Determining the status of a cid card, Table 16, Table 17 – Brocade VDX 8770-4 Hardware Reference Manual User Manual
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Brocade VDX 8770-4 Hardware Reference Manual
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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.
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 
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.
