发明名称 |
Instant virtual copy to a primary mirroring portion of data |
摘要 |
Techniques are provided for performing a copy operation. An instant virtual copy operation is issued from a first portion of data to a primary mirroring portion of data, wherein the primary mirroring portion of data corresponds to a secondary mirroring portion of data, and wherein the primary mirroring portion of data and the secondary mirroring portion of data are in a mirroring relationship. The mirroring relationship is transitioned to a duplex pending state in response to determining that the mirroring relationship is in a full duplex state. When the mirroring relationship is in a duplex pending state, each block of data involved in the instant virtual copy operation is transferred from the primary mirroring portion of data to the secondary mirroring portion of data.
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申请公布号 |
US2005268054(A1) |
申请公布日期 |
2005.12.01 |
申请号 |
US20040856197 |
申请日期 |
2004.05.27 |
申请人 |
WERNER SAM C;SPEAR GAIL A;STANLEY WARREN K;BARTFAI ROBERT F |
发明人 |
WERNER SAM C.;SPEAR GAIL A.;STANLEY WARREN K.;BARTFAI ROBERT F. |
分类号 |
G06F12/16;(IPC1-7):G06F12/16 |
主分类号 |
G06F12/16 |
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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