Dell PowerVault 775N (Rackmount NAS Appliance) - Manual (Page 68)

SCSI controller:
Onboard SCSI controller
Integrated RAID controller (see " Activating the Integrated RAID Controller ")
RAID controller card (see " Replacing a RAID Controller Card ")
Cabling:
An onboard RAID controller card is installed by default; no cables are required to use the integrated RAID
controller in either a 1x5 or 2x3 split configuration.
Installing a SCSI Hard Drive
NOTICE: When installing a hard drive, ensure that the adjacent drives are fully installed. Inserting a hard-drive carrier
and attempting to lock its handle next to a partially installed carrier can damage the partially installed carrier's shield
spring and make it unusable.
NOTICE: Not all operating systems support hot-plug drive installation. See the documentation supplied with your
operating system.
NOTE: Your system supports two- or five-drive configurations. The two-drive configuration is supported with the 1x5
backplane configuration, and the five-drive configuration is supported with the 2x3 backplane configuration. Upgrading
to a five- drive configuration requires that you add a SCSI backplane daughter card (see " Installing a SCSI Backplane
Daughter Card ").
1. Remove the bezel (see " Removing the Bezel " in "Troubleshooting Your System").
2. Open the hard-drive carrier handle (see Figure 7-1 ).
Figure 7-1. Installing a SCSI Hard-Drive
NOTICE: Do not insert a hard-drive carrier and attempt to lock its handle next to a partially installed carrier. Doing so
can damage the partially installed carrier's shield spring and make it unusable. Ensure that the adjacent drive carrier is
fully installed.