Implementing the MetroCluster configuration

You must run the metrocluster configure command to start data protection in a MetroCluster configuration.

Before you begin

There should be at least two non-root mirrored data aggregates on each cluster.
Additional data aggregates can be either mirrored or unmirrored.

You can verify this with the storage aggregate show command.

Note: If you want to use a single mirrored data aggregate, then see step 1 for instructions.
The ha-config state of the controllers and chassis must be mcc.

About this task

You issue the metrocluster configure command once, on any of the nodes, to enable the MetroCluster configuration. You do not need to issue the command on each of the sites or nodes, and it does not matter which node or site you choose to issue the command on.

The metrocluster configure command automatically pairs the two nodes with the lowest system IDs in each of the two clusters as disaster recovery (DR) partners. In a four-node MetroCluster configuration, there are two DR partner pairs. The second DR pair is created from the two nodes with higher system IDs.

Procedure

Configure the MetroCluster in the following format:

If your MetroCluster configuration has...	Then do this...
Multiple data aggregates	From any node's prompt, configure MetroCluster: `metrocluster configure node-name`
A single mirrored data aggregate	From any node's prompt, change to the advanced privilege level: `set -privilege advanced` You need to respond with `y` when you are prompted to continue into advanced mode and you see the advanced mode prompt (`*>`). Configure the MetroCluster with the -allow-with-one-aggregate true parameter: `metrocluster configure -allow-with-one-aggregate true node-name` Return to the admin privilege level: `set -privilege admin`

If your MetroCluster configuration has...

Then do this...

Multiple data aggregates

From any node's prompt, configure MetroCluster: metrocluster configure node-name

A single mirrored data aggregate

From any node's prompt, change to the advanced privilege level: set -privilege advanced
You need to respond with y when you are prompted to continue into advanced mode and you see the advanced mode prompt (*>).
Configure the MetroCluster with the -allow-with-one-aggregate true parameter: metrocluster configure -allow-with-one-aggregate true node-name
Return to the admin privilege level: set -privilege admin

Note: The best practice is to have multiple data aggregates. If the first DR group has only one aggregate and you want to add a DR group with one aggregate, you must move the metadata volume off the single data aggregate. For more information on this procedure, see Moving a metadata volume in MetroCluster configurations.

The following command enables the MetroCluster configuration on all of the nodes in the DR group that contains controller_A_1:

cluster_A::*> metrocluster configure -node-name controller_A_1

[Job 121] Job succeeded: Configure is successful.

Verify the networking status on site A: network port show

The following example shows the network port usage on a four-node MetroCluster configuration:

cluster_A::> network port show
                                                          Speed (Mbps)
Node   Port      IPspace   Broadcast Domain Link   MTU    Admin/Oper
------ --------- --------- ---------------- ----- ------- ------------
controller_A_1
       e0a       Cluster   Cluster          up     9000  auto/1000
       e0b       Cluster   Cluster          up     9000  auto/1000
       e0c       Default   Default          up     1500  auto/1000
       e0d       Default   Default          up     1500  auto/1000
       e0e       Default   Default          up     1500  auto/1000
       e0f       Default   Default          up     1500  auto/1000
       e0g       Default   Default          up     1500  auto/1000
controller_A_2
       e0a       Cluster   Cluster          up     9000  auto/1000
       e0b       Cluster   Cluster          up     9000  auto/1000
       e0c       Default   Default          up     1500  auto/1000
       e0d       Default   Default          up     1500  auto/1000
       e0e       Default   Default          up     1500  auto/1000
       e0f       Default   Default          up     1500  auto/1000
       e0g       Default   Default          up     1500  auto/1000
14 entries were displayed.

Verify the MetroCluster configuration from both sites in the MetroCluster configuration.

Verify the configuration from site A: metrocluster show

cluster_A::> metrocluster show

Cluster                   Entry Name          State
------------------------- ------------------- -----------
 Local: cluster_A         Configuration state configured
                          Mode                normal
                          AUSO Failure Domain auso-on-cluster-disaster
Remote: cluster_B         Configuration state configured
                          Mode                normal
                          AUSO Failure Domain auso-on-cluster-disaster

Verify the configuration from site B: metrocluster show

cluster_B::> metrocluster show
Cluster                   Entry Name          State
------------------------- ------------------- -----------
 Local: cluster_B         Configuration state configured
                          Mode                normal
                          AUSO Failure Domain auso-on-cluster-disaster
Remote: cluster_A         Configuration state configured
                          Mode                normal
                          AUSO Failure Domain auso-on-cluster-disaster