I haven't really applied SP packs before and I couldn't find a very clear reference on the net on how to do it.
What I have is a Failover cluster with Always On with 2 SQL sever 2012 SP 1 nodes on Windows Server 2012 SP2 OS, and and I want to apply the last SP2 pack, which is CU8, on both of them.
Do I need to apply SP2 only first or I can go directly with SP2 CU8?
Any concerns due to cluster environment? I found reference about how to apply updates on a cluster but I would like any input from someone that has done this before and especially in regards from SP1 to SP2 later packs.