G - Physics – 06 – F
Patent
G - Physics
06
F
354/246, 352/32.
G06F 12/08 (2006.01) G06F 3/06 (2006.01) G11B 27/00 (2006.01) G11B 27/32 (2006.01) G11B 27/36 (2006.01) G11B 27/10 (2006.01)
Patent
CA 1312950
ABSTRACT OF THE DISCLOSURE A method for managing data in a data storage hierarchy, and a data storage hierarchy suitable therefor, is disclosed. The data storage hierarchy includes an optical library and separate manually operated shelf storage. The optical library includes at least one optical disk drive and a plurality of storage cells for the storage of optical disks. The optical library also includes automatic means for transferring optical disks from the storage cells to the optical disk drives in the library. The host processor, upon determining that particular data is required to be stored in the optical library, first checks to determine if the optical disks in the optical library currently have the capacity for the storage of such data. If the capacity exists in the optical library there is no problem and the data is stored therein. If the optical library does not have the required capacity, or if the system operator so requires, the optical disk in the optical library which has least recently been mounted on an optical disk drive therein is destaged from the optical library to the manually operated shelf storage. Another disk may then be fed into the optical library for the storage of the data required therein. TU988007
589396
Clark Connie Mae
Harding Warren Bruce
Tang Horace Tin Sze
International Business Machines Corporation
Saunders Raymond H.
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