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November 4th, 2011 22:00

Difference between incremental establish and resume in SRDF

Will there be any difference between incremental establish and resume operations in SRDF configuration when the DG is in suspended state, may be interms of speed or whatever..

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465 Posts

November 6th, 2011 13:00

The actual data copy is the same for both operations. A resume from suspend will not need to make the R2 devices Write Disabled ,where as an establish after a split will need to, so there are subtle differences that may cause the foreground part of the operation to have slightly different elapsed times. The tasks that the SRDF resynch performs as part of foreground processing are displayed when the CLI command is run so you can see how long each step takes until the copy begins.

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