HP StorageWorks SAN Director Installation Guide (A7393-90009, May 2007)

Diagnostics and troubleshooting188
Modems are not
detected by switch.
Modems were connected after the
4/256 SAN Director was powered
on.
Reboot the CP card(s) to which the
modem(s) are connected.
Modems are connected to the wrong
ports on the CP cards.
Ensure that the modem cables are
connected to the ports labeled “RS232”
(the serial ports intended for terminal use
are labeled 10101).
Modems are not correctly configured. Verify that the modems are configured as
specified in ”Setting up and installing
modems” on page 177.
Pins on the modem cable or modem
port might be damaged.
Remove the cable and inspect the pins on
the cable and in the port. Do not reinstall if
the pins on either component have any
visible damage, as this could damage the
pins on the other component. Replace
components as required.
CP Ethernet link
speed is different
than expected or a
link cannot be
established.
There might be a conflict with the CP
Ethernet link speed negotiation set up
by the network.
Specify the CP Ethernet link speed by
typing the ifModeSet command.
Configuration data
is inaccurate or
cannot be accessed.
Chassis was powered off/on while
the WWN card was uninstalled or
failed.
Install an operational WWN card and
power the system off/on again.
The switch was rebooted while the
WWN card was uninstalled or failed.
Initial set up results
in IP
address/Domain ID
conflict.
The switch was connected to the
fabric before being configured.
See the HP StorageWorks Fabric OS
administrator guide for configuration
information.
Table 46 Troubleshooting the 4/256 SAN Director (continued)
Issue Possible cause Recommended action