The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 03, 2012
Filed:
Sep. 14, 2011
Jun Mizuno, Yokohama, JP;
Takeshi Ishizaki, Yokohama, JP;
Jun Mizuno, Yokohama, JP;
Takeshi Ishizaki, Yokohama, JP;
Hitatchi, Ltd., Tokyo, JP;
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 servergroups together logical volumes which use the same physical disk of a storage deviceas 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 computerto the storage device