Centralized storage management method

Details Centralized storage management method Centralized storage management method

2006-12-19

2006-12-19

Kim, Matthew (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Shared memory area

C711S004000, C711S114000, C711S154000, C711S170000, C711S163000

Reexamination Certificate

active

07152144

ABSTRACT:
A storage system includes plural storage apparatuses storing data, and a storage controller which transmits and receives data between an external computer and the plural storage apparatuses, and further controls the plural storage apparatuses. Logical devices each representing a logical storage area are defined on the storage apparatuses. When one logical device is in a state of allocation to the external computer and stores data used by the external computer, and the logical device is deallocated from the external computer, the storage controller performs a processing such as erasing data from the logical device to be deallocated. The processing is performed according to the logical device being deallocated.

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