How to Create and Configure a Hitachi TrueCopy Protection Group

Before You Begin

Before you create a protection group, ensure that the following conditions are met:

• The local cluster is a member of a partnership.

• The protection group you are creating does not already exist.

Protection group names are unique in the global Sun Cluster Geographic Edition namespace. You cannot use the same protection group name in two partnerships on the same system.

You can also replicate the existing configuration of a protection group from a remote cluster to the local cluster. For more information, see Replicating the Hitachi TrueCopy Protection Group Configuration to a Partner Cluster.

Steps

1. Log in to one of the cluster nodes.

   You must be assigned the Geo Management RBAC rights profile to complete this procedure. For more information about RBAC, see Sun Cluster Geographic Edition Software and RBAC.

2. Create a new protection group by using the geopg create command.

   This command creates a protection group on all nodes of the local cluster.

   # geopg create -s partnership-name -o local-role -d truecopy [-p property-settings [-p...]] \ protection-group-name

   -s partnership-name

   Specifies the name of the partnership

   -o local-role

   Specifies the role of this protection group on the local cluster as either primary or secondary

   -d truecopy

   Specifies that the protection group data is replicated by Hitachi TrueCopy

   -p property-setting

   Sets the properties of the protection group

   The properties you can set are the following:

   • Description – Describes the protection group

   • Timeout – Specifies the timeout period for the protection group in seconds

   • Nodelist – Lists the host names of the machines that can be primary for the replication subsystem

   • Cluster_dgs – Lists the device groups where the data is written

   For more information about the properties you can set, see Appendix A, Standard Sun Cluster Geographic Edition Properties.

   protection-group-name

   Specifies the name of the protection group

   For information about the names and values that are supported by Sun Cluster Geographic Edition software, see Appendix B, Legal Names and Values of Sun Cluster Geographic Edition Entities.

   For more information about the geopg command, refer to the geopg(1M) man page.

Example 10–2 Creating and Configuring a Hitachi TrueCopy Protection Group

The following example illustrates how to create a Hitachi TrueCopy protection group on cluster-paris, which is set as the primary cluster:

# geopg create -s paris-newyork-ps -o primary -d truecopy \
-p Nodelist=phys-paris-1,phys-paris-2 tcpg

Example 10–3 Creating a Hitachi TrueCopy Protection Group for Application Resource Groups That Are Online

The following example illustrates how to create a Hitachi TrueCopy protection group, tcpg, for an application resource group, resourcegroup1, that is currently online on cluster-newyork.

1. Create the protection group without the application resource group.

   # geopg create -s paris-newyork-ps -o primary -d truecopy \ -p nodelist=phys-paris-1,phys-paris-2 tcpg

2. Activate the protection group.

   # geopg start -e local tcpg

3. Add the application resource group.

   # geopg add-resource-group resourcegroup1 tcpg