Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2006-03-29
2008-09-02
Bragdon, Reginald G. (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
Reexamination Certificate
active
07421556
ABSTRACT:
A method for migrating data between heterogeneous data storage devices within a storage area network is disclosed. A first virtualizer presents stored data as a first virtual disk, and then communicates a managed disk representation of the first virtual disk to a second virtualizer. After receiving the managed disk representation, the second virtualizer virtualizes the stored data from the managed disk representation as a second virtual disk. At such point, the stored data can be progressively migrated from the first virtualizer to the second virtualizer.
REFERENCES:
patent: 6260124 (2001-07-01), Crockett et al.
patent: 2002/0083120 (2002-06-01), Soltis
patent: 2004/0123063 (2004-06-01), Dalal et al.
Dalton Gregory
Lane Geoff
Legg Stephen P.
Nicholson Robert B.
Scales William J.
Bragdon Reginald G.
Dillon & Yudell LLP
International Business Machines - Corporation
Mackall Larry T
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