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Suspending SnapMirror and SnapVault transfers

It is best to suspend SnapMirror and SnapVault transfers before you upgrade Cloud ONTAP to prevent failed transfers. You must suspend the transfers from the destination system.

Steps

  1. From the CLI, identify the relationships for which the system is the source or destination:
    If you want to... Use this command...
    Identify relationships for which the system is the source snapmirror list-destinations
    Identify relationships for which the system is the destination snapmirror show
  2. For each destination volume, suspend future transfers: snapmirror quiesce -destination-path destination
    If there are no active transfers for the relationship, this command sets the status to Quiesced. If the relationship has active transfers, the status is set to Quiescing until the transfer is completed, and then the status becomes Quiesced.
    Example
    The following example shows transfers involving the destination volume vol1 from SVM svm_COT2 being quiesced:
    COT2::> snapmirror quiesce -destination-path svm_COT2:vol1
  3. Verify that all relationships are quiesced: snapmirror show -status !Quiesced
    This command displays any relationships that are not quiesced.
    Example
    The following example shows that all relationships are quiesced:
    COT2::> snapmirror show -status !Quiesced
    There are no entries matching your query.
    
  4. If any SnapMirror or SnapVault relationships are currently transferring, wait or stop the transfers:
    Option Description
    Wait for the transfers to complete before performing the upgrade. Once each transfer completes, the relationship changes to the Quiesced status.
    Stop the transfers by entering the following command: snapmirror abort -destination-path destination -h
    Note: You must use the -foreground true parameter if you are aborting load-sharing mirror transfers.
    This command stops the transfer and restores the destination volume to the last Snapshot copy that was successfully transferred. The relationship is set to the Quiesced status.