Apparatus and method to store original point-in-time data

Details Apparatus and method to store original point-in-time data Apparatus and method to store original point-in-time data

2008-07-29

2011-11-08

Elmore, Stephen (Department: 2188)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S112000, C711S114000, C711S156000, C711S158000, C707S639000, C707S649000, C707S655000

Reexamination Certificate

active

08055868

ABSTRACT:
A method to store point-in-time data, comprising establishing a block size, providing source data storage comprising (S) blocks, and target data storage comprising (T) blocks. The method configures (B) source storage segments and (B) target storage segments, and receives updated point-in-time data for original point-in-time data written to an (i)th source storage segment. The method then determines if a (j)th target storage segment comprises available storage capacity to store the original point-in-time data. If a (j)th target storage segment comprises available storage capacity to store the original point-in-time data, the method writes the original point-in-time data to that (j)th target storage segment.

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