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Can SnapMirror throttle be applied immediately to all running and scheduled transfers

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Applies to

ONTAP 9

Answer

::> options -option-name replication*

::> options -option-name replication.throttle.enable <on|off>

::> options -option-name replication.throttle.incoming.max_kbs <KBps>

::> options -option-name replication.throttle.outgoing.max_kbs <KBps>

Note: All replication throttles in ONTAP are in KiloBytes per second.

  • The ONTAP 9 global throttle affects remote and local Type-DP and Type-XDP SnapMirrors.
  • Changing global throttle takes effect immediately, and is applied to running SnapMirror transfers as well as future transfers.
  • Changing per-relationship throttle does not affect running SnapMirror transfers, but is applied to subsequent transfers.
  • If a global throttle is not desired,  per-relationship throttle can be applied instead.
  • Both types of throttle restrict the bandwidth used by incoming and/or outgoing SnapMirror transfers by limiting SnapMirror access to storage resources.
  • By limiting acces to storage resources, the SnapMirror throttle can reduce SnapMirror's impact on other workloads.
  • SnapMirror global throttle settings can be modified without stopping an active SnapMirror transfer.
  • ONTAP does not provide a built-in feature to automatically change throttle values according to a time schedule. 

Additional Information

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