You're probably better off using linux software raid than trying to make the promise cards do their (bad) RAID thing. software raid is controller-independent. I've had generally good luck with promise controllers *as plain old ATA cards* although two separate Ultra66 cards silently corrupted data when i attached a >137GB disk to them. > dan1 wrote: > > >I would like to know if promise RAID cards are compatible with CentOS / > >RHEL ?