Technical data

Brocade VDX 8770-4 Hardware Reference Manual 55
53-1002563-05
Determining the status of a CID card
4
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 16 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, an
FFDC message is output to the RASlog. Refer to Table 17 for possible messages.
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 16 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.
TABLE 15 Output for show environment fan command (Continued)
Output Explanation
TABLE 17 Messages that may indicate CID card problems
Error message Issue
[EM-1020]...M1, ERROR ... A problem was found on
one or both CID cards (x), please run the CIDrecov
tool to get more information and recovery options.
Some kind of error or mismatch has
been detected in the CID card audit.
[EM-1021], ... M1, INFO, ... A CID card has been
inserted, a CID verification audit will be run to
detect any mismatches or other problems.
A second CID card is enabled and the
CID card audit will be run. If an error
is detected during the audit, an
EM-1020 message is generated.
[EM-1022], ... M1, WARNING, ... A CID card access
problem has been encountered, please run the
CIDrecov tool to get more information and recovery
options.
An error is detected during normal
access to the CID cards; typically, one
of the cards is corrupted or
inaccessible.