Supermicro 4020A-8R, User Manual

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Chapter 6: Advanced Chassis Setup
6-7
Figure 6-6. Mounting a SCSI Drive in a Carrier
!
Important: Regardless of how many SCSI hard drives are in-
stalled, all SCSI drive carriers must remain in the drive bays to
promote proper airfl ow.
Figure 6-5. Removing a SCSI Drive Carrier
3. SCSI backplane
All eight SCSI drives plug into a single SCSI backplane, which provides Ultra320
single-channel operation for all eight SCSI drives. A ribbon cable from JA1 on
the serverboard should be connected to the IN connector on the SCSI backplane.
There are also two power connectors on the backplane that must be connected.
See Figure 6-7 for the locations of backplane connectors - the reverse side of the
backplane has fi ve connectors that the SCSI drives plug into when inserted with a
SCSI drive carrier or mobile rack.