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Brocade BigIron RX Series Hardware Installation Guide 103
53-1002483-03
Monitoring the status of an I2C failure on a management module
5
If the GIEI severity changes from the time the GIEI set to major, then the first syslog message in the
static section of the log is updated to reflect this. A copy of the updated first syslog message is also
generated in the dynamic section of the log. A copy is sent to SNMP log server.
When an I2C failure is first detected, a second syslog message is generated containing information
about the last successful I2C access by the management module before the GIEI error flag was
set.The information of the last good I2C access remains unchanged until the GIEI is cleared. A copy
of the second syslog is sent to the SNMP log server.
The second Syslog message is always displayed as an informational syslog. The following example
displays an informational syslog message:
When the GIEI flag is cleared, the first syslog message in the static section of the log is updated to
show the GIEI is set to clear. The second syslog message in static section is removed. A copy of the
updated first syslog message is also generated in the dynamic section of the log, and in SNMP log
server.
When a problematic device is removed from the system, the GIEI is cleared and all syslog
messages are updated to show the GIEI is set to clear.
If an I2C failure has not occurred on a management module accessing a device, then there will be
no I2C messages in the static log, dynamic log, or SNMP log server. The following example displays
an output from the show logging command when there is no I2C failure accessing a device:
BigIron RX#show logging
Syslog logging: enabled (0 messages dropped, 0 flushes, 1 overruns)
Buffer logging: level ACDMEINW, 50 messages logged
level code: A=alert C=critical D=debugging M=emergency E=error
I=informational N=notification W=warning
Static Log Buffer:
Apr 16 18:21:25:A:System: Power Supply 2 , middle, Not Installed
(FAILED)
Apr 16 18:21:25:A:System: Power Supply 3 , top, Not Installed (FAILED)
Apr 16 18:22:12:I:System: i2c recovered (GIEI = clear), Severity Minor,
Mux index 0, Mux tap 4, ID 0x4, Addr 0x5, (FANTRAY4)
Dynamic Log Buffer (50 lines):
Apr 16 18:22:12:I:System: i2c recovered (GIEI = clear), Severity Minor,
Mux index 0, Mux tap 4, ID 0x4, Addr 0x5, (FANTRAY4)
Apr 16 18:21:27:I:System: bad i2c access (GIEI = set), Severity Minor,
Mux index 0, Mux tap 4, ID 0x4, Addr 0x5, (FANTRAY4)
Apr 16 18:21:25:A:System: bad i2c access (GIEI = set), Severity Major,
Mux index 0, Mux tap 4, ID 0x4, Addr 0x5, (FANTRAY4)
Apr 16 18:21:24:I:System: last good i2c access, Mux index 0, Mux tap 1,
ID 0x9, Addr 0x1, (SNM1TEMP)