Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2011-07-05
2011-07-05
Krofcheck, Michael (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711SE12103, C707S638000, C707S639000
Reexamination Certificate
active
07975115
ABSTRACT:
A method and device for managing snapshot data is provided. Snapshots may be created having a preserved data area and a write data area. The preserved data area is used to maintain snapshot data corresponding to the point-in-time when the snapshot was created while the write data area is used to facilitate host read/write access to the snapshot. By maintaining two separate areas, the snapshot can be written to without altering the point-in-time representation of the snapshot.
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Lee Kent
Rodriguez Elizabeth G.
Vu Ngoclan Thi
Wayda James George
Dot Hill Systems Corporation
Ellsworth Matthew R.
Krofcheck Michael
Lavan Thomas J.
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