发明名称 |
Data storing system and data transfer method with a plurality of disk units |
摘要 |
The write data is entered from the upper unit into a nonvolatile cache provided in a controller inside of each disk unit through a channel adaptor, a cache shared by each disk, and a disk adaptor. The data from the cache is compressed by the data compressing and restoring device and is written in the disk. At a time, the management information for compressed data is written in the cache and the disk as well. In case of breaking the management information of the cache when a failure takes place in the cache memory, the management information is written for each disk. Hence, the breakage does not have an adverse effect on the other disks. If the management information of the cache is broken, the management information given into the disk may be replaced with the broken information.
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申请公布号 |
US5392445(A) |
申请公布日期 |
1995.02.21 |
申请号 |
US19930089144 |
申请日期 |
1993.07.07 |
申请人 |
HITACHI LTD. |
发明人 |
TAKAMOTO, KEN-ICHI;NAKAGOSHI, KAZUO;TAKAHASHI, NAOYA;KOGAI, MAKOTO;YOSHIDA, MINORU |
分类号 |
G06F3/06;G06F11/14;G06F12/08;(IPC1-7):G06F11/00;G06F13/00 |
主分类号 |
G06F3/06 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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