Electrical computers and digital processing systems: memory – Storage accessing and control – Specific memory composition
Reexamination Certificate
2007-11-06
2007-11-06
Ellis, Kevin L. (Department: 2188)
Electrical computers and digital processing systems: memory
Storage accessing and control
Specific memory composition
C711S161000, C711S162000, C711S112000, C711S165000, C711S154000, C707S793000
Reexamination Certificate
active
11415799
ABSTRACT:
A storage virtualization system is disclosed for performing data migration operations among the virtual LU (logical units) defined by the system. In one aspect of the present invention, the selection of a target virtual LU is based on a policy that makes a recommendation relating to the target virtual LU. The recommendation is based on the IO activity of the physical devices which constitute the virtual LUs. In another aspect of the present invention, a replacement policy is recommended to replace a current policy. The replacement policy is based on the IO activity of the physical devices which constitute the virtual LUs.
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Chery Mardochee
Ellis Kevin L.
Hitachi Ltd
Mattingly ,Stanger ,Malur & Brundidge, P.C.
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