I'm part of TrueSight Capacity Optimization for a large installation, version 11.5
We have a cycle of Red Hat operating system upgrades, moving from RHEL 6 to 7. The TrueSight Presentation server is part of this. It needs to be upgraded from RHEL 6 to 7.
Instead of taking extended downtime measured in days, we're thinking an alternative may be to move TSPS to the secondary server, upgrade the primary os to 7 and then move TSPS functions back to the primary server.
I'm not sure if this differs from doing a TSPS disaster recovery technique. This type of move back & forth is documented in the BMC knowledge base, but I'm not finding anything on a technique to have primary/secondary TSPS and just take the primary offline, upgrade o/s and then bring it back into TSPS service.
Does anyone have familiarity with doing these types of upgrade activities and is there a Best Practices method to it?