Hardware:
Intel D915PCY motherboard 1G RAM (Hyperthreading disabled)
Promise FastTrak S150 (SX4-M) SATA RAID controller
Promise SuperSwap 4100 4 drive enclosure
Maxtor 300 GB SATA hard drives (4 total)

Software:
Netware 6.5 SP4
Veritas BackupExec Agent for Netware.

Problem:

While backing up from the RAID5 array using backupexec, one of the four
drives in the array will fail, recover, and rebuild. This has never
happened during daily use, only during backup. I almost feel this has to
be a problem between the controller and drives, not a netware driver
issue. Any ideas?

Thanks,
Chip