发明授权
- 专利标题: Method and apparatus to utilize large capacity disk drives
- 专利标题(中): 利用大容量磁盘驱动器的方法和装置
-
申请号: US12561500申请日: 2009-09-17
-
公开(公告)号: US08285952B2公开(公告)日: 2012-10-09
- 发明人: Hiroshi Arakawa , Akira Yamamoto
- 申请人: Hiroshi Arakawa , Akira Yamamoto
- 申请人地址: JP Tokyo
- 专利权人: Hitachi, Ltd.
- 当前专利权人: Hitachi, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Mattingly & Malur, PC
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
A method of utilizing storage in a storage system comprises prioritizing a plurality of storage areas in the storage system for data recovery with different priorities; and performing data recovery of the storage system 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 in the storage system. In various embodiments, the prioritization is achieved by monitoring the access characteristics, or the priority is specified by the 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.