IBM 865511Y Hardware Maintenance Manual - Page 116

SCSI Con d AutoMatically SCAM protocol, pin, internal SCSI connector for channel B.

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Use the following information when you are installing SCSI devices. 1. Prepare each SCSI device before installation. a. Ensure that the proper SCSI identification (ID) number is set. SCSI IDs range from 0 to 15, and the SCSI ID is automatically or manually set. The default setting for the SCSI controller is 7. If the SCSI device you are installing supports the SCSI Configured AutoMatically (SCAM) protocol, you do not need to manually assign the ID. However, if the device does not support the SCAM protocol, use the documentation that comes with the device to manually set the SCSI ID. 2. Use the instructions in "Working with internal drives" on page 105 to install internal SCSI devices. These instructions are for the general installation of an internal drive in your server. 3. Ensure that the SCSI cables are set up properly. a. The cables attach only one way to the connectors on the system board. b. There are three cable connectors to the SCSI controller on the system board: a 68-pin, internal SCSI connector for channel A; a 68-pin, external SCSI connector for channel B; and a 50-pin, internal SCSI connector for channel B. If your server has an internal SCSI hard disk drive, it is connected to the channel A, 68-pin connector. For connecting external SCSI devices, there is a cable connecting The SCSI controller channel B, 68-pin connector to an external SCSI connector at the rear of the chassis. c. Although the physical specifications of your server limit the number of internal devices you can install, it is possible to add internal and external devices to the SCSI controller. For information on extra cables, contact your IBM reseller or IBM marketing representative. 4. If necessary, use the SCSISelect utility program to change settings for the integrated SCSI controller. Note To locate connectors on the system board, see "Identifying parts on the system board" on page 80. The following are some important points to remember when connecting power and signal cables to internal drives: The diskette drive, hard disk drive, and CD-ROM drive that are preinstalled in your server come with power and signal cables attached. If you replace any 108 Netfinity Server HMM

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Use the following information when you are installing SCSI
devices.
1.
Prepare each SCSI device
before
installation.
a.
Ensure that the proper SCSI identification (ID)
number is set.
SCSI IDs range from 0 to 15,
and the SCSI ID is automatically or manually set.
The default setting for the SCSI controller is 7.
If
the SCSI device you are installing supports the
SCSI Configured AutoMatically (SCAM) protocol,
you do not need to manually assign the ID.
However, if the device does not support the
SCAM protocol, use the documentation that
comes with the device to manually set the SCSI
ID.
2.
Use the instructions in “Working with internal drives”
on page
105 to install internal SCSI devices.
These
instructions are for the general installation of an
internal drive in your server.
3.
Ensure that the SCSI cables are set up properly.
a.
The cables attach only one way to the
connectors on the system board.
b.
There are three cable connectors to the SCSI
controller on the system board:
a 68-pin,
internal SCSI connector for channel A; a 68-pin,
external SCSI connector for channel B; and a
50-pin, internal SCSI connector for channel B.
If
your server has an internal SCSI hard disk drive,
it is connected to the channel A, 68-pin
connector.
For connecting external SCSI devices, there is a
cable connecting The SCSI controller channel B,
68-pin connector to an external SCSI connector
at the rear of the chassis.
c.
Although the physical specifications of your
server limit the number of internal devices you
can install, it is possible to add internal and
external devices to the SCSI controller.
For
information on extra cables, contact your IBM
reseller or IBM marketing representative.
4.
If necessary, use the SCSISelect utility program to
change settings for the integrated SCSI controller.
Note
To locate connectors on the system board, see
“Identifying parts on the system board” on page
80.
The following are some important points to remember
when connecting power and signal cables to internal
drives:
±
The diskette drive, hard disk drive, and CD-ROM
drive that are preinstalled in your server come with
power and signal cables attached.
If you replace any
108
Netfinity Server HMM