Create a relationship from an Element source to an ONTAP destination

Contributors

The relationship between the source volume in primary storage and the destination volume in secondary storage is called a data protection relationship. You can use the snapmirror create command to create a data protection relationship from an Element source to an ONTAP destination, or from an ONTAP source to an Element destination.

You can use SnapMirror to replicate Snapshot copies of an Element volume to an ONTAP destination system. In the event of a disaster at the Element site, you can serve data to clients from the ONTAP system, then reactivate the Element source volume when service is restored.

Before you begin
  • The Element node containing the volume to be replicated must have been made accessible to ONTAP.

  • The Element volume must have been enabled for SnapMirror replication.

  • If you are using the “mirror-vault” policy type, a SnapMirror label must have been configured for the Element Snapshot copies to be replicated.

    Note

    You can perform this task in the Element software web UI only. For more information, see the Element documentation.

About this task

You must specify the Element source path in the form hostip:/lun/name, where “lun” is the actual string “lun” and name is the name of the Element volume.

An Element volume is roughly equivalent to an ONTAP LUN. SnapMirror creates a LUN with the name of the Element volume when a data protection relationship between Element software and ONTAP is initialized. SnapMirror replicates data to an existing LUN if the LUN meets the requirements for replicating from Element software to ONTAP.

Replication rules are as follows:

  • An ONTAP volume can contain data from one Element volume only.

  • You cannot replicate data from an ONTAP volume to multiple Element volumes.

In ONTAP 9.3 and earlier, a destination volume can contain up to 251 Snapshot copies. In ONTAP 9.4 and later, a destination volume can contain up to 1019 Snapshot copies.

Step
  1. From the destination cluster, create a replication relationship from an Element source to an ONTAP destination:

    snapmirror create -source-path hostip:/lun/name -destination-path SVM:volume|cluster://SVM/volume -type XDP -schedule schedule -policy policy

    For complete command syntax, see the man page.

    The following example creates a SnapMirror DR relationship using the default MirrorLatest policy:

    cluster_dst::> snapmirror create -source-path 10.0.0.11:/lun/0005 -destination-path svm_backup:volA_dst -type XDP -schedule my_daily -policy MirrorLatest

    The following example creates a unified replication relationship using the default MirrorAndVault policy:

    cluster_dst:> snapmirror create -source-path 10.0.0.11:/lun/0005 -destination-path svm_backup:volA_dst -type XDP -schedule my_daily -policy MirrorAndVault

    The following example creates a unified replication relationship using the Unified7year policy:

    cluster_dst::> snapmirror create -source-path 10.0.0.11:/lun/0005 -destination-path svm_backup:volA_dst -type XDP -schedule my_daily -policy Unified7year

    The following example creates a unified replication relationship using the custom my_unified policy:

    cluster_dst::> snapmirror create -source-path 10.0.0.11:/lun/0005 -destination-path svm_backup:volA_dst -type XDP -schedule my_daily -policy my_unified
After you finish

Use the snapmirror show command to verify that the SnapMirror relationship was created. For complete command syntax, see the man page.