Method and apparatus for seamless management for disaster recovery

• US 8,412,977 B2
• Filed: 01/10/2012
• Issued: 04/02/2013
• Est. Priority Date: 03/11/2003
• Status: Expired due to Fees

• Current Assignee: Hitachi, Ltd.
• Original Assignee: Hitachi, Ltd.
• Inventors: Fujibayashi, Akira
• Primary Examiner(s): DUNCAN, MARC M
• Application Number:
  US13/346,924
• Publication Number:
  US 20120131297A1
• Time in Patent Office: 448 Days
• Field of Search: 714/6.1, 714/6.23, 714/6.3, 714/6.31, 707/640, 707/655, 707/659
• US Class Current: 714/6.1
• CPC Class Codes: G06F 11/008 Reliability or availability analysis
• CPC Class Codes: G06F 11/20 using active fault-masking, e.g. by switching out faulty elements or by switching in spare elements
• CPC Class Codes: G06F 11/2069 Management of state, configuration or failover
• CPC Class Codes: G06F 11/2094 Redundant storage or storage space G06F11/2056 takes precedence
• CPC Class Codes: G06F 16/275 Synchronous replication
• CPC Class Codes: H04L 1/22 using redundant apparatus to increase reliability
• CPC Class Codes: Y10S 707/99953 Recoverability

Abstract

A method, apparatus, article of manufacture, and system are presented for establishing redundant computer resources. According to one embodiment, in a system including a plurality of processor devices and a plurality of storage devices, the processor devices, the storage devices and the management server being connected via a network, the method comprises storing device information relating to the processor devices and the storage devices and topology information relating to topology of the network, identifying at least one primary computer resource, selecting at least one secondary computer resource suitable to serve as a redundant resource corresponding to the at least one primary computer resource based on the device information and the topology information, and assigning the at least one secondary computer resource as a redundant resource corresponding to the at least one primary computer resource.

Claims

1. A management server coupled to processor devices and storage devices, comprising:

a memory having storage device information relating to the storage devices and mapping information between application programs executed by the processor devices and portions of storage implemented in the storage devices being utilized by the application programs;

a receiver for receiving a command specifying a first application program executed by a first processor device, from the application programs and the processor devices;

a controller for specifying a first storage portion in a first storage devices from the storage devices, based on the mapping information and for specifying a candidate storage portion(s) which is capable to store replica of data in the first storage portion in a candidate storage device(s) of the storage devices, based on the storage device information; and

an output for displaying information about the candidate storage portion(s) and the candidate storage device(s),

wherein the candidate storage portion(s) and the candidate storage device(s) are filtered by policies.

2. The management server according to claim 1,

wherein the output displays a visual topology of the first processor device, the first storage device and the candidate storage device(s).

3. The management server according to claim 1,

wherein the controller selects one of the candidate storage portion(s) for storing the replica of data in the first storage portion by a remote mirroring executed by the first processor device or the first storage device.

4. The management server according to claim 3,

wherein the first storage portion is a logical unit (LU), and the one of the candidate storage portion(s) is another LU.

5. The management server according to claim 4,

wherein the one of the candidate storage portion(s) is accessed by another processor device among the processor devices.

6. A replica configuration method for a management server coupled to processor devices and storage devices, comprising the steps of:

storing storage device information relating to the storage devices;

storing mapping information between application programs executed by the processor devices and portions of storage implemented in the storage devices being utilized by the application programs;

receiving a command specifying a first application program executed by a first processor device, from the application programs and the processor devices;

specifying a first storage portion in a first storage devices from the storage devices, based on the mapping information;

specifying a candidate storage portion(s) which is capable to store replica of data in the first storage portion in a candidate storage device(s) from the storage devices, based on the storage device information; and

displaying information about the candidate storage portion(s) and the candidate storage device(s),

wherein the candidate storage portion(s) and the candidate storage device(s) are filtered by policies.

7. The replica configuration method according to claim 6, further comprising:

displaying a visual topology of the first processor device, the first storage device and the candidate storage device(s).

8. The replica configuration method according to claim 6, further comprising:

selecting one of the candidate storage portion(s) for storing the replica of data in the first storage portion by a remote mirroring executed by the first processor device or the first storage device.

9. The replica configuration method according to claim 8,

wherein the first storage portion is a logical unit (LU), and the one of the candidate storage portion(s) is another LU.

10. The replica configuration method according to claim 9,

wherein the one of the candidate storage portion(s) is accessed by another processor device among the processor devices.

11. A system comprising:

a management server;

storage devices implementing portions of storage; and

a processor device executing application programs using the portions of storage,

wherein the management server stores storage device information relating to the storage devices, and stores mapping information between the application programs and the portions of storage,

wherein the management server executes to;

(A) receive a command specifying a first application program from the application programs;

(B) specify a first storage portion in a first storage devices from the storage devices, based on the mapping information;

(C) specify a candidate storage portion(s) which is capable to store replica of data in the first storage portion in a candidate storage device(s) from the storage devices, based on the storage device information; and

(D) display information about the candidate storage portion(s) and the candidate storage device(s),

wherein the candidate storage portion(s) and the candidate storage device(s) are filtered by policies.

12. The system according to claim 11,

wherein the management server displays a visual topology of the first processor device, the first storage device and the candidate storage device(s).

13. The system according to claim 11,

wherein the management server selects one of the candidate storage portion(s), and

wherein the one of the candidate storage portion(s) stores the replica of data in the first storage portion by a remote mirroring executed by the first processor device or the first storage device.

14. The system according to claim 13,

wherein the first storage portion is a logical unit (LU), and the one of the candidate storage portion(s) is another LU.

15. The system according to claim 14,

wherein the one of the candidate storage portion(s) is accessed by another processor device.

16. A non-transitory computer readable medium with an executable program stored thereon, wherein the executable program causes a management server coupled to processor devices and storage devices to perform a method, the method comprising the steps of:

storing storage device information relating to the storage devices;

storing mapping information between application programs executed by the processor devices and portions of storage implemented in the storage devices being utilized by the application programs;

receiving a command specifying a first application program executed by a first processor device, from the application programs and the processor devices;

specifying a first storage portion in a first storage devices from the storage devices, based on the mapping information;

specifying a candidate storage portion(s) which is capable to store a replica of data in the first storage portion in a candidate storage device(s) from the storage devices, based on the storage device information; and

displaying information about the candidate storage portion(s) and the candidate storage device(s),

wherein the candidate storage portion(s) and the candidate storage device(s) are filtered by policies.

17. The non-transitory computer readable medium according to claim 16, further comprising:

displaying a visual topology of the first processor device, the first storage device and the candidate storage device(s).

18. The non-transitory computer readable medium according to claim 16, further comprising:

selecting one of the candidate storage portion(s) for storing the replica of data in the first storage portion by a remote mirroring executed by the first processor device or the first storage device.

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

wherein the first storage portion is a logical unit (LU), and the one of the candidate storage portion(s) is another LU.

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

wherein the one of the candidate storage portion(s) is accessed by another processor device among the processor devices.