Electronic system with storage drive life estimation mechanism and method of operation thereof

• US 9,361,222 B2
• Filed: 07/17/2014
• Issued: 06/07/2016
• Est. Priority Date: 08/07/2013
• Status: Active Grant

• Current Assignee: SanDisk Technologies LLC (Western Digital Corporation)
• Original Assignee: Smart Storage Systems Incorporated (Western Digital Corporation)
• Inventors: Fitzpatrick, James, Dancho, Mark, Higgins, James M., Kresse, James M.
• Primary Examiner(s): Rutz, Jared
• Assistant Examiner(s): Ahmed, Hamdy S
• Application Number:
  US14/334,324
• Publication Number:
  US 20150046635A1
• Time in Patent Office: 691 Days
• Field of Search: 711/103
• US Class Current: 1/1
• CPC Class Codes: G06F 11/008 Reliability or availability analysis
• CPC Class Codes: G06F 12/0246 in block erasable memory, e.g. flash memory
• CPC Class Codes: G06F 2212/7211 Wear leveling

Abstract

Systems, methods and/or devices are used to enable storage drive life estimation. In one aspect, the method includes (1) determining two or more age criteria of a storage drive, and (2) determining a drive age of the storage drive in accordance with the two or more age criteria of the storage drive.

Claims

1. A method of operation of an electronic system comprising:

determining two or more age criteria of a storage drive;

determining a drive age of the storage drive in accordance with the two or more age criteria of the storage drive by;

determining a first scaled age criterion by multiplying a first configurable factor by a first age criterion of the two or more age criteria;

determining a first drive age indicator by multiplying the drive age by a first maximum age criterion for the storage drive, wherein the first maximum age criterion is a maximum value of the first age criterion; and

in accordance with a determination that the first scaled age criterion is greater than or equal to the first drive age indicator, incrementing the drive age; and

after determining the drive age and in accordance with a determination that the incremented drive age is greater than or equal to the first maximum drive age criterion associated with the first age criterion, generating a notification that the drive age of the storage drive has reached the first maximum drive age criterion or a notification of imminent failure of the storage drive.

2. The method of claim 1, wherein the two or more age criteria include a retry rate.

3. The method of claim 1, wherein the two or more age criteria are scaled by respective configurable factors to adjust relative importance of each respective age criterion of the storage drive.

4. The method of claim 1, further comprising:

in accordance with a determination that the first scaled age criterion is not greater than or equal to the first drive age indicator, performing one or more operations including;

determining a second scaled age criterion by multiplying a second configurable factor by a second age criterion of the two or more age criteria;

determining a second drive age indicator by multiplying the drive age by a second maximum age criterion for the storage drive, wherein the second maximum age criterion is a maximum value of the second age criterion;

and

in accordance with a determination that the second scaled age criterion is greater than or equal to the second drive age indicator, incrementing the drive age.

5. The method of claim 1, wherein the drive age is monotonically non-decreasing.

6. The method of claim 1, wherein the two or more age criteria include a defect rate.

7. The method of claim 1, wherein the storage drive comprises one or more flash memory devices.

8. An electronic system comprising:

one or more processors; and

memory storing one or more programs to be executed by the one or more processors, the one or more programs comprising instructions for;

determining two or more age criteria of a storage drive;

determining a drive age of the storage drive in accordance with the two or more age criteria of the storage drive by;

determining a first scaled age criterion by multiplying a first configurable factor by a first age criterion of the two or more age criteria;

determining a first drive age indicator by multiplying the drive age by a first maximum age criterion for the storage drive, wherein the first maximum age criterion is a maximum value of the first age criterion; and

in accordance with a determination that the first scaled age criterion is greater than or equal to the first drive age indicator, incrementing the drive age; and

after determining the drive age and in accordance with a determination that the incremented drive age is greater than or equal to the first maximum drive age criterion associated with the first age criterion, generating a notification that the drive age of the storage drive has reached the first maximum drive age criterion or a notification of imminent failure of the storage drive.

9. The electronic system of claim 8, wherein the two or more age criteria include a retry rate.

10. The electronic system of claim 8, wherein the two or more age criteria are scaled by respective configurable factors to adjust relative importance of each respective age criterion of the storage drive.

11. The electronic system of claim 8, wherein the one or more programs further comprise instructions for:

in accordance with a determination that the first scaled age criterion is not greater than or equal to the first drive age indicator, performing one or more operations including;

determining a second scaled age criterion by multiplying a second configurable factor by a second age criterion of the two or more age criteria;

determining a second drive age indicator by multiplying the drive age by a second maximum age criterion for the storage drive, wherein the second maximum age criterion is a maximum value of the second age criterion;

and

in accordance with a determination that the second scaled age criterion is greater than or equal to the second drive age indicator, incrementing the drive age.

12. The electronic system of claim 8, wherein the drive age is monotonically non-decreasing.

13. The electronic system of claim 8, wherein the two or more age criteria include a defect rate.

14. The electronic system of claim 8, wherein the storage drive comprises one or more flash memory devices.

15. A non-transitory computer readable storage medium, storing one or more programs configured for execution by one or more processors of an electronic system, the one or more programs including instructions for:

determining two or more age criteria of a storage drive;

determining a drive age of the storage drive in accordance with the two or more age criteria of the storage drive by;

determining a first scaled age criterion by multiplying a first configurable factor by a first age criterion of the two or more age criteria;

determining a first drive age indicator by multiplying the drive age by a first maximum age criterion for the storage drive, wherein the first maximum age criterion is a maximum value of the first age criterion; and

in accordance with a determination that the first scaled age criterion is greater than or equal to the first drive age indicator, incrementing the drive age; and

after determining the drive age and in accordance with a determination that the incremented drive age is greater than or equal to the first maximum drive age criterion associated with the first age criterion, generating a notification that the drive age of the storage drive has reached the first maximum drive age criterion or a notification of imminent failure of the storage drive.

16. The non-transitory computer readable storage medium of claim 15, wherein the two or more age criteria include a retry rate.

17. The non-transitory computer readable storage medium of claim 15, wherein the two or more age criteria are scaled by respective configurable factors to adjust relative importance of each respective age criterion of the storage drive.

18. The non-transitory computer readable storage medium of claim 15, wherein the one or more programs further comprise instructions for:

in accordance with a determination that the first scaled age criterion is not greater than or equal to the first drive age indicator, performing one or more operations including;

determining a second scaled age criterion by multiplying a second configurable factor by a second age criterion of the two or more age criteria;

determining a second drive age indicator by multiplying the drive age by a second maximum age criterion for the storage drive, wherein the second maximum age criterion is a maximum value of the second age criterion;

and

in accordance with a determination that the second scaled age criterion is greater than or equal to the second drive age indicator, incrementing the drive age.

19. The non-transitory computer readable storage medium of claim 15, wherein the drive age is monotonically non-decreasing.

20. The non-transitory computer readable storage medium of claim 15, wherein the two or more age criteria include a defect rate.