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How many snapmirror snapshot in snapmirror cascade

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ontap-9
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DP
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Applies to

  • ONTAP 9
  • SnapMirror Cascade

Answer

This document describes how many snapmirror snapshot in SnapMirror cascade relationship.

ym_snapmirror_cascade.png

Cascade configuration :  A -> B -> C
 
A: Source storage system
B: Secondary destination storage system
C: Tertiary destination storage system
 
  A (Two) B (Three) C (Three)
Time 1   Snapshot 1 Snapshot 1
Time 2 Snapshot 2 Snapshot 2 Snapshot 2
Time 3 Snapshot 3 Snapshot 3 Snapshot 3

Additional Information

If without finish A -> B snapmirro then start B -> C snapmirror, result is unpredictability and not recommand.
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