JavaScript is required to for searching.
Skip Navigation Links
Exit Print View
Oracle Solaris Cluster Geographic Edition Data Replication Guide for Sun StorageTek Availability Suite
search filter icon
search icon

Document Information

Preface

1.  Replicating Data With Sun StorageTek Availability Suite Software

2.  Administering Sun StorageTek Availability Suite Protection Groups

Strategies for Creating Sun StorageTek Availability Suite 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 a Sun StorageTek Availability Suite Protection Group

How to Create and Configure a Sun StorageTek Availability Suite Protection Group

How to Modify a Sun StorageTek Availability Suite Protection Group

How to Validate a Sun StorageTek Availability Suite Protection Group

How the Data Replication Layer Validates the Application Resource Groups and Data Replication Entities

How to Delete a Sun StorageTek Availability Suite Protection Group

Administering Sun StorageTek Availability Suite Application Resource Groups

How to Add an Application Resource Group to a Sun StorageTek Availability Suite Protection Group

How to Delete an Application Resource Group From a Sun StorageTek Availability Suite Protection Group

Administering Sun StorageTek Availability Suite Data Replication Device Groups

How to Add a Data Replication Device Group to a Sun StorageTek Availability Suite Protection Group

How the Data Replication Subsystem Verifies the Device Group

How to Modify a Sun StorageTek Availability Suite Data Replication Device Group

How to Delete a Data Replication Device Group From a Sun StorageTek Availability Suite Protection Group

Replicating the Sun StorageTek Availability Suite Protection Group Configuration to a Partner Cluster

How to Replicate the Sun StorageTek Availability Suite Protection Group Configuration to a Partner Cluster

Activating and Deactivating a Protection Group

How to Activate a Sun StorageTek Availability Suite Protection Group

How to Deactivate a Sun StorageTek Availability Suite Protection Group

Resynchronizing a Sun StorageTek Availability Suite Protection Group

How to Resynchronize a Sun StorageTek Availability Suite Protection Group

Checking the Runtime Status of Sun StorageTek Availability Suite Data Replication

Displaying a Sun StorageTek Availability Suite Runtime Status Overview

How to Check the Overall Runtime Status of Replication

Displaying a Detailed Sun StorageTek Availability Suite Runtime Status

3.  Migrating Services That Use Sun StorageTek Availability Suite Data Replication

A.  Geographic Edition Properties for Sun StorageTek Availability Suite

Index

Administering Sun StorageTek Availability Suite Application Resource Groups

To make an application highly available, the application must be managed as a resource in an application resource group.

All of the entities that you configure for the application resource group on the primary cluster, such as application data resources, configuration files, and resource groups, must be replicated to the secondary cluster. The resource group names must be identical on both clusters. Also, the data that the application resource uses must be replicated to the secondary cluster.

This section contains information about the following tasks:

How to Add an Application Resource Group to a Sun StorageTek Availability Suite Protection Group

Before You Begin

You can add an existing resource group to the list of application resource groups for a protection group. Before you add an application resource group to a protection group, ensure that the following conditions are met:

The protection group can be activated or deactivated and the resource group can be either Online or Unmanaged.

If the resource group is Unamanged and the protection group is activated after the configuration of the protection group has changed, then the local state of the protection group becomes Error.

If the resource group to add is Online and the protection group is deactivated, the request is rejected. You must activate the protection group before adding an online resource group.

  1. Log in to a cluster node.

    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.

  2. Add an application resource group to the protection group.
    # geopg add-resource-group resourcegrouplist protectiongroup
    resourcegrouplist

    Specifies the name of the application resource group. You can specify more than one resource group in a comma-separated list.

    protectiongroup

    Specifies the name of the protection group.

    This command adds an application resource group to a protection group on the local cluster. Then the command propagates the new configuration information to the partner cluster if the partner cluster contains a protection group of the same name.

    For information about the names and values that are supported by Geographic Edition software, see Appendix B, Legal Names and Values of Geographic Edition Entities, in Oracle Solaris Cluster Geographic Edition System Administration Guide.

    If the add operation is unsuccessful on the local cluster, the configuration of the protection group is not modified. Otherwise, the Configuration status is set to OK on the local cluster.

    If the Configuration status is OK on the local cluster, but the add operation is unsuccessful on the partner cluster, the Configuration status is set to Error on the partner cluster.

    After the application resource group is added to the protection group, the application resource group is managed as an entity of the protection group. Then the application resource group is affected by protection group operations such as start, stop, switchover, and takeover.

    If the application resource group is a failover type resource group that shares affinities with a device group in the same protection group, the Geographic Edition software alters its RG_affinities property to include a strong, positive affinity to an internal resource group, called a lightweight resource group. This affinity includes failover delegation.

    The application resource group must not have strong, positive affinities that have failover delegation with other resource groups. Otherwise, trying to include a strong positive affinity with failover delegation on the lightweight resource group fails.

    The Geographic Edition software also creates strong dependencies between the HAStoragePlus resource in the application resource group and the HAStoragePlus resource in the lightweight resource group for this device group. This redirection occurs when the protection group is brought online or when an online application resource group is added to an online protection group.

    Do not modify dependencies and resource group affinities between application resource groups and lightweight resource groups.

    The Oracle Solaris Cluster Geographic Edition 3.2 11/09 software installation process on a single-node cluster creates the /var/cluster/rgm/physnode_affinities file. Its existence causes positive and negative resource group affinities to be enforced at the level of the physical node, as they are in all multi-node clusters. Without this file, a single-node cluster uses resource group affinities at the level of the zone-node. The absence of this file can cause the malfunction of clustered applications, so do not remove it unless you understand the potential consequences of its removal.

Example 2-7 Adding an Application Resource Group to a Sun StorageTek Availability Suite Protection Group

This example adds two application resource groups, apprg1 and apprg2, to avspg.

# geopg add-resource-group apprg1,apprg2 avspg

How to Delete an Application Resource Group From a Sun StorageTek Availability Suite Protection Group

You can remove an application resource group from a protection group without altering the state or contents of the application resource group.

Before You Begin

Ensure that the following conditions are met:

  1. Log in to a cluster node.

    You must be assigned the Geo Management RBAC rights profile to complete this procedure. For more information about RBAC, seeGeographic Edition Software and RBAC in Oracle Solaris Cluster Geographic Edition System Administration Guide.

  2. Remove the application resource group from the protection group.

    This command removes an application resource group from a protection group on the local cluster. If the partner cluster contains a protection group of the same name, the application resource group is also removed from the protection group of the partner cluster.

    # geopg remove-resource-group resourcegrouplist protectiongroup
    resourcegrouplist

    Specifies the name of the application resource group.

    You can specify more than one resource group in a comma-separated list.

    protectiongroup

    Specifies the name of the protection group.

    If the resource group that is being removed shares dependencies with other resource groups in the protection group, then you must also remove all other resource groups that share dependencies with the resource group that is being removed.

    If the remove operation failed on the local cluster, the configuration of the protection group is not modified. Otherwise, the Configuration status is set to OK on the local cluster.

    If the Configuration status is OK on the local cluster, but the remove operation is unsuccessful on the partner cluster, the Configuration status is set to Error on the partner cluster.

    Geographic Edition software removes the affinity and resource dependencies between the application resource group and the lightweight resource group.

Example 2-8 Deleting an Application Resource Group From a Protection Group

This example removes two application resource groups, apprg1 and apprg2, from avspg.

# geopg remove-resource-group apprg1,apprg2 avspg