Program, method and apparatus for virtual storage management...

Details Program, method and apparatus for virtual storage management... Program, method and apparatus for virtual storage management...

2005-01-28

2008-11-04

Shah, Sanjiv (Department: 2185)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711S170000, C711S171000, C711S172000

Reexamination Certificate

active

07447838

ABSTRACT:
A capacity designating unit designates a capacity, which a user desires, of virtual disks provided to a disk pool. A first selecting unit selects one (1) or a plurality of physical disks that satisfy the designated capacity from a disk pool that registers the physical disks such that the number of the selected physical disks is minimized, and assigns the selected physical disks to the virtual disks. A second selecting unit selects one (1) or a plurality of physical disks that satisfy the designated capacity such that the number of extents that is the number of areas that are scattered in the physical disk and are not assigned is minimized, and assigns the selected physical disks when the selection by the first selecting unit is unsuccessful.

REFERENCES:
patent: 6715054 (2004-03-01), Yamamoto
patent: 6766416 (2004-07-01), Bachmat
patent: 7035989 (2006-04-01), Hinker et al.
patent: 7080196 (2006-07-01), Kitamura
patent: 7181516 (2007-02-01), Kaneda et al.
patent: 4-181439 (1992-06-01), None
patent: 6-103123 (1994-04-01), None
patent: 7-84840 (1995-03-01), None

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