Claims
- 1. Library apparatus operable under control of a host computer comprising:a plurality of removable storage media for storing data accessible by the host computer or redundancy data generated by said data, said plurality of removable storage media being constructed as a physical media group; one or more spare removable storage media being physically the same as said removable storage media, for use upon occurrence of malfunction on one of said plurality of removable storage media, said one or more spare removable storage media being used as removable storage media after reproduction of data stored on said removable storage media in which said malfunction occurred; a controller; physical R/W devices loading said removable storage media, and performing data recording and reproduction operations for said loaded removable storage media in accordance with an instruction outputted from said host computer; a media carrying robot; and a rack structure having a first storage unit for housing said plurality of removable storage media and a second storage unit for housing said one or more of spare removable storage media.
- 2. Library apparatus according to claim 1, further comprising:means for issuing an instruction that controls said media carrying robot to move said plurality of removable storage media from said first storage unit to said physical R/W devices in accordance with said instruction outputted said host computer; and means for issuing an instruction that controls said media carrying robot to move said spare removable storage media from said second storage unit to said one of physical R/W devices in accordance with a request for exchanging said removable storage media.
- 3. A library apparatus comprising:a plurality of removable storage media forming a physical media group to store data accessible by a host computer or redundancy data generated by said data; a spare removable storage media, similar in structure to said removable storage media, to use upon occurrence of a malfunction on one of said plurality of removable storage media, said spare removable storage media to be used as removable storage media after reproduction of data stored on said removable storage media having said malfunction; a controller; a plurality of physical R/W devices to load said removable storage media, and to perform data recording and reproduction operations for said loaded removable storage media; a media carrying robot; and a rack structure having a first storage unit for housing said plurality of removable storage media and a second storage unit for housing said spare removable storage media.
- 4. A library apparatus according to claim 3, further comprising:means for issuing an instruction that controls said media carrying robot to move said plurality of removable storage media from said first storage unit to said physical R/W devices in accordance with an instruction from said host computer; and means for issuing an instruction that controls said media carrying robot to move said spare removable storage media from said second storage unit to one of said physical R/W devices in accordance with a request for exchanging said removable storage media.
Priority Claims (1)
Number |
Date |
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9-060518 |
Mar 1997 |
JP |
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Parent Case Info
This application is a Continuation Application of U.S. patent application Ser. No. 09/038,816 now U.S. Pat. No. 6,237,109, filed Mar. 12, 1998, the subject matter of which is incorporated herein by reference.
US Referenced Citations (9)
Non-Patent Literature Citations (3)
Entry |
Aspinwall et al., “Troubleshooting Your PC”, pp. 47-49. |
“A Case for Redundant Arrays of Inexpensive Disks (RAID)” by D. Patterson, AL, pp. 109-116, Chicago, IL, Jun. 1-3, 1988. |
Bell, “DVD Applications”, Comdex '96, slides 1-10, Nov. 20, 1996. |
Continuations (1)
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Number |
Date |
Country |
Parent |
09/038816 |
Mar 1998 |
US |
Child |
09/837182 |
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US |