Processing data storage commands for enclosure services

• US 9,710,170 B2
• Filed: 03/05/2015
• Issued: 07/18/2017
• Est. Priority Date: 03/05/2015
• Status: Active Grant

• Current Assignee: Sandisk Technologies Incorporated (Western Digital Corporation)
• Original Assignee: Western Digital Technologies Incorporated (Western Digital Corporation)
• Inventors: Webster, Michael W.
• Primary Examiner(s): BATAILLE, PIERRE MICHE
• Application Number:
  US14/639,442
• Publication Number:
  US 20160259567A1
• Time in Patent Office: 866 Days
• Field of Search: 711103, 711202, 711203
• CPC Class Codes: G06F 3/0613 in relation to throughput
• CPC Class Codes: G06F 3/0659 Command handling arrangements, e.g. command buffers, queues, command scheduling
• CPC Class Codes: G06F 3/0665 at area level, e.g. provisioning of virtual or logical volumes
• CPC Class Codes: G06F 3/0688 Non-volatile semiconductor memory arrays
• CPC Class Codes: G06F 3/0689 Disk arrays, e.g. RAID, JBOD
• CPC Class Codes: H04L 67/1097 for distributed storage of data in networks, e.g. transport arrangements for network file system [NFS], storage area networks [SAN] or network attached storage [NAS]

Abstract

Systems and method are disclosed for processing data storage commands for enclosure services. In one embodiment, a data storage device may include a virtual ATA packet interface (VATAPI). The VATAPI may identify itself as a SCSI enclosure services (SES) device. The VATAPI may allow the data storage device to use SES operations/commands to perform operations/commands for enclosure services.

Claims

1. A method comprising:

identifying a virtual ATA packet interface (VATAPI) as a SCSI enclosure services (SES) device to a computing device that is coupled to a data storage device;

receiving one or more data storage commands from a communication interface of the data storage device;

providing the one or more data storage commands to the VATAPI; and

receiving one or more results of the one or more data storage commands from the VATAPI.

2. The method of claim 1, further comprising:

parsing the one or more data storage commands; and

processing the one or more data storage commands.

3. The method of claim 2, wherein parsing the one or more data storage commands comprises:

extracting the one or more data storage commands from one or more frame information structure (FIS) packets.

4. The method of claim 2, wherein processing the one or more data storage commands comprises:

providing the one or more data storage commands to one or more command handlers.

5. The method of claim 1, further comprising:

performing one or more data transfers based on the one or more data storage commands.

6. A data storage device, comprising:

a non-volatile memory; and

a controller coupled to the non-volatile memory, the controller configured to;

identify a virtual ATA packet interface (VATAPI) as a SCSI enclosure services (SES) device to a computing device that is coupled to the data storage device;

receive one or more data storage commands from a communication interface of the data storage device;

provide the one or more data storage commands to the VATAPI; and

receive one or more results of the one or more data storage commands from the VATAPI.

7. The data storage device of claim 6, wherein the VATAPI is not associated with a physical device.

8. The data storage device of claim 6, wherein the one or more data storage commands comprise one or more SES commands.

9. The data storage device of claim 6, wherein the one or more data storage commands comprise one or more redundant array of inexpensive disks (RAID) commands.

10. The data storage device of claim 6, wherein the one or more data storage commands comprise one or more vendor commands.

11. The data storage device of claim 6, wherein the VATAPI comprises a destination for the one or more data storage commands.

12. The data storage device of claim 6, wherein the one or more data storage commands are received from a storage management application on the computing device.

13. The data storage device of claim 12, wherein the controller is further configured to:

provide the one or more results to the storage management application via the communication interface.

14. The data storage device of claim 6, wherein the controller is further configured to:

perform one or more data transfers based on the one or more data storage commands.

15. The data storage device of claim 6, wherein the communication interface comprises a Thunderbolt interface.

16. The data storage device of claim 6, wherein the controller comprises the VATAPI.

17. The data storage device of claim 6, wherein the VATAPI is configured to:

parse the one or more data storage commands; and

process the one or more data storage commands.

18. The data storage device of claim 17, wherein the VATAPI is configured to parse the one or more data storage commands by:

extracting the one or more data storage commands from one or more frame information structure (FIS) packets.

19. The data storage device of claim 17, wherein the VATAPI is configured to process the one or more data storage commands by:

providing the one or more data storage commands to one or more command handlers.

20. A data storage device, comprising:

a means for storing data; and

processing means coupled to the means for storing data, the processing means comprising;

means for identifying a virtual ATA packet interface (VATAPI) as a SCSI enclosure services (SES) device to a computing device that is coupled to the data storage device;

means for receiving one or more data storage commands from a communication interface of the data storage device;

means for providing the one or more data storage commands to the VATAPI; and

means for receiving one or more results of the one or more data storage commands from the VATAPI.