Tape drive error management

• US 7,206,156 B2
• Filed: 07/27/2005
• Issued: 04/17/2007
• Est. Priority Date: 07/27/2005
• Status: Active Grant

• Current Assignee: Hewlett Packard Enterprise Development LP (Hewlett-Packard Enterprise Company)
• Original Assignee: Hewlett-Packard Development Company, L.P. (HP Inc.)
• Inventors: Ballard, Curtis C.
• Primary Examiner(s): WONG, KIN C
• Application Number:
  US11/191,115
• Publication Number:
  US 20070025008A1
• Time in Patent Office: 629 Days
• Field of Search: None
• US Class Current: 360/69
• CPC Class Codes: G06F 11/0727 in a storage system, e.g. in a DASD or network based storage system drivers for digital recording or reproducing units G06F3/06; circuits for error detection or correction within digital recording or reproducing units G11B20/18; 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], H04L67/1097
• CPC Class Codes: G06F 11/0787 Storage of error reports, e.g. persistent data storage, storage using memory protection
• CPC Class Codes: G11B 20/18 Error detection or correction; Testing , e.g. of drop-outs
• CPC Class Codes: G11B 2220/41 Flat as opposed to hierarchical combination, e.g. library of tapes or discs, CD changer, or groups of record carriers that together store one title
• CPC Class Codes: G11B 2220/90 Tape-like record carriers
• CPC Class Codes: G11B 27/002 Programmed access in sequence to a plurality of record carriers or indexed parts, e.g. tracks, thereof, e.g. for editing; transfer of record carriers from magazine G11B15/68, G11B17/10; G11B17/22
• CPC Class Codes: G11B 27/11 by using information not detectable on the record carrier
• CPC Class Codes: G11B 27/36 Monitoring, i.e. supervising the progress of recording or reproducing for digital recording G11B20/00 and s.gr.; for monitoring, testing or measuring of TV recorders of the type covered by H04N5/76 and subgroups, see H04N17/06

Abstract

In one embodiment, a method of recording an error in a tape drive, comprises receiving, in a tape library controller, an internal identifier associated with a tape cartridge; recording, in a memory medium associated with the tape library controller, the internal identifier; associating, in the memory medium, the internal identifier with an external identifier associated with the tape cartridge; and providing information in the memory medium to identify the tape cartridge in a subsequent error analysis routine.

Claims

1. A method of recording an error in a tape drive, comprising:

transferring a tape cartridge to a tape drive having a tape drive controller after reading an external identifier on the tape cartridge with a tape library controller;

reading, with the tape drive controller, an internal identifier of the tape cartridge;

receiving, in the tape library controller, the internal identifier associated with the tape cartridge;

recording, in a memory medium associated with the tape library controller, the internal identifier; and

associating, in the memory medium, the internal identifier with the external identifier associated with the tape cartridge.

2. The method of claim 1, wherein receiving, in the tape library controller, the internal identifier associated with the tape cartridge comprises:

issuing a request for the internal identifier from the tape library controller to the tape drive controller; and

receiving a response to the request.

3. The method of claim 1, wherein recording, in a memory medium associated with the tape drive controller, the internal identifier, comprises recording the internal identifier in non-volatile memory medium.

4. The method of claim 1, wherein associating, in the memory medium, the internal identifier with the external identifier associated with the tape cartridge comprises recording the internal identifier in the memory medium.

5. The method of claim 1, further comprising providing information in the memory medium to identify the tape cartridge in a subsequent error analysis routine by:

receiving, in the tape library controller, a service request from a diagnostic application executing on a host computer; and

transmitting information from the memory medium to the host computer in response to the request.

6. The method of claim 1, further comprising providing information in the memory medium to identify the tape cartridge in a subsequent error analysis routine by:

receiving, in the tape drive controller, a service request from a diagnostic application executing on a host computer; and

transmitting information from an event log maintained by the tape drive controller to the host computer in response to the request.

7. The method of claim 1, wherein:

the external identifier comprises a bar code; and

the tape library controller verifies a format of the bar code.

8. The method of claim 1, further comprising comparing the internal identifier against one or more templates to verify a format of the internal identifier.

9. A tape library, comprising:

a housing for receiving at least one tape cartridge;

a library controller comprising a first processor module and a first memory medium communicatively connected to the first processor module;

a tape drive controller comprising a second processor module and a second memory medium communicatively connected to the second processor module,

wherein the library controller executes logic instructions that cause the first processor module to;

record an external identifier associated with a tape cartridge in the first memory medium;

transfer the tape cartridge to a tape drive so the tape drive controller can read an internal identifier associated with the tape cartridge;

request the internal identifier from the tape drive controller; and

record the internal identifier in association with the external identifier in the first memory medium.

10. The tape library of claim 9, wherein the second processor in the tape drive controller records indicia of the internal identifier in the second memory medium.

11. The tape library of claim 9, wherein:

the external identifier comprises a bar code; and

the internal identifier comprises a serial number not associated with the external identifier.

12. The tape library of claim 9 wherein the library controller receives a response to the request for the internal identifier after the tape drive receives the tape cartridge and the tape drive controller reads the internal identifier.

13. The tape library of claim 9, wherein the tape drive controller records the external identifier and the internal identifier in a non-volatile memory medium.

14. The tape library of claim 9, wherein the library controller receives a service request from a diagnostic application executing on a host computer, and transmits information from the first memory medium to the host computer in response to the request.

15. The tape library of claim 9, wherein the tape drive controller receives a service request from a diagnostic application executing on a host computer, and transmits information from an event log maintained by the tape drive controller to the host computer in response to the request.

16. A computer program product comprising logic instructions stored on a computer readable medium which, when executed by a processor, cause the processor to recording an error in a tape drive by performing operations, comprising:

transferring a tape cartridge to a tape drive having a tape drive controller after reading an external identifier on the tape cartridge with a tape library controller;

reading, with the tape drive controller, an internal identifier of the tape cartridge;

receiving, in the tape library controller, the internal identifier associated with the tape cartridge;

recording, in a memory medium associated with the tape library controller, the internal identifier; and

associating, in the memory medium, the internal identifier with the external identifier associated with the tape cartridge.

17. The computer program product of claim 16, further comprising logic instructions which, when executed by the processor, cause the processor to:

issue a request for the internal identifier from the tape library controller to the tape drive controller; and

receive a response to the request.

18. The computer program product of claim 16, further comprising logic instructions which, when executed by the processor, cause the processor to record the internal identifier in non-volatile memory medium.

19. The computer program product of claim 16, further comprising logic instructions which, when executed by the processor, cause the processor to record the internal identifier in the memory medium.

20. The computer program product of claim 16, further comprising logic instructions which, when executed by the processor, cause the processor to:

receive, in the tape library controller, a service request from a diagnostic application executing on a host computer; and

transmit information from the memory medium to the host computer in response to the request.

21. The computer program product of claim 16, further comprising logic instructions which, when executed by the processor, cause the processor to:

receive, in the tape drive controller, a service request from a diagnostic application executing on a host computer; and

transmit information from an event log maintained by the tape drive controller to the host computer in response to the request.

22. The computer program product of claim 16, further comprising logic instructions which, when executed by the processor, cause the processor to provide information in the memory medium to identify the tape cartridge in a subsequent error analysis routine.