We have a fairly new Dell PowerEdge 2850. The hard drives were randomly going offline and flashing amber (orange). We thought at first that it was a bad hard drive, PERC card, or backplane, but apparently these SCSI drives are Maxtor Genesis hard drives with a need for a firmware upgrade. The firmware upgrade can be found on Dell’s support site here. The RAID must be in good health before running this update. So far, we’ve had no issues.