Apparatus, system, and method for facilitating storage management

• US 20060080319A1
• Filed: 10/12/2004
• Published: 04/13/2006
• Est. Priority Date: 10/12/2004
• Status: Abandoned Application

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Ranganathan, Kesavaprasath, Hickman, John Edward, Van Gundy, Steven Richard, Schmidt, Michael Anthony
• Application Number:
  US10/963,086
• Publication Number:
  US 20060080319A1
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: G06F 11/2023 Failover techniques
• CPC Class Codes: G06F 11/2069 Management of state, configuration or failover
• CPC Class Codes: H04L 67/1001 for accessing one among a plurality of replicated servers
• CPC Class Codes: H04L 67/1029 using data related to the state of servers by a load balancer
• CPC Class Codes: H04L 67/1031 Controlling of the operation of servers by a load balancer, e.g. adding or removing servers that serve requests
• CPC Class Codes: H04L 67/1034 Reaction to server failures by a load balancer
• CPC Class Codes: H04L 67/104 Peer-to-peer [P2P] networks
• CPC Class Codes: H04L 67/1059 Inter-group management mechanisms, e.g. splitting, merging or interconnection of groups
• CPC Class Codes: H04L 67/1093 Some peer nodes performing special functions
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Abstract

An apparatus, system, and method are provided for facilitating storage management through organization of storage resources. The present invention includes a configuration module that configures a first logical entity and a second logical entity to interact with each other in a peer-to-peer domain such that each logical entity mirrors operations of, and is in direct communication with, the other logical entity. An information module exposes local resources of the first logical entity and local resources of the second logical entity to a management node such that the local resources are available as target resources of a management command from the management node. An address module selectively addresses a management command from the management node towards a local resource of the first logical entity and/or a local resource of the second logical entity as determined by the type of management command.

Claims

1. An apparatus to facilitate storage management, the apparatus comprising:

a configuration module that configures a first logical entity and a second logical entity to interact with each other in a peer-to-peer domain such that each logical entity mirrors operations of, and is in direct communication with, the other logical entity;

an information module configured to expose local resources of the first logical entity and local resources of the second logical entity to a management node such that the local resources of the first logical entity and the second logical entity are available as target resources of a management command from the management node; and

an address module configured to selectively address a management command from the management node towards a local resource of the first logical entity and a local resource of the second logical entity.

2. The apparatus of claim 1, wherein the configuration module is designed to configure the management node to interact with the first logical entity and the second logical entity in a management relationship that defines a management domain.

3. The apparatus of claim 2, wherein the management domain comprises the management node and at least one logical entity, the at least one logical entity configured to be managed and monitored by the management node and incapable of managing or monitoring the management node.

4. The apparatus of claim 2, wherein the management domain comprises three or more logical entities in a peer-to-peer domain with each other, the local resources of each logical entity exposed to the management node for use as target resources of a management command from the management node.

5. The apparatus of claim 2, wherein the management domain comprises a first set of logical entities in a peer-to-peer domain with each other and a second set of logical entities in a peer-to-peer domain with each other, the local resources of each logical entity exposed to the management node for use as target resources of a management command, the logical entities of the one set unable to communicate with logical entities of the other set.

6. The apparatus of claim 5, wherein the address module is further configured to target a management command directly to the first set.

7. The apparatus of claim 5, wherein the address module is further configured to target a management command directly to the first set and the second set.

8. The apparatus of claim 1, wherein the management domain further comprises a second management node configured to interact with the management node in a management peer-to-peer domain that allows either management node to monitor and take over management operations in response to a failure of one of the management nodes.

9. The apparatus of claim 1, wherein the peer-to-peer domain comprises at least two logical nodes configured with substantially equal rights to monitor and manage each other.

10. The apparatus of claim 1, wherein the first logical entity and second logical entity of the peer-to-peer domain are configured to take over operations of the other logical entity in response to failure of one of the logical entities, log a set of changes since the failed logical entity went offline, and restore the set of changes in response to the failed logical entity coming online.

11. The apparatus of claim 1, wherein the information module is further configured to broadcast the local resources of the first logical entity and local resources of the second logical entity to the management node.

12. The apparatus of claim 1, wherein the information module is further configured to register the local resources of the first logical entity and local resources of the second logical entity in a central repository accessible to the management node.

