Oracle RAC 11.2.0.4 on RHEL 6.5, 2 node cluster
Please tell, me can we run brbackup and brarchive on any of the instances in the cluster?
Current BR*Tools doco states The necessary BR*Tools executables must exist on the DDB instance host in directory/usr/sap/<SAPSID>/SYS/exe/run
Note 905359 - Using BR*Tools for Oracle RAC databases – states:
BR*Tools are normally started on a dedicated RAC node that is defined in Note 621293
Note 621293 - Oracle 9i/10g: Real Application Clusters – states:
Dedicated Instance
See also 'Dedicated Node'. Dedicated instance is not an Oracle term but is rather a definition from the SAP documentation for the SAP BR*Tools. In this context (SAP, Oracle, RAC, BR*Tools), a dedicated instance (typically/mostly the instance 001) refers to the instance on the cluster node that is primarily configured for administration, that is, (1) the BR*Tools are installed locally on this node, (2) a BR*Tools profile is set up for this instance, and (3) the administration of the Oracle RAC system is mainly controlled from this dedicated instance or from this dedicated RAC node.
Dedicated Node
Dedicated node refers to the cluster node on which the dedicated instance is running (see above). The dedicated instance is the Oracle RAC instance from which administrative tasks are performed that concern the database or the RAC instances, and it is, therefore, fully configured for this purpose. To be prepared if the dedicated node fails, you should configure at least a second node so that it can take over the role of the dedicated node if required.
I can install BR*Tools on both nodes, and set up the profiles on both nodes. Is there any other configuration that needs to be in place so that we can back up from either instance? we would like to make sure that we can attach to an active instance each time the backup runs. So if the DDB instance goes down, the backup can't run, unless we can use the second node. is this correct, and is there a better solution to this?