Management of removable media for multiple device types

• US 5,416,914 A
• Filed: 08/09/1991
• Issued: 05/16/1995
• Est. Priority Date: 08/09/1991
• Status: Expired due to Term

• Current Assignee: Storage Technologies Corporation (Oracle Corporation)
• Original Assignee: Storage Technologies Corporation (Oracle Corporation)
• Inventors: Korngiebel, Ronald W., Leonhardt, Michael L., Milligan, Charles A.
• Primary Examiner(s): Dixon, Joseph L.
• Assistant Examiner(s): BRAGDON, REGINALD GLENWOOD
• Application Number:
  US07/743,250
• Time in Patent Office: 1,376 Days
• Field of Search: 364/478, 364/401, 360/92, 395/425, 369/34
• US Class Current: 711/114
• CPC Class Codes: G11B 15/68 Automatic cassette changing arrangements; automatic tape changing arrangements
• 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 27/36 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

The removable media management system operates with a manual, an automated, or a combination of subsets of manual and automated library system to store and retrieve media cartridges for an associated plurality of drive elements. This system enables the use of a plurality of types of media within the single monolithic cartridge library system and a corresponding plurality of drive elements associated with said library system. Thus, each drive element has associated therewith a number of object storage locations within the library system which contains media of a form and content that matches the drive element. The removable media management system maps the correspondence between object storage location, media type, designated drive element in a manner such that the single library is partitioned into subsets for the user, i.e., the removable media management system provides the capability to define subsets of media types which have consistent mechanical and electrical characteristics, but can vary in data management attributes. This enables the user to transition to another media on an incremental basis, since a single drive element can be added to the library and associated media added as needed without displacing the embedded base (independent of vendor) of installed media handling processes or software or equipment or requiring significant modification to these.

Claims

1. A media storage allocation apparatus, connected to at least one associated computer system, for controlling the storing and retrieving of a plurality of media elements having substantially uniform exterior dimensions, each of said media elements being stored in one of a plurality of uniform size media element storage locations which are formed in an array adapted to receive and store media elements, via at least one media transferring element which transfers said media elements between said uniform Size media element storage locations and a number of drive elements which are connected to said at least one associated computer system to read and write data thereon, comprising:

means for storing data indicative of at least two sets of media elements, each Of said at least two sets of media elements representing media elements having a combination of media element attributes common to that set of media elements and differing from combinations of media element attributes found in others of said at least two sets of media elements;

means for storing data indicative of at least two sets of drive elements, each of said at least two sets of drive elements representing drive elements having a combination of drive attributes common to that set of drive elements and differing from combinations of drive element attributes found in others of said at least two sets of drive elements;

means for storing data indicative of at least one media transferring element, each of said at least one media transferring elements being associated with a plurality of said drive elements for transferring media elements between said uniform size media storage locations and said associated plurality of said drive elements;

means, responsive to said at least one associated computer system requesting access to a media element stored in one of said uniform size media storage locations, for identifying at least one of said drive elements having drive element attributes that correspond to said media element attributes required for processing said requested media element;

means, responsive to said identifying means for selecting at least one of said at least one media transferring elements associated with said identified at least one drive elements; and

means for activating said selected at least one of said at least One media transferring elements to transfer said requested media element from said uniform size media storage location to said identified at least one drive elements.

2. The media storage allocation apparatus of claim 1 wherein said identifying means includes:

means for mapping each of said at least two sets of media elements to at least one of said at least two sets of drive elements.

3. The media storage allocation apparatus of claim 2 wherein said identifying means further includes:

means, responsive to said mapping means, for generating a prioritized list of drive elements which are included in said at least one of said at least two sets of drive elements; and

means, responsive to said generating means, for selecting a single one of said drive elements from said prioritized list of drive elements.

4. The media storage allocation apparatus of claim 1 wherein said identifying means includes:

means, responsive to a user-defined set of allocation rules, for identifying a subset of said identified at least one drive elements.

5. The media storage allocation apparatus of claim 1 wherein said media element attributes include type of media in a media element.

6. The media storage allocation apparatus of claim 1 wherein said media element attributes include exterior physical features of said media elements.

