Method for operating storage system including a main site and a backup
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United States of America Patent
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Sep 19, 2006
Grant Date -
Sep 22, 2005
app pub date -
Jun 3, 2004
filing date -
Mar 17, 2004
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The present invention allows a back-up site used for disaster recovery to be constructed in a shorter period of time.In a disk array device 1 at a main site, a copy 4 of a RAID group 3 is generated. In-frame mirroring is used to generate this copy. The RAID group 4 is removed from the disk array device 1 by an operator and transported to a back-up site. The operator then installs each of the disks of the RAID group 4, respectively, in the disk array device 2, in such a manner that they adopt the same positions as in the RAID group 3. The configuration information 5 used in order to manage the RAID group 3 is downloaded to the disk array device 2 in the back-up site, by means of a portable storage medium 8, or via a communications network 7. Thereupon, the differential data between the disk array devices 1, 2 is reflected in the disk array device 2, whereupon construction of the back-up site is complete.
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