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Oracle Solaris Cluster Geographic Edition Data Replication Guide for Oracle Data Guard |
1. Replicating Data With Oracle Data Guard Software
2. Administering Oracle Data Guard Protection Groups
3. Migrating Services That Use Oracle Data Guard Data Replication
Detecting Cluster Failure on a System That Uses Oracle Data Guard Data Replication
Detecting Primary Cluster Failure
Detecting Failure of the Standby Cluster
Migrating Services That Use Oracle Data Guard With a Switchover
How to Switch Over an Oracle Data Guard Protection Group From the Primary to the Standby Cluster
Actions Performed by the Geographic Edition Software During a Switchover
Forcing a Takeover on Systems That Use Oracle Data Guard
How to Force Immediate Takeover of Oracle Data Guard Services by a Standby Cluster
Actions Performed by the Geographic Edition Software During a Takeover
Recovering Oracle Data Guard Data After a Takeover
How to Resynchronize and Revalidate the Protection Group Configuration
How to Perform a Failback Switchover on a System That Uses Oracle Data Guard Replication
How to Perform a Failback Takeover on a System That Uses Oracle Data Guard Replication
A. Geographic Edition Properties for Oracle Data Guard Broker Configurations
When an error occurs at the data replication level, the error is reflected in the status of the resource in the replication resource group of the relevant the Oracle Data Guard Broker configuration.
For example, suppose that Oracle Data Guard Broker configuration sales-pg, which contains the replicated database sales, is changed from protection mode MaxAvailability to MaxPerformance. The state changes for FAULTED are reflected in the following resource status:
Resource Status = "FAULTED" Resource status message = "FAULTED - Protection mode "MaxAvailability" given for local database sales does not match configured value "MaxPerformance""
Note - The Resource State remains Online because the probe is still running correctly.
Because the resource status has changed, the protection group status also changes. In this case, the local Data Replication state, the Protection Group state on the local cluster, and the overall Protection Group state all become Error.
To recover from an error state, perform the following procedure.
If the recovery procedures change the state of the Oracle Data Guard Broker configuration, this state is automatically detected by the resource and is reported as a new protection group state. If the replication mode does not match the Geographic Edition settings, type:
phys-paris-1# geopg modify-replication-component \ -p replication_mode=New-protection-mode \ ODGConfigurationName protectiongroupname
phys-paris-1# geopg validate protectiongroupname
where protectiongroupname specifies the name of the Oracle Data Guard protection group.
phys-paris-1# geopg list protectiongroupname
where protectiongroupname specifies the name of the Oracle Data Guard protection group.