7. The media storage allocation apparatus of claim 1 wherein said media element attributes include data recording format used on said media elements.

8. The media storage allocation apparatus of claim 1 wherein said media element attributes include data management characteristics of data stored on said media elements.

9. The media storage allocation apparatus of claim 1 wherein said drive element attributes include type of media that can be accepted by a drive element.

10. The media storage allocation apparatus of claim 1 wherein said drive element attributes include exterior physical features of said media elements that can be accepted by a drive element.

11. The media storage allocation apparatus of claim 1 wherein said drive element attributes include data recording formats supported by said drive elements.

12. The media storage allocation apparatus of claim 1 wherein said drive element attributes include data management characteristics of data stored on said media elements loaded into said drive elements.

13. A media storage allocation apparatus, connected to at least one associated computer system, for controlling the storing and retrieving of a plurality of media elements having substantially uniform exterior dimensions and each containing one of a number of different types of media, said media elements being stored in a plurality of uniform size media element storage locations which are formed in an array adapted to receive and store said media elements, via at least one media transferring element which transfers said media elements between said uniform size media element storage locations and a number of drive elements which are connected to said at least one associated computer system to read and write data thereon, comprising:

means for storing data indicative of at least two sets of media elements, each of said at least two sets of media elements representing media elements having a common type of media contained therein;

means for storing data indicative of at least two sets of drive elements, each of said .at least two sets of drive elements representing drive elements that accept media elements having a common type of media therein;

means for storing data indicative of at least one media transferring element, each of said at least one media transferring elements serving a plurality of said drive elements;

means, responsive to said at least one associated computer system requesting access to a media element stored in one of said uniform size media storage locations, for identifying at least one of said drive elements that accepts a type of media that corresponds to said media in said requested media element;

means, responsive to said identifying means for selecting at least one of said at least one media transferring elements that serves said identified at least one drive element; and

means for activating said selected at least one of said at least one media transferring elements to transfer said requested media element from said uniform size media storage location to said identified at least one drive elements.

14. The media storage allocation apparatus of claim 13 wherein said identifying means includes:

means for generating a prioritized list of drive elements which accept a type of media that corresponds to said media contained in said requested media element; and

means, responsive to said generating means, for selecting a single one of said drive elements from said prioritized list of drive elements.

15. The media storage allocation apparatus of claim 13 wherein said identifying means includes:

means, responsive to a user-defined set of allocation rules, for identifying a subset of said identified at least one drive elements.

16. The media storage allocation apparatus of claim 13 wherein said at least one of said at least two sets of media elements is further subdivided into subsets defined by exterior physical dimensions of said media elements.

17. The media storage allocation apparatus of claim 13 wherein said at least one of said at least two sets of media elements is further subdivided into subsets defined by data recording format used on said media elements.

18. The media storage allocation apparatus of claim 13 wherein said at least one of said at least two sets of media elements is further subdivided into subsets defined by data management characteristics of data stored on said media elements.

19. The media storage allocation apparatus of claim 13 wherein said at least one of said at least two sets of drive elements is further subdivided into subsets defined by exterior physical features of said media elements that can be accepted by said drive elements.

20. The media storage allocation apparatus of claim 13 wherein said at least one of said at least two sets of drive elements is further subdivided into subsets defined by data recording format used on said drive elements.

21. The media storage allocation apparatus of claim 13 wherein said at least one of said at least two sets of drive elements is further subdivided into subsets defined by data management characteristics of data stored on said media elements loaded into said drive elements.

