HP StorageWorks U320e SCSI Host Bus Adapter user guide (AH627-96001, March 2007)

Symptoms
Troubleshooting step s
The host adapter is detected
during the system's BIOS scan
butitisnotdetectedbythe
operating system.
When working properly, the host adapter will be listed in the Windows
Device Manager, as shown in Figure 8 on page 32.
• Thedrivermaynotbeproperlyinstalled. See"Installing Windows
drivers" on page 18 for instructions on installing the operating system
driver.
• The firmware and driver may not be at compatible revision levels. The
drivers are updated more frequently than the firmware, therefore the
revision levels are seldom the same. The latest driver might also require
a fi rmware update. See h
ttp://www.hp.com/support/u320e to verify
that the system has the la test firmware and driver version. The firmware
version can be viewed when the host adapter is detected during the
computer’s BIOS scan. The driver version can be verified from within
the Device Manager.
The host a
dapter is detected
by the ope
rating system, it
detects some of the connected
devicesonbothSCSIbusses,
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 flash new firmware
onto the SCSI host adapter.
• The A TTO Configuration Tool validates the structur e of the file. If
it does not pass th e validation checks, the file is rejected. The
image file may be corrupted. Try downloading the image file from
h
ttp://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 th e firmware
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 a llow the end user to flash the adapter with working
firmware. The POST failure will be recorded in the Windows Event Log.
Try to re-flash the fi rmware using the Configuration 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 specifically rated for the Ultra320 transmission speeds.
• Tr y slowing down the data transmission rate by lowering the sync rate
for the drive in question. To do this, launch the ATTO Configuration 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