Brocade Communications Systems Brocade VDX 8770-4 - Manual (Page 65)

Brocade VDX 8770-4 Hardware Reference Manual 45
53-1002563-02
Determining the status of a CID card
4
FIGURE 10 F an module
For absent or faulty indications, contact the Brocade VDX 8770-4 supplier to order replacement
parts. You may also want to do this if the indication is below minimum or above maximum.
Table 15 describes the LED patterns for the fan.
Determining the status of a CID card
Each CID card has two serial EEPROMS (seeproms). One is the critical seeprom and the other is the
non-critical seeprom. Problems with the critical seeprom cannot be fixed with the CID Recovery
Tool. Only issues with the non-critical seeprom can be addressed.
Regular validation tests are run by the system comparing the CID cards to each other. If the
information is identical, then the chassis is operating correctly. Once a mismatch is detected, a
FFDC message is output to the raslog. See
Table 16 below for possible messages.
1 Power LED 2 Fault LED
TABLE 14 Output for show environment fan command
Output Explanation
OK Fan is functioning correctly at the
displayed speed (RPM).
absent Fan is not present. Could also mean that
the fan is improperly seated.
below minimum Fan is present but rotating too slowly or
stopped.
above maximum Fan is rotating too quickly.
unknown Unknown fan unit installed.
faulty Fan has exceeded hardware tolerance
and has stopped. In this case, the last
known fan speed is displayed. Could also
mean that the fan is improperly seated.
TABLE 15 Fan LED descriptions
LED purpose Color Status Recommended action
OK No light
(LED is off) Fan does not have power. Ensure that the fan is firmly
seated and has power.
Steady green Fan has power. No action required.
Fault No light
(LED is off) Fan is either healthy or
does not have power. Ensure that the fan has power.
Steady amber Fan has a failure (full or
partial). Replace the fan.