Automated data storage library with target of opportunity recognition

• US 9,761,269 B2
• Filed: 04/22/2016
• Issued: 09/12/2017
• Est. Priority Date: 01/08/2008
• Status: Active Grant

• Current Assignee: International Business Machines Corporation
• Original Assignee: International Business Machines Corporation
• Inventors: Greco, Paul M., Jaquette, Glen A.
• Primary Examiner(s): CUMBESS, YOLANDA RENEE
• Application Number:
  US15/136,678
• Publication Number:
  US 20160240222A1
• Time in Patent Office: 508 Days
• Field of Search: None
• CPC Class Codes: G11B 15/6835 the cassettes being transferred to a fixed recorder or player using a moving carriage
• CPC Class Codes: G11B 15/6895 Automatic tape changing arrangements
• CPC Class Codes: G11B 20/16 using non self-clocking codes, i.e. the clock signals are either recorded in a separate clocking track or in a combination of several information tracks
• CPC Class Codes: G11B 5/00813 magnetic tapes

Abstract

A system according to one embodiment includes a tape library and a tape drive coupled to the tape library. In response to determining that at least one special operation may be performed, the tape library sends a first notification that the tape drive is to remain in a not ready state. The tape library mounts the tape cartridge in the tape drive after determining that at least one special operation may be performed. A method according to one embodiment includes sending a first notification that a tape drive is to remain in a not ready state in response to determining at least one special operation may be performed by said tape drive upon mounting of a tape cartridge therein. The tape cartridge is caused to be mounted in the tape drive after determining that at least one special operation may be performed.

Claims

1. A system for recognizing a target of opportunity comprising:

a tape library;

a tape drive coupled to said tape library, wherein said tape drive is configured to perform at least one special operation; and

wherein said tape library is configured to;

send a first notification that said tape drive is to remain in a not ready state in response to determining that at least one special operation may be performed; and

mount a tape cartridge in said tape drive after determining at least one special operation may be performed.

2. The system of claim 1, wherein said tape library is configured to send a second notification that said tape drive is in a ready state or an error state in response to said tape drive performing said at least one special operation.

3. The system of claim 1, wherein said at least one special operation includes a special operation selected from the group consisting of:

refreshing said tape cartridge, performing a media check, performing a servo format integrity check, performing a tape media diagnostic on said tape cartridge, performing a rekey operation, performing a key migration operation, and performing a key retirement operation.

4. The system of claim 1, wherein said tape library is configured to determine that said at least one special operation may be performed by evaluating parameters against predetermined criteria, wherein mounting the tape cartridge is performed before performing the at least one special operation.

5. The system of claim 4, wherein said parameters comprise a number of mounts since a most recent identical special operation was performed and wherein said predetermined criteria comprise a predetermined maximum threshold number of mounts.

6. The system of claim 4, wherein said parameters comprise an amount of time transpired since a most recent identical special operation was performed and wherein said predetermined criteria comprise a predetermined maximum threshold of time.

7. The system of claim 4, wherein said predetermined criteria is defined by a user.

8. The system of claim 4, said parameters are stored within said tape library.

9. The system of claim 4, wherein said parameters include one or more parameters selected from the group consisting of:

(i) a number of mounts since a most recent refresh, (ii) a number of mounts since a most recent media check, (iii) a number of mounts since a most recent servo format integrity check, (iv) a number of mounts since a most recent media diagnostic, (v) a number of mounts since a most recent rekey, (vi) a number of mounts since a most recent key retirement, and (vii) a number of mounts since a most recent key migration.

10. The system of claim 4, wherein said parameters include one or more parameters selected from the group consisting of:

(i) an amount of time transpired since a most recent refresh, (ii) an amount of time transpired since a most recent media check, (iii) an amount of time transpired since a most recent servo format integrity check, (iv) an amount of time transpired since a most recent media diagnostic, (v) an amount of time transpired since a most recent rekey, (vi) an amount of time transpired since a most recent key retirement, and (vii) an amount of time transpired since a most recent key migration.

11. A computer program product comprising a computer useable medium comprising:

a computer readable program, wherein said computer readable program, when executed on a computer causes the computer to;

recognize a target of opportunity exists by determining that at least one special operation may be performed by a tape drive;

cause a tape cartridge to be mounted in said tape drive after said determining said at least one special operation may be performed;

perform said at least one special operation in response to determining said at least one special operation may be performed; and

send notification that said tape drive is in a ready state or an error state in response to performing said at least one special operation.

12. The computer program product of claim 11, wherein said at least one special operation includes a special operation selected from the group consisting of:

refreshing said tape cartridge, performing a media check, performing a servo format integrity check, performing a tape media diagnostic on said tape cartridge, performing a rekey operation, performing a key migration operation, and performing a key retirement operation.

13. The computer program product of claim 11, wherein said determining said at least one special operation comprises evaluating parameters against predetermined criteria.

14. The computer program product of claim 13, wherein said parameters comprise a number of mounts since a most recent identical special operation was performed and wherein said predetermined criteria comprise a predetermined maximum threshold number of mounts.

15. The computer program product of claim 13, wherein said parameters comprise an amount of time transpired since a most recent identical special operation was performed and wherein said predetermined criteria comprise a predetermined maximum threshold of time transpired.

16. The computer program product of claim 13, wherein said parameters are received from a tape library, wherein the tape cartridge is mounted before said at least one special operation is performed.

17. The computer program product of claim 13, wherein said parameters include one or more parameters selected from the group consisting of:

(i) a number of mounts since a most recent refresh, (ii) a number of mounts since a most recent media check, (iii) a number of mounts since a most recent servo format integrity check, (iv) a number of mounts since a most recent media diagnostic, (v) a number of mounts since a most recent rekey, (vi) a number of mounts since a most recent key retirement, and (vii) a number of mounts since a most recent key migration.

18. The computer program product of claim 12, wherein said parameters include one or more parameters selected from the group consisting of:

(i) a time of a most recent refresh, (ii) a time of a most recent media check, (iii) a time of a most recent servo format integrity check, (iv) a time of a most recent media diagnostic, (v) a time of a most recent rekey, (vi) a time of a most recent key retirement, and (vii) a time of a most recent key migration.

19. A method for recognizing a target of opportunity comprising:

sending a first notification that a tape drive is to remain in a not ready state in response to determining at least one special operation may be performed by said tape drive upon mounting of a tape cartridge therein; and

causing mounting of said tape cartridge in said tape drive after determining at least one special operation may be performed.

20. The method of claim 19, comprising causing performance of said special operation, and sending a second notification that said tape drive is in a ready state or an error state in response to said tape drive performing said at least one special operation.