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4-6 Diagnostics/Troubleshooting
GigWorks MkII-16 Switch Model MKII-BASE16
59003-01 Rev. A Installer's/User's Manual
For example:
• A PROM checksum failure is an example of a fatal error. This indicates that
the PROM firmware is corrupt and the Switch may not run.
• A failure associated with a Fibre Channel port is an example of a non-fatal
error. The Switch can isolate the bad port and operate with the remaining
ports.
When POST is complete and errors are encountered, the Switch uses the
Heartbeat LED to blink an error code which describes the first error encountered.
These error codes are described next in this section. The Switch then reads its
error log and if it has encountered non-fatal errors that affect one or more ports
(but the remaining ports are operable) it will disable the bad ports and blink the
Logged-in LED of the affected port or ports to indicate which ports are down. If
the error is non-fatal but does not affect a single port or group of ports, only the
Heartbeat LED blinks an error code. In all cases, the Switch displays the POST
error indications until you power it down.
For example:
• If the POST encounters a PROM Checksum error the entire Switch is
inoperable. The Heartbeat LED will blink the error code for the fatal PROM
Checksum error. The entire Switch is down and no port Logged-in LEDs
are lit because the problem does not affect an individual port or ports.
• If the POST encounters a Bus error, the Switch may operate in a degraded
mode because it has multiple Buses. It can operate with one or more of
them in operation but some normal processing functions such as in-order
delivery may be adversely affected. The Heartbeat will blink the error code
for the non-fatal Bus error. The Switch may operate (a little slower) and no
port Logged-in LEDs are lit because the problem does not affect an
individual port or ports.
• If the POST encounters an Auto-Connect error, the Switch may operate in a
degraded mode because the Auto-Connect tests the ability of ports to
accomplish an Auto-Connect and ports that pass this test can still operate.
The Heartbeat will blink the error code for the non-fatal Auto-Connect
error. The Switch disables both ports that could not accomplish an Auto-
Connect and blinks their Logged-in LEDs to indicate that these ports are
down.
Note:
Whether the problem is fatal or non-fatal, please contact Ancor Customer
Service. If the problem is non-fatal, it may allow you to run in a degraded
mode until the problem is fixed.
Power-On-Self-Test (POST)