22. In a media storage allocation apparatus, wherein a plurality of uniform size media element storage locations, each adapted to receive and store one of a plurality of media elements having substantially uniform exterior dimensions and each containing one of a number of different types of media, wherein said uniform size media storage locations are served by at least one media transferring element for storing and retrieving media elements for placement into a number of drive elements connected to at least one associated computer system to read and write data thereon, a method of allocating the placement of said media elements in a drive element comprising the steps of:

storing data indicative of at least two sets of media elements, each of said at least two sets of media elements representing media elements having a combination of media element attributes common to that set of media elements and differing from combinations of media element attributes found in others of said at least two sets of media elements;

storing data indicative of at least two sets of drive elements, each of said at least two sets of drive elements representing drive elements having a combination of drive attributes common to that set of drive elements and differing from combinations of drive element attributes found in others of said at least two sets of drive elements;

storing data indicative of ones of said drive elements served by each of said at least one media transferring elements;

identifying, in response to said at least one associated computer system requesting access to a media element stored in one of said uniform size media storage locations, one of said drive elements having drive element attributes that correspond to said media element attributes associated with said requested media element;

selecting one of said at least one media transferring elements that serves said identified one of said drive elements; and

transferring said requested media element from said uniform size media storage location to said identified one of said drive elements via said selected said at least one media transferring element.

23. In the method of media storage allocation of claim 22 wherein said step of identifying includes:

mapping each of said at least two sets of media elements to at least one of said at least two sets of drive elements.

24. In the method of media storage allocation of claim 23 wherein said step of identifying further includes:

generating a prioritized list of drive elements which are included in said at least one of said at least two sets of drive elements; and

selecting a single one of said drive elements from said prioritized list of drive elements.

25. In a media storage allocation apparatus, wherein a plurality of uniform size media element storage locations are formed in an array, each of said uniform size media storage locations being adapted to receive and store one of a plurality of media elements having substantially uniform exterior dimensions and each containing one of a number of different types of media, served by at least one media transferring element for storing and retrieving a plurality of media elements for placement into a number of drive elements which are connected to at least one associated computer system to read and write data thereon, a method of allocating the placement of said media elements in a drive element comprising the steps of:

storing data indicative of at least two sets of said media elements, each of said at least two sets of media elements representing media elements having a common type of media contained therein;

storing data indicative of at least two sets of said drive elements, each of said at least two sets of drive elements representing drive elements that accept media elements having a common type of media therein;

storing data indicative of the ones of said drive elements served by each of said at least one media transferring elements;

identifying, in response to said at least one associated computer system requesting access to one of said media elements stored in one of said uniform size media storage locations, one of said drive elements that accepts a type of media that corresponds to media contained in said requested media element;

selecting one of said at least one media transferring elements that serves said identified one of said drive elements; and

transferring said requested media element from said uniform size media storage location to said identified one of said drive elements via said selected at least one media transferring element.

26. In the method of media storage allocation of claim 25 wherein said step of identifying includes:

mapping each of said at least two sets of media elements to at least one of said at least two sets of drive elements.

27. In the method of media storage allocation of claim 26 wherein said step of identifying further includes:

generating a prioritized list of drive elements which are included in said at least one of said at least two sets of drive elements; and

selecting a single one of said drive elements from said prioritized list of drive elements.

28. A media storage allocation apparatus, connected to at least one associated computer system, for controlling the storing and retrieving of a plurality of media elements having substantially uniform exterior dimensions and each containing one of a number of different types of media which are stored in a plurality of uniform size media element storage locations formed in an array, each of said uniform size media element locations .being adapted to receive and store one of said media elements, via at least one media transferring element which transfers said media elements between said uniform size media element storage locations and a number of drive elements which are connected to said at least one associated computer system to read and write data thereon, comprising:

means for storing data indicative of a correspondence between each one of said media elements stored in said uniform size media storage locations and at least one of said drive elements, said correspondence representing drive element attributes that are in common with media element attributes of said one media element;

means for storing data indicative of the ones of said drive elements served by each of said at least one media transferring elements; and

means, responsive to said at least one associated computer system requesting access to a media element stored in one of said uniform Size media storage locations, for activating one of said at least One media transferring elements to transfer said requested media element from said uniform size media storage location to one of said corresponding drive elements.

29. The media storage allocation apparatus of claim 28 wherein said correspondence includes type of media contained in said media element.

30. The media storage allocation apparatus of claim 28 wherein said correspondence includes exterior physical features of said media elements.

31. The media storage allocation apparatus of claim 28 wherein said correspondence includes data recording format used on said media elements.

32. The media storage allocation apparatus of claim 28 wherein said correspondence includes data management characteristics of data stored on said media elements.