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snapmirror protect

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Start protection for volumes

Availability: This command is available to cluster and Vserver administrators at the admin privilege level.

Description

The snapmirror protect command establishes SnapMirror protection for a list of volumes. For each volume, the command creates a data protection destination volume in the Vserver specified by the -destination-vserver parameter, creates an extended data protection (XDP) SnapMirror relationship, and starts the initialization of the SnapMirror relationship. This command must be used from the destination Vserver or cluster. This command is not supported for FlexGroup volume constituents, Vserver endpoints or non ONTAP endpoints.

Parameters

-path-list {<[vserver:][volume]>|<[[cluster:]//vserver/]volume>|<hostip:/lun/name>|<hostip:/share/share-name>} - Path List

This parameter specifies the list of volumes to be protected. The list is a comma separated list of paths of the form vserver:volume , for example vs1.example.com:dept_eng1, vs1.example.com:dept_eng2

[-destination-vserver <vserver name>] - Destination Vserver

This parameter specifies the Vserver in which to create the destination volumes of the SnapMirror relationships.

[-schedule <text>] - SnapMirror Schedule

This optional parameter designates the name of the schedule which is used to update the SnapMirror relationships.

-policy <sm_policy> - SnapMirror Policy

This parameter designates the name of the SnapMirror policy which is associated with the SnapMirror relationships.

[-auto-initialize {true|false}] - Auto Initialize

This optional parameter specifies whether or not initializes of the SnapMirror relationships should be started after the relationships are created. The default value for this parameter is true .

[-destination-volume-prefix <text>] - Destination Volume Name Prefix

This optional parameter designates the prefix for the destination volume name. For example if the source path is of the form vserver:volume and the destination-volume-prefix specified is prefix and no destination-volume-suffix is specified, then the destination volume name will be _prefix_volume_dst or possibly prefix_volume_1_dst if a name conflict is encountered. If both prefix and suffix are specified as prefix and __suffix , then the destination volume name will be prefix_volume_suffix or prefix_volume_1_suffix , if a name conflict is encountered.

[-destination-volume-suffix <text>] - Destination Volume Name Suffix

This optional parameter designates the suffix for the destination volume name. If you do not desginate a suffix, a destination volume name with suffix dst_ will be used. For example if the source path is of the form vserver:volume , and the suffix specified is DP_ , the destination volume will be created with the name volume_DP or volume_1_DP if a name conflict is encountered. If both prefix and suffix are specified as prefix and suffix , then the destination volume name will be prefix_volume_suffix or prefix_volume_1_suffix , if a name conflict is encountered.

[-support-tiering {true|false}] - Provision Destination Volumes on FabricPools

This optional parameter specifies whether or not FabricPools are selected when provisioning a FlexGroup during protection workflows. When this parameter is set to true, only FabricPools are used; when set to false, only non-FabricPools are used. Tiering support for a FlexGroup can be changed by moving all of the constituents to the required aggregates. The default value is false . This parameter is supported only for FlexGroups.

[-tiering-policy {snapshot-only|auto|none|backup}] - Destination Volume Tiering Policy

This optional parameter specifies the tiering policy to apply to the destination FlexGroup. This policy determines whether the user data blocks of a FlexGroup in a FabricPool will be tiered to the capacity tier when they become cold. FabricPool combines flash (performance tier) with an object store (external capacity tier) into a single aggregate. The default tiering policy is 'none' for a FlexGroup. The temperature of a FlexGroup block increases if it is accessed frequently and decreases when it is not.

The available tiering policies are:

  • snapshot-only - This policy allows tiering of only the FlexGroup Snapshot copies not associated with the active file system. The default minimum cooling period is 2 days. The -tiering-minimum-cooling-days parameter can be used to override the default using the volume modify command after the destination FlexGroup has been created.

  • auto - This policy allows tiering of both snapshot and active file system user data to the capacity tier. The default cooling period is 31 days. The -tiering-minimum-cooling-days parameter can be used to override the default using the volume modify command after the destination FlexGroup has been created.

  • none - FlexGroup blocks will not be tiered to the capacity tier.

  • backup - On DP FlexGroup this policy allows all transferred user data blocks to start in the capacity tier.

This parameter is supported only for FlexGroups.

Examples

To establish SnapMirror protection for the source volumes vs1.example.com:dept_eng1 and vs1.example.com:dept_eng2 using destination-vserver vs2.example.com and policy MirrorAllSnapshots type the following command:

vs2.example.com::> snapmirror protect -path-list
       vs1.example.com:dept_eng1,vs1.example.com:dept_eng2 -destination-vserver
       vs2.example.com -policy MirrorAllSnapshots