发明名称 |
DISK ARRAY SYSTEM AND TRAFFIC CONTROL METHOD |
摘要 |
Proposed are a disk array system and a traffic control method with which reliability can be improved by preventing system shutdown. A disk array system comprises a controller for controlling data I/O to and from a backend unit; a plurality of expanders provided in the backend unit and connected to the controller by way of a tree-structure topology; a plurality of storage devices provided in the backend unit and each connected to the corresponding expander; and a control unit for controlling the controller on the basis of an I/O request from a host device. The disk array system is configured such that the controller notifies the control unit of a link fault that has occurred in the backend unit, and the control unit, when supplied with the link fault notification from the controller, restricts issuance of I/O requests from the host device or restricts receipt of I/O requests sent from the host device as necessary. |
申请公布号 |
US2012047325(A1) |
申请公布日期 |
2012.02.23 |
申请号 |
US20100741438 |
申请日期 |
2010.04.21 |
申请人 |
SAKUMA YUKI;NITTA TOSHIHIRO;KUROKAWA MIDORI;HITACHI, LTD. |
发明人 |
SAKUMA YUKI;NITTA TOSHIHIRO;KUROKAWA MIDORI |
分类号 |
G06F12/00 |
主分类号 |
G06F12/00 |
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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