发明名称 |
Dual controller system for dynamically allocating control of disks |
摘要 |
A disk array system of the type that each controller has an independent and dedicated cache. The disk array system can change control of a desired volume between desired controllers without suspending the system. When volumes are taken over between controllers, a switch-source controller de-stages data of a subject volume on the data cache to a storage subject disk to maintain the disk content reflection (coherency). Even if each controller has an independent and dedicated cache, a desired volume can be taken over between desired controllers without suspending the system. Each controller has a configuration manager which stores the controller number of a switch-destination controller to allow automatic volume take-over and automatic control by the original controller.
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申请公布号 |
US6880059(B2) |
申请公布日期 |
2005.04.12 |
申请号 |
US20020079999 |
申请日期 |
2002.02.19 |
申请人 |
HITACHI, LTD. |
发明人 |
MIZUNO YOICHI;MATSUNAMI NAOTO;MIMATSU YASUYUKI;TAKAMOTO KENICHI |
分类号 |
G06F3/06;G06F11/20;G06F12/00;G06F12/08;G06F12/16;G06F13/00;G06F13/12;(IPC1-7):G06F13/12 |
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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