IBM Ultra320, Installation And Using Manual

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Change / Show Characteristics of a PCI-X SCSI RAID Controller Bus
[Entry Fields]
SCSI Adapter scsi5
Description PCI-X U320 SCSI RAID>
Status Available
Location 14-08-00
Adapter card SCSI ID [7]
Wide bus enabled yes
Maximum SCSI Bus Speed in MB/s 320
QAS (Quick Arbitration) Capability Enable
Apply changes to DATABASE only no
6. Select Maximum SCSI Bus Speed in MB/s.
7. Press F4.
8. Select the desired bus speed: 5, 10, 20, 40, 80, 160, or 320 MB/s, and press Enter.
9. Press Enter again.
10. If the change was successful, press F10 to exit SMIT.
If you were not successful in using the procedure “Limit Adapter Speed Using the Maximum SCSI Bus
Speed in MB/s” on page 10, do the following:
1. Select Apply change to DATABASE only.
2. Press F4 and select yes.
3. Press Enter.
4. Press F10 to exit SMIT.
5. At this point, the adapter and its child devices must be reconfigured. To reboot your system, log in as
root user and type shutdown -Fr at the command prompt.
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 10.
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. AIX
users should refer to the PCI-X SCSI RAID Controller Reference Guide for AIX, order number SA23-1323.
Chapter 5. Setting Up the PCI-X Dual Channel Ultra320 SCSI RAID Adapter (AIX)
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