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3.
SCSI backplane:
All seven SCSI drives plug into the SCSI backplane (p/n SCA742). The
7043M-8 provides single channel, Ultra320 operation while the 7043M-6
provides single channel, Ultra160 operation. There are no jumpers on the
SCSI backplane. A ribbon cable from JA1 on the motherboard should be
connected to the LVD1 connector on the SCSI backplane. There are also
two power connectors on the backplane - both should be connected. See
Figure 6-6 for the locations of backplane connectors - the reverse side of the
backplane has seven connectors that the SCSI drives plug into when inserted
with a SCSI drive carrier. See Figure 6-1 for drive number configuration. You
cannot cascade the SCSI backplane.
Figure 6-6. SCA742 SCSI Backplane
Power Connectors
Always route SCSI power and ribbon cables so that
!
they do not impede airflow or interfere with running
fans.
Important:
are installed, all 7 SCSI drive carriers must remain in
!
the drive bays to promote proper airflow.
Chapter 6: Advanced Chassis Setup
Regardless of how many SCSI hard drives
6-7
LVD1
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