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Oracle Solaris Cluster Geographic Edition Data Replication Guide for EMC Symmetrix Remote Data Facility |
1. Replicating Data With EMC Symmetrix Remote Data Facility Software
2. Administering SRDF Protection Groups
Strategies for Creating SRDF Protection Groups
Creating a Protection Group While the Application Is Offline
Creating a Protection Group While the Application Is Online
Creating, Modifying, Validating, and Deleting an SRDF Protection Group
How to Create and Configure an SRDF Protection Group
Requirements to Support Oracle Real Application Clusters With Data Replication Software
How to Create a Protection Group for Oracle Real Application Clusters
How the Data Replication Subsystem Validates the Device Group
How to Modify an SRDF Protection Group
Validating an SRDF Protection Group
How to Validate an SRDF Protection Group
How to Delete an SRDF Protection Group
Administering SRDF Application Resource Groups
How to Add an Application Resource Group to an SRDF Protection Group
How to Delete an Application Resource Group From an SRDF Protection Group
Administering SRDF Data Replication Device Groups
How to Add a Data Replication Device Group to an SRDF Protection Group
Validations Made by the Data Replication Subsystem
How the State of the SRDF Device Group Is Validated
Determining the State of an Individual SRDF Device Group
Determining the Aggregate SRDF Device Group State
Determining the SRDF Pair State
How to Modify an SRDF Data Replication Device Group
How to Delete a Data Replication Device Group From an SRDF Protection Group
Replicating the SRDF Protection Group Configuration to a Partner Cluster
How to Replicate the SRDF Protection Group Configuration to a Partner Cluster
Activating an SRDF Protection Group
How to Activate an SRDF Protection Group
Deactivating an SRDF Protection Group
How to Deactivate an SRDF Protection Group
Resynchronizing an SRDF Protection Group
How to Resynchronize a Protection Group
Checking the Runtime Status of SRDF Data Replication
Displaying an SRDF Runtime Status Overview
How to Check the Overall Runtime Status of Replication
Displaying a Detailed SRDF Runtime Status
3. Migrating Services That Use SRDF Data Replication
After you have configured data replication, resource groups, and resources on your primary and secondary clusters and you have created a protection group for those entities on the primary cluster, you can replicate the configuration of the protection group to the secondary cluster.
Before You Begin
Before you replicate the configuration of an SRDF protection group to a partner cluster, ensure that the following conditions are met:
The protection group is defined on the remote cluster, not on the local cluster.
The device groups in the protection group on the remote cluster exist on the local cluster.
The system files on all nodes that can master the application have been updated for the application.
The application resource groups in the protection group on the remote cluster exist on the local cluster.
The Auto_start_on_new_cluster property of the application resource group is set to False. You can view this property by using the clresourcegroup command.
# clresourcegroup show -p auto_start_on_new_cluster apprg1
Setting the Auto_start_on_new_cluster property to False prevents the Oracle Solaris Cluster resource group manager from automatically starting the resource groups in the protection group. Therefore, after the Geographic Edition software restarts and communicates with the remote cluster to ensure that the remote cluster is running and that the remote cluster is the secondary cluster for that resource group. The Geographic Edition software does not automatically start the resource group on the primary cluster.
Application resource groups should be online only on primary cluster when the protection group is activated.
Set the Auto_start_on_new_cluster property to False as follows:
# clresourcegroup set -p Auto_start_on_new_cluster=False apprg1
The HAStoragePlus resource exists in the application resource group to enable devices and mount file systems.
You must be assigned the Geo Management RBAC rights profile to complete this procedure. For more information about RBAC, see Geographic Edition Software and RBAC in Oracle Solaris Cluster Geographic Edition System Administration Guide.
phys-newyork-1 is a node on the secondary cluster. For a reminder of which node is phys-newyork-1 , see Example Geographic Edition Cluster Configuration in Oracle Solaris Cluster Geographic Edition System Administration Guide.
This command retrieves the configuration information of the protection group from the remote cluster and creates the protection group on the local cluster.
phys-newyork-1# geopg get -s partnershipname protectiongroup
Specifies the name of the partnership from which the protection group configuration information should be retrieved and the name of the partnership where the protection will be created locally.
Specifies the name of the protection group.
If no protection group is specified, then all protection groups that exist in the specified partnership on the remote partner are created on the local cluster.
Note - The geopg get command replicates Geographic Edition related entities. For information about how to replicate Oracle Solaris Cluster entities, see Replicating and Upgrading Configuration Data for Resource Groups, Resource Types, and Resources in Oracle Solaris Cluster Data Services Planning and Administration Guide.
Example 2-13 Replicating the SRDF Protection Group to a Partner Cluster
This example replicates the configuration of srdfpg from cluster-paris to cluster-newyork.
# rlogin phys-newyork-1 -l root phys-newyork-1# geopg get -s paris-newyork-ps srdfpg