发明名称 |
System and method for failure detection by a storage expander preceding an expander experiencing a failure |
摘要 |
Reduction of data processing capacity attributable to the occurrence of a failure is prevented by promptly identifying the failure location. A storage apparatus includes a plurality of expanders connected to storage media storing data sent from a host system, and a controller for controlling the expanders, wherein the controller sends a failure detection command to the plurality of expanders; the plurality of expanders store the command in their own storage units; and if one expander from among the plurality of expanders detects a failure in another expander immediately following and connected to the one expander, the one expander reads the command stored in a storage unit for the one expander and sends a response including failure detection information corresponding to the command to the controller. |
申请公布号 |
US8560878(B2) |
申请公布日期 |
2013.10.15 |
申请号 |
US201113122695 |
申请日期 |
2011.03.23 |
申请人 |
WASHIYA KOJI;KOGA TSUTOMU;MINOWA NOBUYUKI;HITACHI, LTD. |
发明人 |
WASHIYA KOJI;KOGA TSUTOMU;MINOWA NOBUYUKI |
分类号 |
G06F11/00;G06F11/22 |
主分类号 |
G06F11/00 |
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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