IBM Ultra320 - Manual (Page 39)

Change SCSI Bus Configuration
Current Bus configurations are shown. To change
setting hit "c" for options menu. Highlight desired
option then hit Enter
c=Change Setting
/dev/ibmsis0
BUS 0
Maximum Bus Throughput . . : 320 MB/s 320 MB/s
BUS 1 *160 MB/s
Wide Enabled . . . . . . . : Yes 80 MB/s
Maximum Bus Throughput . . : 320 MB/s 40 MB/s
20 MB/s
10 MB/s
5 MB/s
Press Enter to Continue
e=Exit q=Cancel
5. Select Maximum Bus Throughput field and under the desired bus and press c.
6. Press F4.
7. Select the desired bus speed: 5, 10, 20, 40, 80, 160, or 320 MB/s, and press Enter.
Note: Depending on your hardware, some of these options may not be available.
8. Press Enter to continue.
9. Press c to confirm the changes.
Wide Bus Enabled
If you are attaching an external device with an 8-bit SCSI interface cable, set Wide bus enabled to no.
Follow the steps in “Limit Adapter Speed Using the Maximum SCSI Bus Speed in MB/s” on page 20.
Quick Arbitration and Select (QAS) Capability
The QAS capability is automatically controlled by the adapter.
Problem Determination
If you encounter any problems with the adapter after the installation, refer to your system unit
documentation for information about running diagnostics or other problem-determination procedures. Refer
to the PCI-X SCSI RAID Controller Reference Guide for Linux, order number SA23-1327.
Chapter 7. Installing and Setting Up Software for the PCI-X Dual Channel Ultra320 SCSI RAID Adapter (Linux ) 27