| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a storage system which has the capability to prioritize the location of data to be recovered at the occurrence of a disk failure. <P>SOLUTION: A method to utilize a large capacity disk drive comprises prioritizing a plurality of storage areas in a storage system for data recovery with different priorities; and performing data recovery at an occurrence of a failure involving one or more of the storage areas in the storage system based on the priorities. Data recovery for one storage area having a higher priority is to occur before data recovery for another storage area having a lower priority. The prioritization is achieved by monitoring access characteristics, or the priority is specified by a host or management computer based on the usage and/or importance of data stored in the storage system, or the priority is determined by the storage system based on the area assignment/release (i.e., usage) of thin provisioned volumes. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
