18
platforms and host adapters, visit
www.attotech.com.
Check iPBridge product versions
For a current list of required updates, visit
www.attotech.com
.
1 If you have not already, open an ExpressNAV
session.
2 Go to the Status page and check the version
number.
3 If you need to update, download the update
from www.attotech.com.
Refer to Updating firmware on page 16.
Check components
Check SCSI devices
1 Check SCSI devices to make sure they are all
set to different SCSI IDs.
By default, the iPBridge SCSI port uses SCSI
ID 7 so drives should use IDs 0 through 6 and 8
through 15.
2 Check the SCSI device power. Make sure the
devices are powering up.
3 Watch the drive lights before, during, and after
startup. Many drives have term power lights
that should be on before startup and turn off
when system boots.
4 Verify the external terminator is the correct type
and does not have damaged pins.
5 Check cable integrity. Check the cables for
solid connections. Make sure they are screwed
down. Inspect cable ends for bent pins.
6 If termination is correct, and the problem
persists, try drives one at a time with different
cables, adding drives and cables until the
problem occurs. This helps pinpoint the drive or
cable causing the problem.
7 Check with the manufacturer of SCSI device(s)
for further troubleshooting methods.
If SCSI devices appear to be working, continue to
the iPBridge SCSI port section.
Check the iPBridge SCSI port
1 Verify the iPBridge has its termination set
properly. By default, termination is
enabled
.
2 Perform a SCSI bus scan on each SCSI port.
If no devices appear, re-check SCSI cables and
termination. If garbage information appears,
the problem is most likely a bad SCSI cable or
termination.
3 Check the internal cabling of the SCSI device.
LVD SCSI cable lengths are limited to 12.5
meters. Longer cable lengths can cause
problems. Internal cabling is also considered
when calculating total cable length. For details,
refer to Cabling on page i of the Appendix.
4 Some older SCSI devices improperly negotiate
with the iPBridge SCSI port. If older devices are
not showing up, contact your service
representative.
5 If all devices appear, invoke the ScsiTargets
command several times on each SCSI port to
verify that the devices can be seen. If devices
disappear then appear again, the problem is
most likely a SCSI cable.
If all devices appear and remain, move to the
iPBridge internal configuration section.
When changing any setting on the iPBridge the
configuration must be saved by using either the
saveConfiguration CLI command or through the
ATTO ExpressNAV interface.
Check the serial port
1 Verify you have the correct settings and that
your terminal is configured to:
• Baud rate: 115200
• Data bits: 8
• Stop bits: 1
• Parity: off
• Flow control: None
• Echo: disabled
2 Verify that your serial cable is less then two
meters in length.
Check the iPBridge internal configuration
Verify that the SCSI devices are mapped
properly. Check in the ATTO ExpressNAV
interface or use the
routedisplay iSCSI
command to show mappings. If devices do not
appear, power down the iPBridge and power back
on. Refer to
Target management
on page 9.
When changing any setting on the iPBridge, the
configuration must be saved.