HP PCIe U320, User Manual

Page: 34 / 61

Symptoms
Troubleshooting steps
The host adapter is detected
during the system's BIOS scan
but it is not detected by the
operating system.
When working properly, the host adapter will be listed in the Windows
Device Manager, as shown in Figure 8 on page 32.
• The driver may not be properly installed. See " Installing Windows
drivers " on page 18 for instructions on installing the operating system
driver.
• The fi rmware and driver may not be at compatible revision levels. The
drivers are updated more frequently than the fi rmware, therefore the
revision levels are seldom the same. The latest driver might also require
a fi rmware update. See http://www.hp.com/support/u320e to verify
that the system has the latest fi rmware and driver version. The fi rmware
version can be viewed when the host adapter is detected during the
computer’s BIOS scan. The driver version can be veri fi ed from within
the Device Manager.
The host adapter is detected
by the operating system, it
detects some of the connected
devices on both SCSI busses,
but does not detect all of the
connected devices.
Check the SCSI cables and devices (see Investigating the SCSI cables and
devices , page 31).
Errors are reported while
trying to fl ash new fi rmware
onto the SCSI host adapter.
• The ATTO Con fi guration Tool validates the structure of the fi le. If
it does not pass the validation checks, the fi le is rejected. The
image fi le may be corrupted. Try downloading the image fi le from
http://www.hp.com/support/u320e again.
The SCSI host adapter fails its
Power On Self Test.
• The BIOS driver will perform several checks to verify that the host
adapter is functioning. If the BIOS driver determines that the adapter
has non-functioning hardware, it will not complete the initialization of the
operating system driver. If the BIOS driver determines that the fi rmware
on the adapter is not functioning, it will complete the initialization in
degraded mode. Under Windows, degraded mode will not perform
I/O but will allow the end user to fl ash the adapter with working
fi rmware. The POST failure will be recorded in the Windows Event Log.
Try to re- fl ash the fi rmware using the Con fi guration Tool. If the problem
persists, replace the host adapter.
The software application
being used to communicate
with the attached SCSI
devices reports Parity or
communication errors.
• Check the SCSI cables. There could be slight damage to one conductor
causing intermittent failures. Ultra320 SCSI requires high quality cables
that are speci fi cally rated for the Ultra320 transmission speeds.
• Try slowing down the data transmission rate by lowering the sync rate
for the drive in question. To do this, launch the ATTO Con fi guration Tool.
Double click on the drive you want to change. The current sync rate
will be displayed. Lower it then close and save the changes. Reboot.
You can also modify the sync rates by entering the Ctrl-Z SCSI setup
program during boot. If this resolves the issue, the SCSI device may
need to be replaced.
34
Troubleshooting