IBM 866441Y - Netfinity 5600 - 8664, Hardware Maintenance Manual

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Connecting external options
Before you begin:
Ÿ
Read “Safety information” on page 230.
Ÿ
Read the documentation that comes with the
options.
Connecting external SCSI devices:
You can
attach a SCSI storage expansion enclosure to the server.
Cabling requirements:
The SCSI controller in the
server has one channel that can be used to attach external
devices. This channel is connected to the SCSI connector
on the back of the server and supports 14 unique SCSI
IDs. To select and order the correct cables for use with
external devices, contact your IBM reseller or IBM
marketing representative.
For information about the maximum length of SCSI cable
between the terminated ends of the cable, see ANSI SCSI
Standards:
Ÿ
X3.131-1986 (SCSI)
Ÿ
X3.131-1994 (SCSI-2)
Ÿ
X3T10/1071D
Adhering to these standards ensures that the server
operates properly.
Setting SCSI IDs for external devices:
Each SCSI
device that is connected to a SCSI controller must have a
unique SCSI ID, so that the SCSI controller can identify
the devices and ensure that different devices do not
attempt to transfer data at the same time. SCSI devices
that are connected to different SCSI controllers can have
duplicate SCSI IDs. The SCSI controller uses one of the
SCSI IDs; the default SCSI ID for the SCSI controller is 7.
See “SCSI IDs” on page 127 and refer to the instructions
that come with the SCSI devices for more information
about setting a SCSI ID.
Installation procedure:
To attach an external
device:
1. Turn off the server and all attached devices.
2. Follow the instructions that come with the option to
prepare it for installation and to connect it to the
server.
Input/output ports and connectors:
The
input/output (I/O) connectors are for attaching external
devices, such as printers, keyboards, and displays, to the
server. The I/O connectors on the server include:
Ÿ
Two serial-port connectors
Ÿ
One management port C connector
Ÿ
One parallel-port connector
Ÿ
One video-port connector
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