Invention Grant
US08949524B2 Saving log data using a disk system as primary cache and a tape library as secondary cache
有权
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.: US14029435Application Date: 2013-09-17
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Publication No.: US08949524B2Publication Date: 2015-02-03
- Inventor: Norie Iwasaki , Koichi Masuda , Tadaaki Minoura , Tomokazu Nakamura , Takeshi Sohda , Takahiro Tsuda
- Applicant: International Business Machines Corporation
- 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 ; G06F12/08 ; G06F3/06 ; G06F11/07
Abstract:
Various embodiments are provided for saving a 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. Blank tapes in the secondary cache is prepared for storing the user data and the log data based on priorities. At least one of the blank tapes is selected for copying the log data and the user data from the primary cache to the secondary cache based on priorities. The log data is stored in the primary cache. The selection of at least one of the blank tapes completely filled with the log data is delayed for writing additional amounts of the user data.
Public/Granted literature
- US20140019682A1 SAVING LOG DATA USING A DISK SYSTEM AS PRIMARY CACHE AND A TAPE LIBRARY AS SECONDARY CACHE Public/Granted day:2014-01-16
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