Computer system, storage area allocation method, and...

Details Computer system, storage area allocation method, and... Computer system, storage area allocation method, and...

2005-12-21

2010-02-23

Bragdon, Reginald G (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Memory configuring

C711S111000, C711S112000

Reexamination Certificate

active

07669031

ABSTRACT:
Disclosed is to prevent deterioration in I/O performance of a computer resulted from a use of the same physical disk among different logical volumes. A volume management server1010groups together logical volumes which use the same physical disk of a storage device1020as a volume group and allocates a storage area on the physical disk to be used on a priority basis by this volume group to the volume group, and thereby a physical arrangement according to a present physical arrangement of the logical volume can be performed when an automatic expansion of the logical volume is performed thereafter so that the I/O performance deterioration of the computer caused by a mutual interference is avoided at the time of access from the computer1030to the storage device1020.

REFERENCES:
patent: 5129088 (1992-07-01), Auslander et al.
patent: 2003/0009619 (2003-01-01), Kano et al.

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