Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2007-06-11
2010-10-19
Portka, Gary J (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S114000, C711S171000, C711S172000
Reexamination Certificate
active
07818524
ABSTRACT:
A method of data migration for independent storage device expansion and adaptation is disclosed. The method migrates user data of a first storage unit being pre-expanded or pre-adapted to relevant regions of a second storage unit being post-expanded or post-adapted in multiple batches and includes the following steps. A number corresponding to a start data stripe of the first storage unit is provided in each batch. A data stripe migration quantity is determined. Data stripe user data of the determined data stripe migration quantity subsequent to and including the start data stripe of the first storage unit is duplicated and stored in relevant regions of the second storage unit. Subsequent to duplicating and storing each batch, the original user data of data stripes of the determined data stripe migration quantity subsequent to and including the start data stripe of the first storage unit remains undamaged.
REFERENCES:
patent: 5875457 (1999-02-01), Shalit
patent: 2003/0115412 (2003-06-01), Franklin et al.
patent: 2003/0145167 (2003-07-01), Tomita
patent: 2006/0059306 (2006-03-01), Tseng
patent: 1501364 (2004-06-01), None
patent: 1624670 (2005-06-01), None
patent: 200625088 (2006-07-01), None
English language translation of abstract of CN 1501364 (published Jun. 2, 2004).
English language translation of abstract of CN 1624670 (published Jun. 8, 2005).
English language translation of abstract of TW 200625088 (published Jul. 16, 2006).
Portka Gary J
Thomas Kayden Horstemeyer & Risley
Via Technologies Inc.
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