IBM 315, Дополнение к руководству по техническому обслуживанию оборудования, Страница: 61 / 151

If you install wide (16-bit) SCSI devices, you can set the
IDs to any whole number between 8 and 15. If you install
narrow (8-bit) SCSI devices, you can set the IDs to any
whole number between 0 and 6. Refer to the instructions
that come with the SCSI devices for information about
setting a SCSI ID.
Termination Requirements:
All PC Server 315
models come with UltraSCSI adapter preinstalled as a
standard feature. This adapter provides termination for
one end of the SCSI bus (cable) in the server. However,
both ends of the SCSI bus must be terminated. The steps
required to set the termination for the other end of the
SCSI bus are as follows:
Ÿ
PC Server 315 models that come with a hard disk
drive preinstalled in bay 6.
The termination for the hard disk drive is set to
Enabled. When you install additional SCSI devices in
bays 3, 4, and 5, you must disable the termination for
the devices before you install them.
Ÿ
PC Server 315 models that do not come with a
preinstalled hard disk drive.
These models come with a terminator attached to the
last connector on the SCSI cable. When you install a
hard disk drive, it should be installed in bay 6.
Enable termination on the drive and remove the
terminator from the last connector on the SCSI cable.
Connect the last connector on the SCSI cable to the
hard disk drive.
Note
The terminator is used for factory tests only and
should not be used during normal operation.
Refer to the instructions that come with the SCSI device
for more information about termination.
Plug and Play
Plug and Play is a technology designed to make
expanding the server easier. Plug and Play adapter
support is built into the system board in the server. PCI
adapters generally support Plug and Play.
Plug and Play Adapters:
Plug and Play adapters
are easier to install and set up because they are
auto-configuring. This means that there are no jumpers or
switches to set.
A Plug and Play adapter comes with built-in identification
and configuration specifications set in memory on the
adapter that provides installation information to the server
during startup. This information is sensed by the
input/output (I/O) bus and interpreted by the server
Basic
PC Server 315 - Type 8638
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