Electronic system with data management mechanism and method of operation thereof

• US 9,075,714 B1
• Filed: 06/17/2014
• Issued: 07/07/2015
• Est. Priority Date: 05/13/2014
• Status: Active Grant

• Current Assignee: JP Morgan Chase Bank, N.A. (JP Morgan Chase & Co)
• Original Assignee: Western Digital Technologies Incorporated (Western Digital Corporation)
• Inventors: Tsai, Chun Sei, Barlow, Carl E., Banh, Thao Hieu
• Primary Examiner(s): HINDI, NABIL Z
• Application Number:
  US14/307,345
• Time in Patent Office: 385 Days
• Field of Search: 360/75, 360/31, 360/46, 369/53.13, 369/53.14, 369/53.17, 369/53.15, 369/53.35, 369/47.53
• US Class Current: 1/1
• CPC Class Codes: G11B 20/1889 with discs

Abstract

An apparatus includes: a media; a head over the media; a read channel, coupled to the head, configured to extract data from the media; control circuitry, coupled to the read channel, configured to execute a read command; and wherein the read channel is further configured to: generate, based on extracting the data from the media, a data condition indicator, and provide, for use by the control circuitry, the data and the data condition indicator.

Claims

1. An apparatus comprising:

a media;

a head over the media;

a read channel, coupled to the head, configured to extract data from the media;

control circuitry, coupled to the read channel, configured to execute a read command; and

wherein the read channel is further configured to;

generate, based on extracting the data from the media, a data condition indicator including a locality error indicator, and

provide, for use by the control circuitry, the data and the data condition indicator.

2. The apparatus as claimed in claim 1 wherein the control circuitry further configured to:

detect, based on the data condition indicator, a suspect location on the media when the read command is executed; and

perform a data maintenance operation.

3. The apparatus as claimed in claim 1 wherein the control circuitry further configured to:

detect, based on the data condition indicator, a suspect location on the media when the read command is executed; and

relocate the data of the suspect location.

4. The apparatus as claimed in claim 1 wherein the control circuitry further configured to:

detect, based on the data condition indicator, a suspect location on the media when the read command is executed; and

re-read the data to confirm data integrity.

5. The apparatus as claimed in claim 1 wherein the control circuitry is further configured to determine a drive health indicator from the data condition indicator.

6. The apparatus as claimed in claim 1 wherein the control circuitry is further configured to compare the data condition indicator to a threshold.

7. The apparatus as claimed in claim 1 wherein the control circuitry is further configured to store an address when a suspect address flag is set by the data condition indicator exceeding a threshold.

8. The apparatus as claimed in claim 1 wherein the control circuitry is further configured to update a threshold for the data condition indicator.

9. The apparatus as claimed in claim 1 wherein the data condition indicator includes a number of bits corrected count and an iteration count.

10. The apparatus as claimed in claim 1 wherein the control circuitry is further configured to characterize a failure mode of an address location based on the data indicator.

11. The apparatus as claimed in claim 1 wherein the control circuitry is further configured to monitor a logical block address (LBA) usage status of a sector group on the media when the read command is executed.

12. The apparatus as claimed in claim 1 wherein the control circuitry is configured to execute the read command, includes a host initiated read command, a pre-read command, post-read command, or combination thereof executed.

13. A method of operating an apparatus, the method comprising:

flying a head over a media;

executing a read command for reading data by the head over the media;

monitoring a data condition indicator, of the data from the media, including a locality error indicator; and

providing the data and the data condition indicator for use by control circuitry of the apparatus.

14. The method as claimed in claim 13 further comprising:

detecting a suspect location on the media based on the data condition indicator; and

performing a data maintenance operation.

15. The method as claimed in claim 13 further comprising:

detecting a suspect location on the media based on the data condition indicator; and

relocating the data of the suspect location.

16. The method as claimed in claim 13 further comprising:

detecting a suspect location on the media based on the data condition indicator; and

re-reading the data for confirming a data integrity of the data.

17. The method as claimed in claim 13 wherein monitoring the data condition indicator includes determining a drive health indicator.

18. The method as claimed in claim 13 further comprising comparing the data condition indicator to a threshold.

19. The method as claimed in claim 13 further comprising setting a suspect address flag including storing an address when the data condition indicator exceeds a threshold.

20. The method as claimed in claim 13 further comprising updating a threshold for comparing the data condition indicator.

21. The method as claimed in claim 18 wherein comparing the data condition indicator includes comparing a number of bits corrected count and an iteration count to the threshold.

22. The method as claimed in claim 13 further comprising characterizing a failure mode of an address location based on the data indicator.

23. The method as claimed in claim 13 further comprising monitoring a logical block address (LBA) utilization of a sector group on the media when executing the read command.

24. The method as claimed in claim 13 wherein executing the read command includes executing a host initiated read command, a pre-read command, post-read command, or combination thereof.

25. An apparatus comprising:

media for storing data;

a read channel configured to extract data from the media;

control circuitry, coupled to the read channel, configured to execute a read command; and

wherein the read channel is further configured to;

generate, based on extracting the data from the media, a data condition indicator including a locality error indicator, and

provide, for use by the control circuitry, the data and the data condition indicator.

26. The apparatus as claimed in claim 25 wherein the media comprises solid-state memory.

27. A method of operating an apparatus, the method comprising:

executing a read command for reading from media;

monitoring a data condition indicator, of the data from the media, including a locality error indicator; and

providing the data and the data condition indicator for use by control circuitry of the apparatus.

28. The method as claimed in claim 27 wherein the media comprises solid-state memory.

29. An apparatus comprising:

a media;

a head over the media;

a read channel, coupled to the head, configured to extract data from the media;

control circuitry, coupled to the read channel, configured to execute a read command; and

wherein the read channel is further configured to;

generate, based on extracting the data from the media, a data condition indicator, and

provide, for use by the control circuitry, the data and the data condition indicator wherein the data condition indicator includes a number of bits corrected count and an iteration count.