Storage system that executes performance optimization that...

Details Storage system that executes performance optimization that... Storage system that executes performance optimization that...

2011-05-17

2011-05-17

Tsai, Sheng-Jen (Department: 2186)

Electrical computers and digital processing systems: memory

Storage accessing and control

Specific memory composition

C711SE12001

Reexamination Certificate

active

07945732

ABSTRACT:
One storage area is selected from two or more storage areas of a high load physical storage device, a physical storage device withal lower load than that of the physical storage device is selected, and it is judged whether the redundancy according to the RAID level corresponding to the logical volume decreases when the data elements stored in the selected storage area are transferred to the selected low load physical storage device. If the result of this judgment is that the redundancy does not decrease, the data elements stored in the selected storage area are transferred to a buffer area of the selected low load physical storage device and the logical address space of the logical volume that corresponds to the selected storage area is associated with the buffer area.

REFERENCES:
patent: 7636801 (2009-12-01), Kekre et al.
patent: 2004/0177218 (2004-09-01), Meehan et al.
patent: 2005/0055603 (2005-03-01), Soran et al.
patent: 2006/0031644 (2006-02-01), Hughes
patent: 2006/0031648 (2006-02-01), Ishikawa et al.
patent: 2009/0319749 (2009-12-01), Ogihara et al.
patent: 07-056691 (1995-03-01), None
patent: 2006-53601 (2006-02-01), None

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