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Connecting External Options
Adhering to these standards ensures that your server operates
properly.
Before you install external SCSI devices, you must have the correct
external SCSI cables. The cables must have the proper connector for
the SCSI adapter on one end, and the proper connector for the first
external device on the other end. To select and order the correct
cables for use with external devices, contact your IBM reseller or
IBM marketing representative.
Setting SCSI IDs for External Devices
You must set a unique SCSI ID for each SCSI device that is
connected to a SCSI controller, so that the SCSI controller can
identify the devices and ensure that different devices do not attempt
to transfer data at the same time. Refer to the instructions that
come with the SCSI devices for more information about setting a
SCSI ID.
Notes:
1. If you install an additional SCSI adapter, you can use the same
SCSI IDs that you use for the integrated SCSI controllers.
2. The two integrated SCSI controllers on the system board operate
independently. Each controller can support a maximum of 14,
8-bit or 16-bit SCSI devices. The 16-bit devices support SCSI IDs
0 to 15, and the 8-bit devices support SCSI IDs 0 to 7.
Your server automatically sets SCSI IDs for hot-swap drives. These
IDs are set according to the jumper settings on the hot-swap
backplanes. The SCSI ID for the backplanes is set to 6, and the SCSI
ID for the SCSI controller is set to 7. The processing sequence for
SCSI devices is set according to their IDs.
Chapter 3. Installing Options
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Содержание PC Server 704
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