发明名称 |
Method and apparatus for improving performance of drive linking through use of hash tables |
摘要 |
A method for routing an input/output request for a particular logical volume. In a preferred embodiment, partitions are assigned to logical volumes, wherein an arbitrary number of partitions can be assigned to a logical volume and the partitions can be of an arbitrary size. Each logical volume is divided into a plurality of zones, wherein the zones for a particular logical volume are substantially equal in size. A zone table is created whose entries contain data about one or two partitions that correspond to that zone. Responsive to receiving an input/output request directed to a logical volume, the zone table entries for a first and a last sector listed in the input/output request are used to determine to which partitions in the logical volume the input/output request should be routed.
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申请公布号 |
US6449705(B1) |
申请公布日期 |
2002.09.10 |
申请号 |
US19990392832 |
申请日期 |
1999.09.09 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
PELOQUIN MARK A.;RAFANELLO BENEDICT MICHAEL;STILES JOHN CAMERON |
分类号 |
G06F3/06;G06F13/00;G11B20/12;(IPC1-7):G06F13/00 |
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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