ADAPTIVE VIBRATION MITIGATION

• US 20140259023A1
• Filed: 03/07/2013
• Published: 09/11/2014
• Est. Priority Date: 03/07/2013
• Status: Abandoned Application

• Current Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Original Assignee: Seagate Technology LLC (Seagate Technology Holdings Plc)
• Inventors: MILLER, Michael Howard, BOHN, Richard Esten
• Application Number:
  US13/788,425
• Publication Number:
  US 20140259023A1
• Time in Patent Office: Days
• US Class Current: 718/105
• CPC Class Codes: G06F 3/061 Improving I/O performance
• CPC Class Codes: G06F 3/0619 in relation to data integrity, e.g. data losses, bit errors
• CPC Class Codes: G06F 3/0631 by allocating resources to storage systems
• CPC Class Codes: G06F 3/0653 Monitoring storage devices or systems
• CPC Class Codes: G06F 3/0689 Disk arrays, e.g. RAID, JBOD
• CPC Class Codes: G06F 9/5083 Techniques for rebalancing the load in a distributed system

Abstract

In accordance with one implementation, a system for adaptive vibration mitigation includes a distributed workload scheduler configured to allocate individual workloads between a plurality of storage nodes in a distributed computing and storage environment. The distributed workload scheduler synthesizes and analyzes feedback data from the storage nodes in order to modify workload scheduling policies and/or the behavior of other system components in a way that mitigates the impact of vibrations on the system.

Claims

1. A method comprising:

allocating a workload among a plurality of storage nodes based on a vibrational susceptibility determined for at least one of the plurality of storage nodes.

2. The method of claim 1, wherein allocating the workload among the plurality of storage nodes is based on a relativity of vibrational susceptibilities of at least two of the plurality of storage nodes.

3. The method of claim 1, wherein allocating the individual workload further comprises:

detecting a first performance degradation experienced at a first storage node performing a workload task;

detecting a second performance degradation experienced at a second storage node performing the workload task;

allocating a subsequent instance of the workload task to a third storage node based on the performance degradation detected at the first and second storage nodes.

4. The method of claim 1, wherein the vibrational susceptibility is determined based on an identification of at least one physically degraded component.

5. The method of claim 1, wherein the vibrational susceptibility is determined based on a type of subtask being performed on one or more adjacent storage nodes.

6. The method of claim 1, wherein the vibrational susceptibility is determined based on a performance requirement of a subtask allocated to the at least one of the plurality of storage nodes.

7. The method of claim 1, further comprising:

affecting a power state of a system component in order to reduce vibrational susceptibility of at least one of the plurality of storage nodes.

8. The method of claim 1, further comprising:

notifying a system administrator of a persistent problem in one of the storage nodes.

9. The method of claim 1, further comprising:

limiting when background activities may be performed on other storage nodes in the system based on the vibrational susceptibility determined for the at least one of the plurality of storage nodes.

10. The method of claim 1, wherein the vibrational susceptibility determined for the at least one of the plurality of storage nodes varies with time.

11. The method of claim 1, wherein allocating the workload among the plurality of storage nodes further comprises:

allocating the workload among the plurality of storage nodes based on a vibrational susceptibility determined for the at least one of the plurality of storage nodes at two or more different times.

12. The method of claim 1, wherein the vibrational susceptibility is determined based on a temperature communicated to the workload scheduler.

13. A system comprising:

a plurality of storage nodes;

a workload scheduler communicatively coupled to the plurality of storage nodes and configured to allocate workloads among the plurality of storage nodes based on a vibrational susceptibility determined for at least one of the plurality of storage nodes.

14. The system of claim 13, wherein the workload scheduler is configured to allocate workloads among the plurality of storage nodes based on a relativity of vibrational susceptibilities of at least two of the plurality of storage nodes.

15. The system of claim 13, wherein the vibrational susceptibility is determined based on a relative location of the at least two of the plurality of storage nodes within the system.

16. The system of claim 13, wherein the vibrational susceptibility is determined based on a type of subtask being performed on one or more adjacent storage nodes.

17. The system of claim 13, wherein the vibrational susceptibility is determined based on a performance requirement of a subtask allocated to the at least one of the plurality of storage nodes.

18. The system of claim 13, wherein the vibrational susceptibility is determined based on a temperature communicated to the workload scheduler.

19. The system of claim 13, wherein the vibrational susceptibility is determined based on an identification of at least one physically degraded system component.

20. The system of claim 13, wherein the workload scheduler is further configured to limit when background activities are performed based on the vibrational susceptibility determined for the at least one of the plurality of storage nodes.

21. The system of claim 13, wherein the workload scheduler is configured to allocate the workload among the plurality of storage nodes based on a vibrational susceptibility determined for the at least one of the plurality of storage nodes at two or more different times.

22. One or more computer-readable storage media encoding computer-executable instructions for executing on a computer system a computer process, the computer process comprising:

allocating a workload among a plurality of storage nodes based on a vibrational susceptibility determined for at least one of the plurality of storage nodes.

23. The one or more computer-readable storage media of claim 22, wherein allocating the workload among the plurality of storage nodes is based on a relativity of vibrational susceptibilities of at least two of the plurality of storage nodes.

24. The one or more computer-readable storage medium of claim 23, wherein the vibrational susceptibility is determined based on a relative location of the at least two of the plurality of storage nodes within the system.

25. The one or more computer-readable storage media of claim 22, wherein allocating the individual workload further comprises:

detecting a first performance degradation experienced at a first storage node performing a workload task;

detecting a second performance degradation experienced at a second storage node performing the workload task;

allocating a subsequent instance of the workload task to a third storage node based on the performance degradation detected at the first and second storage nodes.

26. The one or more computer-readable storage medium of claim 22, wherein the vibrational susceptibility is determined based on an identification of at least one physically degraded component.

27. The one or more computer-readable storage medium of claim 22, wherein the vibrational susceptibility is determined based on a type of subtask being performed on one or more adjacent storage nodes.

28. The one or more computer-readable storage medium of claim 22, wherein the vibrational susceptibility is determined based on a performance requirement of a subtask allocated to the at least one of the plurality of storage nodes.

29. The one or more computer-readable storage medium of claim 22, wherein the computer-readable storage medium is configured to limit when background activities are performed on storage nodes in the system based on the vibrational susceptibility determined for the at least one of the plurality of storage nodes.

30. The one or more computer-readable storage medium of claim 22, wherein allocating the workload among the plurality of storage nodes further comprises:

allocating the workload among the plurality of storage nodes based on a vibrational susceptibility determined for the at least one of the plurality of storage nodes at two or more different times.