Dell OptiPlex GX1 Reference And Installation Manual page 130

7-16 Dell OptiPlex GX1 and GX1p Mini Tower Managed PC Systems Reference and Installation Guide
For OS/2 , see the discussion on partitioning and logically formatting hard-disk drives in
the documentation that came with the operating system.
For Windows NT , see the discussion on partitioning and logically formatting hard-disk
drives in the documentation that came with the operating system.
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For the UNIX operating system , refer to your UNIX documentation.
To use SCSI devices in your Dell computer, you must have a SCSI host adapter card,
which comes with its own SCSI cable. This cable can be used to attach a variety of
SCSI devices (hard-disk drives, tape drives, and so on). The SCSI host adapter config-
ures the devices attached to it as one subsystem—not as independent devices.
Although SCSI devices are installed essentially the same way as other devices, their
configuration requirements are different.
For details on configuring your SCSI subsystem, refer to the documentation that
came with your SCSI devices and/or your host adapter card. The following sub-
sections offer some general guidelines.
Each device attached to a SCSI host adapter card, as well as the card itself, must have
a unique SCSI identification (ID) number from 0 to 7 . When SCSI devices are shipped
from Dell, the default SCSI ID numbers are assigned as follows:
A SCSI host adapter card is configured as SCSI ID 7 .
A SCSI tape drive or digital audio tape (DAT) drive is configured as SCSI ID 6.
A SCSI CD-ROM drive is configured as SCSI ID 5.
SCSI hard-disk drives are usually configured as SCSI ID 0. (The drive used to boot
your system should always be configured as SCSI ID 0.)
NOTE: There is no requirement that SCSI ID numbers be assigned sequentially or that
devices be attached to the cable in order by ID number.