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

Symptoms
Troubleshooting steps
The host adapter is installed
in the computer but i t does
not appear during the system
BIOS scan.
• Check the adapter in stallation (see Investigating the adapter
installation,page31).
• Verify that the latest version of the computer BIOS is installed. Use
caution when updating the computer’s BIOS. A mistake could leave
thesysteminanunusablestate.
• Remove any non-vital PCI cards from the system to determine if there
is a PCI bus conflict.
• Disconnect any SCSI devices from the host adapter and reboot the
computer. If this resolves the issue, check the SCSI cables and devices
(see Investigating the SCSI cables and devices, p age 31).
• If the computer still does not boot, try installing the host adapter in
a different computer. If the host adapter works in the new computer,
try updating the flash on t he host adapter as described in "Up dating
firmware" on page 19. Then try it again in the original computer.
• If it still fails, report this as a possible interoperability issue between
the host adapter and the computer.
• If the problem follows the host adapter, replace it with a new adapter.
The computer freezes when
the ATTO banner is d isplayed
during the system BIOS scan
Disconnect all devices from the adapter and reboot the system.
If the system still freezes after disconnecting the SCSI devices:
• Remove any non-vital PCI cards from the system to determine if there
is a PCI bus conflict.
• Remove the SCSI host adapter and test it in a different computer (not the
same model). If the card works properly , enter the A TTO ExpressPCI
Utility during the system BIOS scan by hitting Ctrl-Z when prompted.
Ente
rthehostadapterconfiguration menu and disable the BIOS. There
may be a BIOS conflict between the ATTO host adapter and the original
computer. Place the host adapter ba ck into the original machine an d
reboot .
• Ifthisresolvestheissue,reportthisisasaBIOSconflict. Note that
you can continue to operate. Disabling the BIOS will only prevent
th
e computer from booting from an external drive connected to the
h
ost adapter.
•I
f the computer still hangs, replace the host adapter with a new one.
If the system no longer freezes after disconnecting the SCSI devices,
investigate the SCSI cables and devices (see Investigating the SCSI cables
and devices,page31).
The system's BIOS scan
recognizes the host adapter,
butitdoesnotdetectany of
the connected SCSI devices.
The ATTO Technology banner should appear shortly after rebooting the
computer, as shown in Figure 7 on page 32. If the host adapter’s BIOS
is set to Enabled or Scan only,theconnecteddevices,SCSIID,and
negotiated transfer rate for each of the SCSI busses will also be displayed.
• The SCSI host adapter B IOS may have been disabled (factory default
is BIOS Enabled). Set it back to Enabled (if you need to boot from an
external device connected to the host adapter) or Scan Only.
• Investigate the SCSI cables and devices (see Investigating the SCSI
cables and devices, page 31 ).
• Try installing the host adapter in a different PCI slot.
• Try updating the firmware on the host adapter as described in "Updating
firmware"onpage19.
• If all else fails, replace the SCSI host adapter.
The computer's BIOS scan
recognizes the host adapter,
but only detects connected
SCSI devices on one of the
busses. The other bus reports
no devices.
• Swap the devices and cables from the SCSI bus that appears to be
working with the one having issues. If the issue follows the bus, replace
theSCSIhostadapter. IftheissuefollowstheattachedSCSIdevices,
investigate the SCSI cables and devices (see Investigating the SCSI
cables and devices, page 31 ).
User guide
33