Method, apparatus, and system for controlling data storage

Details Method, apparatus, and system for controlling data storage Method, apparatus, and system for controlling data storage

2007-08-30

2010-11-16

Song, Jasmine (Department: 2189)

Electrical computers and digital processing systems: memory

Storage accessing and control

Control technique

C711S161000, C714S006130, C707S640000

Reexamination Certificate

active

07836268

ABSTRACT:
When taking a back up of data stored on a disk in a redundant array of inexpensive disks (RAID) device to a plurality of tape devices, writing of the data is first started on all the tape devices. Once writing of the data is completed on the tape device having the highest data writing speed, writing of the data on other tape devices is stopped, and the data is set as clearing target data to be cleared from the disk of the RAID device. The data stored on the tape device, which has the highest data writing speed, is backed up to the other tape devices at a later timing.

REFERENCES:
patent: 7069379 (2006-06-01), Inagaki
patent: 7343459 (2008-03-01), Prahlad et al.
patent: 2006/0253731 (2006-11-01), Petruzzo
patent: 07-306757 (1995-11-01), None
patent: 2003-058326 (2003-02-01), None

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