2-node SQL Server 2005 SP3 (9.0.4226) Failover Cluster running on Windows Server 2003 R2 x64 SP2. My passive node suffered a RAID failure on the OS partition. I evicted the failed node, rebuilt it, rejoined it to the cluster, and run SQL setup from the active node to to reinstall SQL Server onto the passive node.
I am at the point where I need to update the passive node's SQL binaries to match the active node's. I also need to upgrade this cluster to SQL Server 2005 SP4.
My question: can I just run SP4 on the active cluster node and have it update the binaries on the inactive node (rather than bringing the inactive node up to 9.0.4226 first, then running SP4)?
I'd like to keep my downtime short, so only having to run 1 service pack is preferred. I haven't been able to find documentation which says I can or can't (or shouldn't).