13. The apparatus of claim 1, further comprising a synchronization module configured to synchronize resource definitions representative of the local resources of the first logical entity and the second logical entity in response to modifications made to the local resources by the first logical entity or the second logical entity.

14. The apparatus of claim 1, wherein the management node sends management commands over a communications channel separate from one or more Input/Output (I/O) channels used by the first logical entity and second logical entity.

15. The apparatus of claim 1, wherein the first logical entity and second logical entity comprise Logical Partitions (LPARS) of a common hardware platform, the LPARS configured such that each LPAR executes on a separate Central Electronics Complex (CEC) of the common hardware platform.

16. The apparatus of claim 1, wherein the first logical entity and second logical entity define an independently manageable Storage Facility Image (SFI) and wherein the address module is further configured to send the management command to a plurality of SFIs within a management domain.

17. An apparatus to facilitate storage management, the apparatus comprising:

a configuration module that configures a first Logical Partition (LPAR) and a second LPAR to interact with each other in a peer-to-peer domain such that each LPAR mirrors operations of, and is in direct communication with, the other LPAR;

an information module configured to expose local resource definitions of the first LPAR and local resource definitions of the second LPAR to a management node such that the local resources of the first LPAR and the second LPAR are available as target resources of a management command from the management node; and

an address module configured to selectively address a management command from the management node towards a local resource of the first LPAR and a local resource of the second LPAR.

18. The apparatus of claim 17, wherein the first LPAR and second LPAR define an independently manageable Storage Facility Image (SFI) and wherein the address module is further configured to send the management command to a plurality of SFIs within a management domain.

19. The apparatus of claim 17, wherein the information module is further configured to register the local resources of the first LPAR and local resources of the second LPAR in a central repository accessible to the management node.

20. The apparatus of claim 17, further comprising a synchronization module configured to synchronize resource definitions representative of the local resources of the first LPAR and the second LPAR in response to modifications made to the local resources by the first LPAR or the second LPAR.

21. A system to facilitate storage management, the system comprising:

a first Central Electronics Complex (CEC) operatively coupled to a hardware platform, the first CEC comprising a plurality of symmetric multiprocessors organized into a first processor complex, a plurality of electronic memory devices, a plurality of direct access storage devices, a plurality of network Input/Output (I/O) interface devices, and a plurality of management interface devices, each of the devices of the CEC electronically coupled for exchange of data and control information;

a second CEC operatively coupled to the hardware platform, the second CEC comprising a plurality of symmetric multiprocessors organized into a second processor complex, a plurality of electronic memory devices, a plurality of direct access storage devices, a plurality of network Input/Output (I/O) interface devices, and a plurality of management interface devices, each of the devices of the CEC electronically coupled for exchange of data and control information;

at least one Storage Facility Image (SFI) comprising a first Logical Partition (LPAR) defined to operate using computing resources of the first CEC and a second LPAR defined to operate using computing resources of the second CEC, the first LPAR and second LPAR dedicated to storage and retrieval of data;

at least one Storage Application Image (SAI) comprising a third Logical Partition (LPAR) defined to operate using computing resources of the first CEC and a fourth LPAR defined to operate using computing resources of the second CEC, the third LPAR and fourth LPAR dedicated to data storage applications;

a configuration module that configures the first LPAR and the second LPAR to interact with each other in a peer-to-peer domain such that each LPAR mirrors operations of, and is in direct communication with, the other LPAR and further configure the third LPAR and the fourth LPAR to interact with each other in a peer-to-peer domain such that each LPAR mirrors operations of, and is in direct communication with, the other LPAR;

an information module configured to expose local resource definitions of the at least one SFI and the at least one SAI to a management node such that the local resources of the at least one SFI and the at least one SAI are available as target resources of a management command from the management node; and

an address module configured to selectively address a management command from the management node towards a local resource of the at least one SFI and the at least one SAI.

22. The system of claim 21, further comprising a synchronization module configured to synchronize resource definitions representative of the local resources of the at least one SFI and the at least one SAI in response to modifications made to the local resources of either LPAR of the at least one SFI or the at least one SAI.

23. The system of claim 21, wherein the information module is further configured to broadcast the local resources of the at least one SFI and local resources of the at least one SAI to the management node.

