SCSI Devices
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NOTE Click Here to review supported SCSI devices for the HP e3000 server.
SCSI Bus Speed Selection
This section describes the procedure for setting the speed of the external SCSI bus using the Boot Console
Handler (BCH) commands. The HP-UX SCSI driver works with Prelude firmware to achieve correct SCSI
speeds.
The driver does what the firmware says, no matter what the capabilities of the controller, drives, cables, and
enclosure are.
The SCSI speed change command must be used with care. Results are unpredictable if you set a speed which
the cable, drives, and controller board is not supported.
Setting SCSI Port Speed and Controller Initiator ID
The SCSI command is available from the Boot Console Handler (BCH) menu.
The command has as variety of uses including:
• Displaying and setting the SCSI transfer rates
• Displaying and setting SCSI controller initiator IDs
Displaying and Setting SCSI Transfer Rate
To set the SCSI transfer rate access the BCH menu and proceed as follows:
1. At the BCH prompt enter:
SCSI rate <HW path> <rate>
NOTE The default rate equals ultra for the Core I/O internal drives. The default rate equals fast
for the Core I/O SCSI external port controller. Add-in HBAs are un programmed by default.
If programmed, the driver default value of fast is used for add-in HBAs.
2. Press
<Return>
Displaying and setting SCSI Controller Initiator ID
To display and set SCSI controller initiator ID’s proceed as follows:
1. At the BCH prompt enter:
SCSI init <HW path> <id#>
NOTE id# = The SCSI ID number of the controller on which the device is located.
Acceptable Entries: fast = Fast SCSI
ultra = Ultra SCSI
nolimit = Ultra II, if Ultra II capable, etc.
