Apparatus, system, and method for dynamic adjustment of performance monitoring

• US 7,624,178 B2
• Filed: 02/27/2006
• Issued: 11/24/2009
• Est. Priority Date: 02/27/2006
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Tevis, Gregory John
• Primary Examiner(s): Nguyen; Quang N.
• Assistant Examiner(s): Thieu; Benjamin M
• Application Number:
  US11/363,432
• Publication Number:
  US 20070226631A1
• Time in Patent Office: 1,366 Days
• Field of Search: 709223-224, 709/238, 709220-221, 709/216, 370/412, 370/242, 370/485, 370/244, 700/108, 700/109, 715/736, 715/734
• US Class Current: 709/224
• CPC Class Codes: H04L 43/16 Threshold monitoring

Abstract

An apparatus, system, and method are disclosed for dynamically adjusting performance monitoring of storage area network (“SAN”) components. An initial violation module is included to determine that a threshold violation associated with a SAN component is an initial threshold violation. A violation entry module is included to record a component violation entry in response to the initial threshold violation. An entry adjustment module is included to adjust a component violation entry associated with a SAN component in response to a threshold violation related to the SAN component. An analysis module is included to analyze the component violation entry based on analysis criteria. A suspicion adjustment module is included to adjust a suspicion variable associated with the SAN component in response to results of the analysis of the component violation entry.

Claims

1. A computer program product stored in a computer readable medium having computer usable program code programmed for dynamically adjusting performance monitoring of storage area network (“

SAN”

) components, the operations of the computer program product comprising;

determining that a threshold violation associated with a SAN component is an initial threshold violation;

recording a component violation entry in response to the initial threshold violation;

adjusting a component violation entry associated with a SAN component in response to a threshold violation related to the SAN component;

analyzing the component violation entry based on analysis criteria; and

adjusting a suspicion variable associated with the SAN component in response to results of the analysis of the component violation entry.

2. The computer program product of claim 1, further comprising decreasing the suspicion variable in response to expiration of a time limit associated with the component violation entry.

3. The computer program product of claim 2, further comprising removing the component violation entry in response to the suspicion variable decreasing below a monitoring threshold.

4. The computer program product of claim 1, further comprising responding based on the suspicion variable crossing a suspicion threshold.

5. The computer program product of claim 4, wherein responding based on the suspicion variable crossing a suspicion threshold comprises monitoring SAN components connected to the SAN component responsible for the threshold violation.

6. The computer program product of claim 5, wherein the connection between SAN components and the SAN component responsible for the threshold violation comprises a physical connection.

7. The computer program product of claim 5, wherein the connection between SAN components and the SAN component responsible for the threshold violation comprises a logical connection.

8. The computer program product of claim 4, wherein responding based on the suspicion variable crossing a suspicion threshold comprises adjusting an attribute associated with a SAN component responsible for the threshold violation.

9. The computer program product of claim 4, wherein responding based on the suspicion variable crossing a suspicion threshold comprises adjusting an attribute of a SAN component connected to the SAN component responsible for the threshold violation.

10. The computer program product of claim 4, wherein responding based on the suspicion variable crossing a suspicion threshold comprises rerouting SAN traffic.

11. The computer program product of claim 4, wherein responding based on the suspicion variable crossing a suspicion threshold comprises sending a notification.

12. The computer program product of claim 1, wherein the component violation entry comprises a history of threshold violations.

13. The computer program product of claim 12, further comprising adjusting the history to decrease the number of threshold violations tracked in response to expiration of a time limit associated with the component violation entry.

14. The computer program product of claim 13, further comprising removing a component violation entry in response to the number of threshold violations tracked crossing a minimum threshold violation limit.

15. The computer program product of claim 13, wherein adjusting the history to decrease the number of threshold violations tracked comprises decreasing a threshold violation counter.

16. The computer program product of claim 13, wherein adjusting the history to decrease the number of threshold violations tracked is in response to receiving a threshold expiration signal from the SAN component.

17. The computer program product of claim 1, wherein each suspicion variable corresponds to one SAN component violation entry.

18. An apparatus for dynamically adjusting performance monitoring of storage area network (“

SAN”

) components, the apparatus comprising;

an initial violation module configured to determine that a threshold violation associated with a SAN component is an initial threshold violation;

a violation entry module configured to record a component violation entry in response to the initial threshold violation;

an entry adjustment module configured to adjust a component violation entry associated with a SAN component in response to a threshold violation related to the SAN component;

an analysis module configured to analyze the component violation entry based on analysis criteria; and

a suspicion adjustment module configured to adjust a suspicion variable associated with the SAN component in response to results of the analysis of the component violation entry

wherein each of the initial violation module, violation entry module, entry adjustment module, analysis module, and suspicion adjustment module comprise one or more of hardware and executable code stored on a computer readable medium.

