More granular and more efficient write protection for disk...

Details More granular and more efficient write protection for disk... More granular and more efficient write protection for disk...

2007-01-09

2007-01-09

Bragdon, Reginald (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S112000

Reexamination Certificate

active

10800737

ABSTRACT:
A storage system, method and system for protecting data stored on a volume of the storage system. The storage system includes a storage media upon which the volume is represented, a disk controller which controls the storage system, and a write once read many (WORM) configuration table having a plurality of entries which indicate by use of a next write pointer which of a plurality of areas of the volume is write protected. Alternatively, the entries of the WORM configuration table could indicate write protected areas of the volume each being defined by use of a beginning offset and an ending offset.

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