Shared storage device and method for updating contents of...

Details Shared storage device and method for updating contents of... Shared storage device and method for updating contents of...

2006-11-28

2006-11-28

Verbrugge, Kevin (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S162000, C711S114000

Reexamination Certificate

active

07143256

ABSTRACT:
A storage apparatus and a storage method for decreasing the number of storage devices shared by a plurality of servers for reduced size and power consumption and for updating storage contents by preventing services from being degraded. A first virtual volume includes a plurality of storage devices and saves the same data in part or all of the storage devices. A virtualization engine detaches a storage device from the first virtual volume and generates a second virtual volume from the detached storage device. The virtualization engine further detaches a storage device from the first virtual volume and moves the detached storage device to the second virtual volume. The virtualization engine writes the difference between data saved in the first and second virtual volumes to the moved storage device.

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http://www.hitachi.co.jp/Prod/comp/storage/diskarray/what#san
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ftp://download.intel.com/ebusiness/pdf/prod/infiniband/wp012501.pdf.
“Building Storage Networks”, ISBN 0-07-212050-9.

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