发明名称 |
Storage device, method for restoring data in storage device and storage controller |
摘要 |
A virtual volume control unit allocates, upon detection of a write request for new data in a virtual volume to be accessed, an actual storage space of a physical medium existing in the same storage group to the virtual volume in accordance with volume capacity of the new data. A storage control unit stores the new data as actual data in the actual storage space of the physical medium allocated to the virtual volume. And a restoration control unit causes, upon detection of a fallback in data redundancy in the storage group, the actual data in a stored space among the actual storage spaces in the physical medium that caused the fallback to be preferentially restored in an actual storage space in a destination physical medium with reference to the physical media other than the physical medium that caused the fallback in the storage group.
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申请公布号 |
US8402231(B2) |
申请公布日期 |
2013.03.19 |
申请号 |
US201113016520 |
申请日期 |
2011.01.28 |
申请人 |
MAEDA CHIKASHI;DAIKOKUYA HIDEJIROU;IKEUCHI KAZUHIKO;KUBOTA NORIHIDE;FUJITSU LIMITED |
发明人 |
MAEDA CHIKASHI;DAIKOKUYA HIDEJIROU;IKEUCHI KAZUHIKO;KUBOTA NORIHIDE |
分类号 |
G06F13/00 |
主分类号 |
G06F13/00 |
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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