Disk array apparatus and method for expanding storage capacity

Details Disk array apparatus and method for expanding storage capacity Disk array apparatus and method for expanding storage capacity

2007-07-24

2007-07-24

Beausoliel, Robert (Department: 2113)

Error detection/correction and fault detection/recovery

Data processing system error or fault handling

Reliability and availability

C711S114000

Reexamination Certificate

active

10161269

ABSTRACT:
A disk interface controller (3) connected to a plurality of HDDS (7) is provided in the disk array apparatus. The plural HDDS1to3constitute a RAID. Three new hard disks having a larger storage capacity than that of an existing HDD are prepared. The existing HDD1is replaced with a new HDD1.The data stored in the existing HDD1is reconstructed by the existing HDD2and HDD3to be stored in the new HDD1.Thus, the existing HDD2and HDD3are successively replaced with new HDD2and HDD3,and the data to be stored is reconstructed by the other two HDDS. After all of three HDDs are replaced with new ones, configuration information existing in each new HDD is modified to expand the storage capacity of each new HDD.

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