General Properties of a Protection Group

Description (string)

Describes the protection group. 

Tuning recommendations: This property can be tuned at any time. 

Category: Optional 

Default: Empty string 

External_Dependency_Allowed (Boolean)

Allow dependencies between resource groups and resources that belong to this protection group and resource groups and resources that do not belong to this protection group when set to true.

Tuning recommendations: This property can be tuned at any time. 

Category: Optional 

Default: false

RoleChange_ActionArgs (string)

Defines a string of arguments that are appended to the end of the command line when the role-change action command, RoleChange_ActionCmd, is run.

Tuning recommendations: This property can be tuned at any time. 

Category: Optional 

Default: Empty string 

RoleChange_ActionCmd (string)

Specifies the path to an executable command. This script is invoked during a switchover or takeover on the new primary cluster when the protection group is started on the new primary cluster. The script is invoked on the new primary cluster after the data replication role changes from secondary to primary and before the application resource groups are brought online. If the data replication role change does not succeed, then the script is not called.  

This path should be valid on all nodes of all partner clusters that can host the protection group.  

Tuning recommendations: This property can be tuned at any time. 

Category: Optional 

Default: Empty string 

Timeout (integer)

Specifies the timeout period for the protection group in seconds. The timeout period is the longest time Sun Cluster Geographic Edition waits for a response after you run a geopg command, such as geopg start, geopg stop, geopg switchover, and geopg takeover. If the command does not respond within the timeout period, the Sun Cluster Geographic Edition software reports the operation as timed out, even if the underlying command eventually completes successfully.

You should identify the amount of time required to perform a role-reversal of the data replication, and set the timeout value to 150% to 200% of that value to ensure enough time for the role-reversal to complete.  

To ensure that an operation has finished on the remote cluster, check system status after a timeout before attempting the operation again. For more information, see Troubleshooting Migration Problems.

The timeout period applies to operations on a per-cluster basis. An operation with a local scope times out if the operation does not complete after the specified timeout period.  

An operation with a global scope consists of an action on the local cluster and an action on the remote cluster. The local and remote action are timed separately so that an operation with a global scope times out during one of the following conditions: 

• The local operation does not complete after the specified timeout period.

• The remote operation does not complete after the specified timeout period.

Tuning recommendations: This property can be tuned only when the protection group is offline. 

Category: Optional  

Range: 20-1000000 seconds 

Default: 200