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| Oracle Solaris Cluster Geographic Edition Remote Replication Guide for Sun ZFS Storage Appliance Oracle Solaris Cluster 4.1

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## Actions Performed by the Geographic Edition Software During a Switchover

When you run the `geopg switchover` command, the software confirms that the secondary cluster does indeed allow the replication role reversal. The command creates copies of the replicated source projects and exports the shares for use on the target appliance to ensure that no projects and mount point conflicts can occur. The command then destroys such created clones on the target appliance and confirms that the actual reverse replication operation can be performed on the target appliance. The software performs the following actions on the original primary cluster:

- Takes offline the application resource groups in the protection group and places them in the `Unmanaged` state.

- Performs a switchover to the secondary cluster for each Sun ZFS Storage Appliance replication configuration in the protection group.

On the original secondary cluster, the command takes the following actions:

- Runs the script that is defined in the `RoleChange_ActionCmd` property

- Brings online all application resource groups in the protection group

If the command completes successfully, the secondary cluster becomes the new primary cluster for the protection group. The original primary cluster becomes the new secondary cluster. The application resource groups in the protection group are brought online on the new primary cluster and replication from the appliance that is connected from the new primary cluster to the new secondary cluster begins.

The `geopg switchover` command returns an error if any of the previous operations fails. Run the `geoadm status` command to view the status of each component. For example, the Configuration status of the protection group might be set to `Error`, depending on the cause of the failure. The protection group might be activated or deactivated.

If the Configuration status of the protection group is set to `Error`, revalidate the protection group by using the procedures that are described in How to Validate a Sun ZFS Storage Appliance Protection Group.

If the configuration of the protection group is not the same on each partner cluster, you need to resynchronize the configuration by using the procedures that are described in How to Resynchronize a Sun ZFS Storage Appliance Protection Group.

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