McDATA® 4Gb SAN Switch for HP p-Class BladeSystem Installation Guide (AA-RW1XC-TE, November 2006)

40 Diagnostics and troubleshooting
or
telnet switchname
xxx.xxx.xxx.xxx is the switch IP address and switchname is the switch name associated with the IP
address.
f. Enter an account name and password when the Telnet window prompts you for a login. The default
account name is admin. The default password is password.
g. Enter the following command to open an Admin session to acquire the necessary authority.
McDATA4GbSAN $>admin start
h. Enter the following command to restore the configuration file. When the restore is complete, the
switch will reset.
McDATA4GbSAN (admin) $>config restore
Over temperature blink pattern
An over temperature blink pattern is 5 blinks followed by a two second pause. The 5-blink error pattern
indicates that the air temperature inside the switch has exceeded the failure temperature threshold. The
failure temperature threshold is 70° C.
If the Heartbeat LED shows the over temperature blink pattern, consider the ambient air temperature and
make any necessary corrections. If the condition remains, power down the switch and contact your
authorized maintenance provider.
Logged-in LED diagnostics
Port diagnostics are indicated by the Logged-in LED for each port as shown in Figure 13.
Figure 13 Logged-in LED diagnostics
The Logged-in LED has three indications:
• Continuous illumination—A device is logged in to the port.
• Blinking once per second—Another switch is logging in to the port, or the port is administratively
offline.
• Blinking twice per second—The port is down or an error has occurred.
If a Logged-in LED is blinking twice per second, review the event browser for alarm messages regarding
the affected port. You can also inspect the alarm log using the Show Alarm command. If there is an error,
alarm messages may point to one or more of the following conditions:
• E_Port isolation, page 41
• Excessive port errors, page 42
2 seconds
Logged-in LEDs