Methods and apparatus for storage virtualization

Details Methods and apparatus for storage virtualization Methods and apparatus for storage virtualization

2005-09-20

2005-09-20

Sparks, Donald (Department: 2187)

Electrical computers and digital processing systems: memory

Address formation

Address mapping

C711S005000, C711S006000, C711S111000, C711S202000, C709S201000, C709S202000, C709S203000, C709S220000, C709S223000, C709S224000, C709S230000, C709S246000, C370S252000, C370S389000, C370S392000, C370S400000, C370S410000, C370S466000, C370S470000

Reexamination Certificate

active

06948044

ABSTRACT:
Methods and apparatus are provided improving data access efficiency in a storage area network. Mechanisms are provided to allow a virtual disk address to be efficiently mapped to a particular physical partition in a virtual disk while recognizing the mirroring, striping, and concatenation characteristics associated with the virtual disk. A variety of indices are used to allow direct access of a physical partition upon identification of a virtual disk address.

REFERENCES:
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patent: 2003/0172149 (2003-09-01), Edsall et al.
Server World, “SAN Virtualization: Just Make Sure It Works”, http://www.serverworldmagazine.com/opinionw/2001/05/10—virtu-ual , OpinionWire May 10, 2001 ©, Butler Direct Limited.
InterOperability Lab Fiber Channel Tutorials and Resources, pp. 1-22, http://www.iolunh.edu/training/fc/fc—tutorial.html, Last updated: May 4, 1998.

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