Over the past year we have replaced the majority of our DAS with a SAN. For the most part this has been very successful however I do have a couple of database applications that saturate SAN IO. One of the applications is Microsoft SQL Server 2000 based, the other is IBM UniData based.
I am looking for a way to throttle IO such that other applications don't suffer due to IO saturation from these databases.
I would prefer to throttle at the operating system level (Windows 2003) but will also take suggestions for throttling at the DBMS level.