| 发明名称 |
Delayed instant copy operation for short-lived snapshots |
| 摘要 |
A method, including defining a snapshot referencing a source partition of a storage volume on a storage device, and receiving a request to write a block of data to the source partition. Upon receiving the write request, a delayed instant copy operation is initiated by allocating a target partition on the storage device and replacing, in the storage volume, the source partition with the target partition. A definition of a condition for completion of the delayed instant copy operation is received, and the delayed instant copy operation is completed upon the condition being met. |
| 申请公布号 |
US8751758(B2) |
申请公布日期 |
2014.06.10 |
| 申请号 |
US201113175680 |
申请日期 |
2011.07.01 |
| 申请人 |
International Business Machines Corporation |
发明人 |
Garmiza Ehood;Lotem Eyal;Nitzan Assaf;Weissbrem Eliyahu |
| 分类号 |
G06F12/16;G06F11/14;G06F17/30 |
主分类号 |
G06F12/16 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method, comprising:
defining a snapshot referencing a source partition of a storage volume on a storage device; receiving a request to write a block of data to the source partition; initiating a delayed instant copy operation upon receiving the write request, by allocating a target partition on the storage device and replacing, in the storage volume, the source partition with the target partition; receiving a definition of a condition for completion of the delayed instant copy operation; wherein the condition comprises a cancellation of the snapshot; and completing the delayed instant copy operation upon the condition being met.
|
| 地址 |
Armonk NY US |
