Method and apparatus for using extended disk sector...

Details Method and apparatus for using extended disk sector... Method and apparatus for using extended disk sector...

2005-12-06

2005-12-06

Thai, Tuan V. (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S100000, C711S112000

Reexamination Certificate

active

06973553

ABSTRACT:
A method and apparatus for providing extended disk sector formatting to assist in backup and hierarchical storage management is disclosed. A part of the extended sector format is used to include a field for indicating whether data was written since the last backup. This backup field may be a single bit or could be larger to indicate age since last backup.

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“Enhanced RAID-5 Error Recovery in Response to Drive Hard Read Errors,” IBM Technical Bulletin Disclosure, Article 41188, Jul. 1998, pp. 964, 965.

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