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How to keep snapmirror update, not reinitialize when replace controller?

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snapmirror
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DP
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Applies to

SnapMirror

Answer

The original relationship is A mirrored to B. Now want to replace B with C and keep snapmirror update from  B to C, not reinitialize.
  1. Mirror data of B to C. So, there is a same base snapshot in C as A.
  2. Create relationship from A to C.
  3. Use snapmirror resync command to resync data from A to C by the base snapshot.

Additional Information

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