发明名称 |
Storage subsystem and its controlling method |
摘要 |
A storage subsystem in which write data written in a first storage subsystem from a plurality of host computers is copied onto a second storage subsystem, thereby protecting the write data in a multiplex manner. Disclosed are a storage subsystem and its controlling method in which the first storage subsystem has a storage control unit which sets a first threshold for controlling for each of the host computers an occupancy ratio of the write data whose copy to the second storage subsystem is incomplete in a data buffer in the first storage subsystem, and has control logic for delaying the processing of a data write request from each of the host computers on the basis of the first threshold.
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申请公布号 |
US6611903(B2) |
申请公布日期 |
2003.08.26 |
申请号 |
US20010987894 |
申请日期 |
2001.11.16 |
申请人 |
HITACHI, LTD. |
发明人 |
FUJIMOTO TAKEO;KISHIRO SHIGERU |
分类号 |
G06F12/08;G06F3/06;G06F11/20;G06F12/00;G06F12/16;G06F13/00;G06F13/10;G06F13/12;(IPC1-7):G06F12/16 |
主分类号 |
G06F12/08 |
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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