MSA500 Package Cluster Array Rebuild

[MGATTOR]

Hi,

I have a package cluster with 2 DL380 G3 and a MSA500.
The MSA 500 is fully loaded with 36GB disks.
My operating system is W2K3 with SP1.
For two times this week when a disk fails (the first disk to fail was disk 1 and today is disk 5) the cluster resources jump from one node to the other and finally the cluster service stops.
Then Insights tell me that a rebuild is started (witch takes long time) and the cluster service stays down until the rebuild finishes.
When the rebuild ends the cluster service starts ok, and I can replace de damaged disk without deny of service.

I would appreciate if someone could help me.

Thanks.