ATTO Technology iPBridge 2600, Installation And Operation Manual

Page: 25 / 50

20
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 in 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 on page xii in the Appendix 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: off
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.
When changing any setting on the iPBridge, the
configuration must be saved by using either the
saveConfiguration CLI command or through the
ATTO ExpressNAV Restart page.
Check the iPBridge Ethernet port
1 Check Ethernet cable integrity. Check the
cables for solid connections. Cat5 cable can
cause connection issues with Gigabit Ethernet.
Cat6 cable is the best cabling for the iPBridge.
2 Verify the IP address, subnet mask, and
gateway are properly set on each data port on
the iPBridge for your network environment.
Refer to
Getting an IP address on page 10.
3 Verify that the Ethernet speed is set to auto:
invoke the
get EthernetSpeed all command,
check the Ethernet page of the ATTO
ExpressNAV interface, or check the LED link
lights to determine if the Ethernet speed is
correct.
4 Determine if the iPBridge is set to get its IP
information from a DHCP server. If so, verify
that the DHCP server has available IP
addresses. Refer to
Getting an IP address on
page 10.
5 Verify that each used Ethernet port on the
iPBridge can be pinged from the desired host.
Refer to
Ping on page xi.
If the host cannot ping the iPBridge ports and
the iPBridge ports are properly configured,
continue to the Local Area Network/Wide Area
Network section,
Check the LAN/WAN on page
20.
6 If using DHCP, verify that the DHCP server is
assigning the correct IP information to the host.
7 Some older switches/hosts cannot auto
negotiate between the iPBridge and the
switch/host at the desired speed. You may
have to force the host/switch or the iPBridge to
the desired speed.
8 Verify that you are using the correct log in
procedure for your initiator. For example: When
connecting using the Adaptec initiator, the log
on screen requests the iPBridge iqn (iSCSI
qualified name). If left blank, Adaptec cannot
log in. Enter “iSCSI” into this field for auto iqn
discovery.
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 LAN/WAN
1 Verify that the switch/switches are segmented
properly so that hosts and the iPBridge have
access to each other.