Electrical computers and digital processing systems: memory – Storage accessing and control – Memory configuring
Reexamination Certificate
2010-01-04
2011-10-11
Lo, Kenneth (Department: 2189)
Electrical computers and digital processing systems: memory
Storage accessing and control
Memory configuring
C711S111000, C711S112000
Reexamination Certificate
active
08037276
ABSTRACT:
Disclosed is a system and method for preventing 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.
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Japanese Office Action dated Nov. 30, 2010, issued in corresponding Japanese Patent Application No. 2005-311676.
Ishizaki Takeshi
Mizuno Jun
Brundidge & Stanger, P.C.
Hitachi , Ltd.
Lo Kenneth
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