Avid Technology MEDIAswitch, Руководство пользователя, Страница: 11 / 34

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A slow-blinking Fault LED (about one blink per second) indicates that the system has registered
an Avid MEDIAswitch event message that will cause this LED to blink. Check the Message Log.
A fast double-blink Port Status LED (about two double-blinks and a pause per second) after
POST indicates that a specific port is disabled, as determined by the diagnostics. Check the
Message Log for the reason for the failure.
Note: Hardware faults always have priority over system events (indicated by a slow-blinking
LED). This means that the LED could, change from fast to slow to fast again if a fan was in the
process of failing.
Common Questions and Problems
This section describes possible situations that might arise and ways to resolve them. The
situations deal with common questions regarding cable, port, and device problems; changing the
boot image; and related issues. It is recommended that you first read the fault messages that
have been logged to the message log.
An Avid system cannot communicate with a JBOD.
This could mean one of three things:
1. The JBOD or Avid system is not connected.
Check that the port LED’s are working for both the Avid system and the JBOD.
2. The remote device link is not active and the port LED is blinking.
A blinking port LED means that the communications link either has not been established
or has ceased communication. Could be a possible configuration problem. Check that
you’ve correctly specified the port type to match the device type.
3. Frames are being rejected from the local device to the remote device (this would be detected
and reported via SNMP, in the Link Status view). In this case, check one of the following:
a) Make sure ports are configured correctly for the proper devices and that the Stealth Route
Table was set up properly.
b) If configured in the stealth mode and a host cannot recognize the storage, reboot the host.
How do I know when the Avid MEDIAswitch is operational (versus running tests)?
When the Avid MEDIAswitch is first powered on, the port LED’s on the front panel are exercised
in different patterns, depending on the POST diagnostic being run. When the tests complete, all
port LED’s are turned
OFF . The port LED’s stay off for approximately 10 seconds and then the
ports begin initialization. As each port successfully initializes the port LED’s come on solid, and
the Avid MEDIAswitch is ready for operation.
As a double-check that a port is working, before you connect the device, try this: If you have a
loopback plug available— for example, an optical loopback plug— plug it into a matching type of
port (optical, in this case). If you do not have a loopback available, connect two like-configured
ports on the Avid MEDIAswitch together. The LED will come
ON to indicate that the port is indeed
working.
When all connecting devices are plugged into their respective ports and are communicating with
the Avid MEDIAswitch, the active port LED’s will be
ON .