual storage area, the processor is operable to calculate an amount of virtual storage area to be additionally assigned to the virtual storage system when a capacity of the virtual storage area exceeds a preset capacity threshold based on the monitored performance.

11. The system according to claim 8,

wherein the processor is operable to create a virtual storage table showing, for each virtual volume, amounts of the other types of virtual elements assigned, amounts of the other types of virtual elements used, storage pool identification of a storage pool, physical storage resources which are configured and physical storage resources which are provisioned in the storage pool to provide the other types of virtual elements to the virtual storage system;

and

wherein the virtual storage table is used to calculate the amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system.

12. The system according to claim 11,

wherein the virtual storage system is formed by one physical storage system;

and

wherein physical storage resources are provisioned from one storage pool corresponding to the one physical storage system.

13. The system according to claim 11,

wherein the virtual storage system is formed by a plurality of physical storage systems;

wherein physical storage resources are provisioned from a plurality of storage pools corresponding to the plurality of physical storage systems; and

wherein the virtual storage table is used to identify, for a given virtual volume, the corresponding storage pool from which storage resources are to be used to provide the calculated amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system.

14. A non-transitory computer-readable storage medium storing a plurality of instructions for controlling a data processor to manage a virtual storage system, formed by one or more physical storage systems, to be provided to a plurality of computers, the virtual storage system including a plurality of virtual volumes and a plurality of other types of virtual elements, the plurality of instructions comprising:

instructions that cause the data processor to monitor performance of the plurality of virtual volumes, and to calculate amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system, based on the monitored performance of the plurality of virtual volumes, during operation of the one or more physical storage systems involving accesses from the plurality of second computers to the virtual storage system.

15. The non-transitory computer-readable storage medium according to claim 14,

wherein the plurality of other types of virtual elements comprise at least one of virtual port, virtual cache, or virtual storage area.

16. The non-transitory computer-readable storage medium according to claim 14,

wherein for virtual port, the instructions that cause the data processor to calculate comprise instructions that cause the data processor to calculate an amount of virtual port to be additionally assigned to the virtual storage system when a bandwidth of the virtual port exceeds a preset bandwidth threshold based on the monitored performance;

wherein for virtual cache, the instructions that cause the data processor to calculate comprise instructions that cause the data processor to calculate an amount of virtual cache to be additionally assigned to the virtual storage system when a cache hit ratio of the virtual port exceeds a preset cache hit ratio threshold based on the monitored performance; and

wherein for virtual storage area, the instructions that cause the data processor to calculate comprise instructions that cause the data processor to calculate an amount of virtual storage area to be additionally assigned to the virtual storage system when a capacity of the virtual storage area exceeds a preset capacity threshold based on the monitored performance.

17. The non-transitory computer-readable storage medium according to claim 14, wherein the plurality of instructions further comprise:

instructions that cause the data processor to create a virtual storage table showing, for each virtual volume, amounts of the other types of virtual elements assigned, amounts of the other types of virtual elements used, storage pool identification of a storage pool, physical storage resources which are configured and physical storage resources which are provisioned in the storage pool to provide the other types of virtual elements to the virtual storage system; and

wherein the virtual storage table is used to calculate the amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system.

18. The non-transitory computer-readable storage medium according to claim 17,

wherein the virtual storage system is formed by one physical storage system;

and

wherein physical storage resources are provisioned from one storage pool corresponding to the one physical storage system.

19. The non-transitory computer-readable storage medium according to claim 17,

wherein the virtual storage system is formed by a plurality of physical storage systems;

wherein physical storage resources are provisioned from a plurality of storage pools corresponding to the plurality of physical storage systems; and

wherein the virtual storage table is used to identify, for a given virtual volume, the corresponding storage pool from which storage resources are to be used to provide the calculated amounts of the plurality of other types of virtual elements to be additionally assigned to the virtual storage system.