发明名称 |
Method and means for making a dual volume level copy in a DASD storage subsystem subject to updating during the copy interval |
摘要 |
A volume-to-volume copy method on a DASD storage subsystem concurrent with host CPU application execution and referencing of data on a primary. In this method, updates to data made on a primary volume after the element was copied during a first pass will be deferred and copied only during a second pass rather than interrupting the first pass. This accumulation and deferral of updates to a second pass shortens the volume copy time and reduces application referencing delay.
|
申请公布号 |
US5875479(A) |
申请公布日期 |
1999.02.23 |
申请号 |
US19970779577 |
申请日期 |
1997.01.07 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BLOUNT, LAWRENCE CARTER;MICHOD, CAROL SANTICH |
分类号 |
G06F11/14;(IPC1-7):G06F12/16 |
主分类号 |
G06F11/14 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|