Remote Replication Subsystem Process for Verifying the Data Replication Component

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During protection group validation, the Oracle ZFS Storage Appliance remote replication layer validates the application resource groups and the replication entities by verifying that an application resource group in the protection group has its Auto_start_on_new_cluster property set to False.

When you bring a protection group online on the primary cluster, bring the application resources groups participating in that protection group online only on the same primary cluster. Setting the Auto_start_on_new_cluster property to False prevents the Oracle Solaris Cluster Resource Group Manager (RGM) from automatically starting the application resource groups. In this case, the startup of resource groups is reserved for the Geographic Edition software.

Application resource groups must be online only on the primary cluster when the protection group is activated.

The appliance geocontrol module supplies a script that is used by the script-based plug-in module. The script entry points require the same set of arguments. These arguments are validated for semantics and completeness. The following validation checks are performed:

Are all of the mandatory arguments defined?
Is the remote replication component configuration file for the script-based plug-in evaluation rules defined?
Is the specified replication resource configured with a correct start command, if the resource exists already?

When the Oracle ZFS Storage Appliance remote replication component is added to a protection group, the data replication layer makes the following validations:

Only one replication action is defined at the primary appliance, if the protection group role is PRIMARY.
Only one replication package exists on the secondary appliance, if the protection group role is SECONDARY.
The replication mode is set to continuous.
The ZFS storage appliance can be reached. When an Oracle ZFS Storage Appliance remote replication component is added to a protection group, an Oracle Solaris Cluster data replication resource as defined by the property REPRS in the configuration file is created by this command. This resource monitors the data replication state.

Caution - Do not change, remove, or take offline these resources or resource groups. Use only Geographic Edition commands to administer replication resource groups and resources that are internal entities managed by Geographic Edition software. Altering the configuration or state of these entities directly with Oracle Solaris Cluster commands might result in unrecoverable failure.

When the validation is complete, the Geographic Edition software adds the application resource group to the protection group.

Note - Every entry point of the underlying script-based plug-in has a validation method. In the case of Oracle ZFS Storage Appliance remote replication, all the validation methods are the same.