Electrical computers and digital processing systems: memory – Storage accessing and control – Control technique
Reexamination Certificate
2011-05-17
2011-05-17
Nguyen, Than (Department: 2187)
Electrical computers and digital processing systems: memory
Storage accessing and control
Control technique
C711S153000, C711S170000, C711S112000
Reexamination Certificate
active
07945747
ABSTRACT:
In a virtual computer system controlling a disk volume and a virtual server which is connected to the disk volume, to which the area of the disk volume is allocated as a virtual disk and which executes a process using the allocated virtual disk, the virtual computer system erases information stored in the virtual disk allocated to the virtual server to be deleted correspondingly with the deletion of the virtual server. According to another embodiment of the present invention, an administrative server is provided to select a server system which is low in load from among plural server systems controlling virtual servers as a server system for erasing information stored in the virtual disk allocated to the virtual server to be deleted.
REFERENCES:
patent: 2005/0050342 (2005-03-01), Boivie et al.
patent: 2006/0112342 (2006-05-01), Bantz et al.
patent: 2007/0233455 (2007-10-01), Zimmer et al.
patent: 2007/0294676 (2007-12-01), Mellor et al.
patent: 2007/0300221 (2007-12-01), Hartz et al.
Kataoka Eri
Takamoto Yoshifumi
Brundidge & Stanger, P.C.
Hitachi , Ltd.
Nguyen Than
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