发明名称 |
STORAGE SYSTEM AND ITS LOGICAL UNIT MANAGEMENT METHOD |
摘要 |
<p>The size of management information pages for storing format management information is minimized and a management size of the management information pages is reduced. A storage system has a controller(s) for managing an area of a management-information logical unit, which stores format management information to manage whether an access-target logical unit has been formatted or not, by using a former page area and a latter page area, wherein when formatting the access-target logical unit, the controller: calculates a capacity of the format management information based on a capacity of the access-target logical unit; calculates the number of management information pages according to a ratio of the calculated capacity of the format management information to a page management unit; allocates the format management information of one page to the former page area and manages its storage location by using a former page area address; and allocates the format management information of two or more pages to the latter page areas and manages their storage locations by using latter page area addresses and a page length.</p> |
申请公布号 |
WO2013014699(A1) |
申请公布日期 |
2013.01.31 |
申请号 |
WO2011JP04156 |
申请日期 |
2011.07.22 |
申请人 |
HITACHI, LTD.;KAWAGUCHI, YUTARO;NAGATA, KOJI |
发明人 |
KAWAGUCHI, YUTARO;NAGATA, KOJI |
分类号 |
G06F3/06 |
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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