发明授权
US08117409B2 Method and apparatus for backup and restore in a dynamic chunk allocation storage system
有权
在动态块分配存储系统中备份和恢复的方法和装置
- 专利标题： Method and apparatus for backup and restore in a dynamic chunk allocation storage system
- 专利标题（中）： 在动态块分配存储系统中备份和恢复的方法和装置
-
申请号： US11602968申请日： 2006-11-22
-
公开(公告)号： US08117409B2公开(公告)日： 2012-02-14
- 发明人: Yasunori Kaneda , Junichi Hara , Akira Yamamoto
- 申请人： Yasunori Kaneda , Junichi Hara , 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 ; G06F13/00 ; G06F13/28
摘要：
Backup and restore operations are made possible in a storage system that has dynamic chunk allocation (DCA) capability. In a DCA storage system, a chunk of physical storage area is not allocated to a segment of a volume until a write command is received targeting the segment of the volume. During a restore operation of the volume in the DCA storage system, the wasting of storage capacity when a backup image of the volume is restored is mitigated by preventing allocation of physical storage areas to segments of restore data that are only void data.
公开/授权文献
信息查询
