发明申请
- 专利标题: SYNCHRONIZATION OF SEQUENTIAL ACCESS STORAGE COMPONENTS WITH BACKUP CATALOG
- 专利标题(中): 具有备份目录的序列访问存储组件的同步
-
申请号: US13464482申请日: 2012-05-04
-
公开(公告)号: US20120226660A1公开(公告)日: 2012-09-06
- 发明人: Shay H. AKIRAV , Evgeny BUDILOVSKY , Elena DROBCHENKO , Aharon LAZAR , Ofer LENEMAN , Itay MAOZ , Gil E. PAZ
- 申请人: Shay H. AKIRAV , Evgeny BUDILOVSKY , Elena DROBCHENKO , Aharon LAZAR , Ofer LENEMAN , Itay MAOZ , Gil E. PAZ
- 申请人地址: US NY Armonk
- 专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人: INTERNATIONAL BUSINESS MACHINES CORPORATION
- 当前专利权人地址: US NY Armonk
- 主分类号: G06F17/30
- IPC分类号: G06F17/30
摘要:
Subsequent to a storage operation performed on the source instance by a source component, a synchronization message is sent to a replicated component for the replicated instance. The synchronization message is stored locally in a persistent storage location associated with the source component along with an indicator representative of a time the storage operation was performed. Pursuant to receipt of the synchronization message by the replicated component, the replicated component is updated to a dirty state to indicate a lack of full synchronization between the source and replicated instances. Receipt of the synchronization message is acknowledged by the replicated component by sending a dirty state acknowledgement. If, during a subsequent recovery process, the dirty state is not yet cleared, the replicated component is deemed ineligible for participation in a full restoration operation.
公开/授权文献
信息查询