The previous admin that managed vmware quit and I am taking over for him. I don't have a lot of experience managing and deploying hosts so I am trying to be careful and cover all my bases. One of things we are planning on doing is patching our vmware hosts. They are all Cisco UCS B200 M3/M4 blades running ESXi 6.0.0 3825889 and haven't been patched in 2 years. I looked up the steps and all the baselines must have been attached previously because I only get an option to detach baseline when I right click on them. The next steps are to Scan, Stage and Remediate. That will be simple to just put the hosts in maintenance mode, patch them and reboot. We have Netapp that is fronting all the storage to the hosts and an SRM plugin to manage failover.
What I am worried about is that we are so far behind that patching them might break SRM and some other things. I saw we are running something called Express Patch 7 and I can go all the way up to U3. I also see that there is an express patch 11 available. Another factor here is that we are planning on building a new v6.7 environment in 4-5 months and I am inclined to think I should just wait for the upgrade.
My questions are:
1) When I patch the hosts is it likely that SRM will break? (I am concerned because there isn't a way to fix this unless I get a maintenance window which is unlikely)
2) Should I patch all available patches and try to get up to U3 or Express Patch 11?
3) Should I just wait for 4 months for the upgrade?
