Applying SQL service pack on Heartbeat protected Vcenter (Local DB)

Hi,

I wanted to update my MSSQL DB 2005 to service pack 3, the DB is loccaly stored on the Vcenter server (v4.0)but it is protectd by Heartbeat 5.5 (two similar Vcenter with the same local DB on each).

I'm seraching a procedure to do that, Does someone know hot to update SQL service pack with a heartbeat protected Vcenter ?

Many thanks in advance

Nicolas