Invention Grant
US08458397B2 Saving log data using a disk system as primary cache and a tape library as secondary cache
失效
使用磁盘系统作为主缓存和磁带库将日志数据保存为二级缓存
- Patent Title: Saving log data using a disk system as primary cache and a tape library as secondary cache
- Patent Title (中): 使用磁盘系统作为主缓存和磁带库将日志数据保存为二级缓存
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Application No.: US13493180Application Date: 2012-06-11
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Publication No.: US08458397B2Publication Date: 2013-06-04
- Inventor: Norie Iwasaki , Koichi Masuda , Tadaaki Minoura , Tomokazu Nakamura , Takeshi Sohda , Takahiro Tsuda
- Applicant: Norie Iwasaki , Koichi Masuda , Tadaaki Minoura , Tomokazu Nakamura , Takeshi Sohda , Takahiro Tsuda
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Griffiths & Seaton PLLC
- Main IPC: G06F12/02
- IPC: G06F12/02
Abstract:
Various embodiments save a plurality of log data in a hierarchical storage management system using a disk system as a primary cache with a tape library as a secondary cache. The user data is stored in the primary cache and written into the secondary cache at a subsequent period of time. The plurality of blank tapes in the secondary cache is prepared for storing the user data and the plurality of log data based on priorities. At least one of the plurality of blank tapes is selected for copying the plurality of log data and the user data from the primary cache to the secondary cache based on priorities. The plurality of log data is stored in the primary cache. The selection of at least one of the plurality of blank tapes completely filled with the plurality of log data is delayed for writing additional amounts of user data.
Public/Granted literature
- US20120272005A1 SAVING LOG DATA USING A DISK SYSTEM AS PRIMARY CACHE AND A TAPE LIBRARY AS SECONDARY CACHE Public/Granted day:2012-10-25
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