19. The apparatus of claim 18, further comprising a suspicion reduction module configured to decrease the suspicion variable in response to expiration of a time limit associated with the component violation entry.

20. The apparatus of claim 19, wherein the suspicion reduction module further comprises a suspicion entry removal module configured to remove the component violation entry in response to the suspicion variable decreasing below a monitoring threshold.

21. The apparatus of claim 18, further comprising a suspicion response module configured to respond based on the suspicion variable crossing a suspicion threshold.

22. The apparatus of claim 21, wherein the suspicion response module further comprises a related component monitoring module configured to monitor SAN components connected to the SAN component responsible for the threshold violation.

23. The apparatus of claim 21, wherein the suspicion response module further comprises a direct attribute adjustment module configured to adjust an attribute associated with a SAN component responsible for the threshold violation.

24. The apparatus of claim 21, wherein the suspicion response module further comprises an indirect attribute adjustment module configured to adjust an attribute of a SAN component connected to the SAN component responsible for the threshold violation.

25. The apparatus of claim 21, wherein the suspicion response module further comprises a rerouting module configured to reroute SAN traffic.

26. A system for dynamically adjusting performance monitoring of storage area network (“

SAN”

) components, the system comprising;

a storage area network comprising at least one data storage device;

a processor communicating with the storage area network;

a memory communicating with the processor, the memory comprising

an initial violation module configured to determine that a threshold violation associated with a SAN component is an initial threshold violation;

a violation entry module configured to record a component violation entry in response to the initial threshold violation;

an entry adjustment module configured to adjust a component violation entry associated with a SAN component in response to a threshold violation related to the SAN component;

an analysis module configured to analyze the component violation entry based on analysis of the component violation entry;

a suspicion adjustment module configured to adjust a suspicion variable associated with the SAN component in response to results of the analysis criteria; and

a suspicion response module configured to respond based on the suspicion variable crossing a suspicion threshold.

27. The system of claim 26, wherein the component violation entry comprises a history of threshold violations.

28. The system of claim 27, further comprising a history reduction module configured to adjust the history to decrease the number of threshold violations tracked in response to expiration of a time limit associated with the component violation entry.

29. The system of claim 28, wherein the history reduction module further comprises a history entry removal module configured to remove a component violation entry in response to the number of threshold violations tracked crossing a minimum threshold violation limit.

30. A method for dynamically adjusting performance monitoring of storage area network (“

SAN”

) components, the method comprising;

determining that a threshold violation associated with a SAN component is an initial threshold violation;

recording a component violation entry in response to the initial threshold violation;

adjusting a component violation entry associated with a SAN component in response to a threshold violation related to the SAN component;

adjusting a suspicion variable a large amount, the suspicion variable adjusted a large amount being associated with the component violation entry of a SAN component directly related to the SAN component responsible for the threshold violation;

adjusting a suspicion variable a small amount, the suspicion variable adjusted a small amount being associated with the component violation entry of a SAN component indirectly related to the SAN component responsible for the threshold violation;

decreasing a suspicion variable associated with a component violation entry in response to expiration of a time limit associated with the component violation entry; and

removing the component violation entry with the expired time limit in response to the suspicion variable associated with the component violation entry with the expired time limit decreasing below a monitoring threshold.

31. The method of claim 30, further comprising responding based on a suspicion variable crossing a suspicion threshold.

32. A method for dynamically adjusting performance monitoring of storage area network (“

SAN”

) components, the method comprising;

accessing a SAN;

executing a monitoring software utility to monitor SAN components, the monitoring software utility configured to

determine that a threshold violation associated with a SAN component is an initial threshold violation;

record a component violation entry in response to the initial threshold violation;

adjust a component violation entry associated with a SAN component in response to a threshold violation related to the SAN component;

analyze the component violation entry based on analysis criteria; and

adjust a suspicion variable associated with the SAN component in response to results of the analysis of the component violation entry;

analyzing the suspicion variable; and

reporting the suspicion variable.

33. The method of claim 32, further comprising responding to the suspicion variable.

34. The method of claim 33, wherein responding to the suspicion variable comprises monitoring SAN components connected to the SAN component associated with the suspicion variable.

35. The method of claim 33, wherein responding to the suspicion variable comprises rerouting traffic.