24. The system of claim 21, wherein the information module is further configured to register the local resources of the at least one SFI and local resources of the at least one SAI in a central repository accessible to the management node.

25. A signal bearing medium tangibly embodying a program of machine-readable instructions executable by a digital processing apparatus to perform operations to facilitate storage management, the operations comprising:

an operation to configure a first logical entity and a second logical entity to interact with each other in a peer-to-peer domain such that each logical entity mirrors operations of, and is in direct communication with, the other logical entity;

an operation to expose local resources of the first logical entity and local resources of the second logical entity to a management node such that the local resources of the first logical entity and the second logical entity are available as target resources of a management command from the management node; and

an operation to selectively address a management command from the management node towards a local resource of the first logical entity and a local resource of the second logical entity.

26. The signal bearing medium of claim 25, further comprising configuring the management node to interact with the first logical entity and the second logical entity in a management relationship that defines a management domain.

27. The signal bearing medium of claim 26, wherein the management domain comprises the management node and at least one logical entity, the at least one logical entity configured to be managed and monitored by the management node and incapable of managing or monitoring the management node.

28. The signal bearing medium of claim 26, wherein the management domain comprises three or more logical entities in a peer-to-peer domain with each other, the local resources of each logical entity exposed to the management node for use as target resources of a management command from the management node.

29. The signal bearing medium of claim 26, wherein the management domain comprises a first set of logical entities in a peer-to-peer domain with each other and a second set of logical entities in a peer-to-peer domain with each other, the local resources of each logical entity exposed to the management node for use as target resources of a management command, the logical entities of the one set unable to communicate with logical entities of the other set.

30. The signal bearing medium of claim 29, wherein the operations further comprise an operation to target a management command directly to the first set.

31. The signal bearing medium of claim 29, wherein the operations further comprise an operation to target a management command directly to the first set and the second set.

32. The signal bearing medium of claim 26, wherein the management domain further comprises a second management node configured to interact with the management node in a management peer-to-peer domain that allows either management node to monitor and take over management operations in response to a failure of one of the management nodes.

33. The signal bearing medium of claim 25, wherein the peer-to-peer domain comprises at least two logical nodes configured with substantially equal rights to monitor and manage each other.

34. The signal bearing medium of claim 25, wherein the first logical entity and second logical entity of the peer-to-peer domain are configured to take over operations in response to failure of the other logical entity, log a set of changes since the failed logical entity went offline, and restore the set of changes in response to the failed logical entity coming online.

35. The signal bearing medium of claim 25, wherein exposing further comprises broadcasting the local resources of the first logical entity and local resources of the second logical entity to the management node.

36. The signal bearing medium of claim 25, wherein exposing further comprises registering the local resources of the first logical entity and local resources of the second logical entity in a central repository accessible to the management node.

37. The signal bearing medium of claim 25, further comprising synchronizing resource definitions representative of the local resources of the first logical entity and the second logical entity in response to modifications made to the local resources by the first logical entity or the second logical entity.

38. The signal bearing medium of claim 25, wherein the first logical entity and second logical entity comprise Logical Partitions (LPARS) of a common hardware platform, the LPARS configured such that each LPAR executes on a separate Central Electronics Complex (CEC) of the common hardware platform.

39. A method for facilitating storage management, the method comprising:

configuring a first logical entity and a second logical entity to interact with each other in a peer-to-peer domain such that each logical entity mirrors operations of, and is in direct communication with, the other logical entity;

exposing local resources of the first logical entity and local resources of the second logical entity to a management node such that the local resources of the first logical entity and the second logical entity are available as target resources of a management command from the management node; and

selectively addressing a management command from the management node towards a local resource of the first logical entity and a local resource of the second logical entity.

40. An apparatus for facilitating storage management, the apparatus comprising:

means for configuring a first logical entity and a second logical entity to interact with each other in a peer-to-peer domain such that each logical entity mirrors operations of, and is in direct communication with, the other logical entity;

means for exposing local resources of the first logical entity and local resources of the second logical entity to a management node such that the local resources of the first logical entity and the second logical entity are available as target resources of a management command from the management node; and

means for selectively addressing a management command from the management node towards a local resource of the first logical entity and a local resource of the second logical entity.