Service Pack installation fails on passive node : sql server 2008

Hi All,

I am facing an issue while installing Service Pack on sql server 2008 cluster node. Assuming Node A --> Active and node B --> Passive.

Initially i am installing the service pack on passive node(B) which goes through all steps and at the end I get a message stating the Service Pack installation Failed.

When I fail-over the sql services from node A to node B and check the version I see that the service pack patch level has been applied on the passive node(node B).

Later when I install the service pack on node A it installs successfully.

I have come across the same issue for couple of clusters.

Any help would be appreciated.

Thanks,

PraveenDesi