STORAGE SYSTEM DEDUPLICATION WITH SERVICE LEVEL AGREEMENTS

• US 20140258244A1
• Filed: 03/06/2013
• Published: 09/11/2014
• Est. Priority Date: 03/06/2013
• Status: Active Grant

• Current Assignee: Quest Software, Inc.
• Original Assignee: Dell Products LP (Dell Technologies Inc.)
• Inventors: Rao, Goutham, Bolla, Ratna Manoj, Jayaraman, Vinod
• Granted Patent: US 10,127,235 B2
• Time in Patent Office: Days
• US Class Current: 707/692
• CPC Class Codes: G06F 16/122 using management policies backup systems G06F11/1446; file migration policies for HSM systems G06F16/185
• CPC Class Codes: G06F 16/1724 Details of de-fragmentation performed by the file system saving storage space on storage systems G06F3/0608; management of blocks in storage devices G06F3/064
• CPC Class Codes: G06F 16/1752 based on file chunks

Abstract

Mechanisms are provided for adjusting a configuration of data stored in a storage system. According to various embodiments, a storage module may be configured to store a configuration of data. A processor may be configured to identify an estimated performance level for the storage system based on a configuration of data stored on the storage system. The processor may also be configured to transmit an instruction to adjust the configuration of data on the storage system to meet the service level objective when the estimated performance level fails to meet a service level objective for the storage system

Claims

1. A method comprising:

identifying an estimated performance level for a storage system based on a configuration of data stored on the storage system; and

when the estimated performance level fails to meet a service level objective for the storage system, adjusting the configuration of data on the storage system to meet the service level objective.

2. The method recited in claim 1, the method further comprising:

determining whether the estimated performance level meets the service level objective for the storage system.

3. The method recited in claim 1, wherein the estimated performance level corresponds to a data readback throughput level that measures a rate at which the data may be retrieved from the storage system.

4. The method recited in claim 3, wherein the rate is determined by identifying a degree of data contiguity of the data stored on the storage system.

5. The method recited in claim 4, wherein the degree of data contiguity indicates a degree to which a plurality of related data segments are stored in contiguous blocks of memory on the storage system.

6. The method recited in claim 1, the method further comprising:

determining a service characteristic of the storage system by reading or writing test data on the storage system and measuring a performance metric associated with the reading or writing.

7. The method recited in claim 6, wherein the service characteristic comprises a functional relationship between two or more measurable quantities associated with accessing the storage system.

8. The method recited in claim 1, wherein adjusting the configuration of data on the storage system comprises performing one or more data deduplication operations on the data stored on the storage system.

9. The method recited in claim 1, wherein adjusting the configuration of data on the storage system comprises performing one or more data defragmentation operations on the data stored on the storage system.

10. The method recited in claim 1, wherein the storage system comprises one or more magnetic disk drives, each magnetic disk drive including one or more magnetic disks.

11. A system comprising:

a storage module configured to store a configuration of data; and

a processor configured to;

identify an estimated performance level for the storage module based on the configuration of data stored on the storage module, and

when the estimated performance level fails to meet a service level objective for the storage module, transmit an instruction to adjust the configuration of data on the storage module to meet the service level objective.

12. The system recited in claim 11, wherein the processor is further configured to:

determining whether the estimated performance level meets the service level objective for the storage module.

13. The system recited in claim 11, wherein the estimated performance level corresponds to a data readback throughput level that measures a rate at which the data may be retrieved from the storage module.

14. The system recited in claim 13, wherein the rate is determined by identifying a degree of data contiguity of the data stored on the storage module.

15. The system recited in claim 14, wherein the degree of data contiguity indicates a degree to which a plurality of related data segments are stored in contiguous blocks of memory on the storage module.

16. The system recited in claim 11, wherein the processor is further configured to:

determining a service characteristic of the storage module by reading or writing test data on the storage module and measuring a performance metric associated with the reading or writing.

17. The system recited in claim 16, wherein the service characteristic comprises a functional relationship between two or more measurable quantities associated with accessing the storage module.

18. The system recited in claim 11, wherein adjusting the configuration of data on the storage module comprises performing one or more data deduplication or data defragmentation operations on the data stored on the storage module.

19. One or more computer readable media having instructions stored thereon for performing a method, the method comprising:

identifying an estimated performance level for a storage system based on a configuration of data stored on the storage system; and

when the estimated performance level fails to meet a service level objective for the storage system, adjust the configuration of data on the storage system to meet the service level objective.

20. The one or more computer readable media recited in claim 19, the method further comprising:

determining whether the estimated performance level meets the service level objective for the storage system.