Cisco 10008 Installation And Configuration Manual page 37

OBFL records operating temperatures, hardware uptime, interrupts and any other important events that
assist board diagnosis in case of hardware failures.
For more information on the feature, see the Onboard Failure Logging feature guide located at the
following URL:
http://www.cisco.com/univercd/cc/td/doc/product/software/ios122sx/newft/122sxh33/
sxhobfl.htm#wp1053048
Logging details for OBFL
The logging details for the OBFL feature are described below:
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Storing OBFL Data
The RP logs are recorded in the bootflash, where other system images, configuration information and
crash dumps are stored. OBFL logs are identified by the extension (*_hist or *_cont). The maximum
memory used on the flash disk for OBFL storage is 2 MB.
Note OBFL log files must not be modified, overwritten or deleted from the bootflash, as this information is
used for failure analysis.
The dir bootflash command displays a list of log files (including OBFL logs). Given below is a sample
output of the additional filenames in use by OBFL.
Router# dir bootflash:
Directory of bootflash:/
4 -rw- 202752 Jan 4 2008 16:13:10 -05:00 env_cont
5 -rw- 69120 Jan 4 2008 16:13:12 -05:00 temp_hist
13 -rw- 69120 Jan 4 2008 16:13:12 -05:00 volt_hist
14 -rw- 33792 Jan 4 2008 16:13:12 -05:00 uptime_cont
15 -rw- 201216 Jan 4 2008 16:13:18 -05:00 errmsg_cont
16 -rw- 67584 Jan 4 2008 16:13:16 -05:00 env_hist
17 -rw- 135168 Jan 4 2008 16:13:18 -05:00 temp_cont
18 -rw- 135168 Jan 4 2008 20:17:28 -05:00 volt_cont
19 -rw- 6144 Jan 4 2008 16:13:14 -05:00 uptime_exthist
20 -rw- 4096 Jan 4 2008 16:13:16 -05:00 uptime_hist
OL-13840-01
OBFL is enabled by default. You need to enable the feature if it has been disabled previously.
On the Route Processor (RP), logging begins after the system starts up.
On the jacket card, logging begins two minutes after the card Online Insertion and Removal (OIR).
This delay allows the Shared Port Adapters (SPAs) to complete initialization.
OBFL updates RP and jacket card temperatures and voltage sensors every five minutes.
Temperature and voltage data is stored only when it is different from the last stored record.
The maximum logging time is two hours, hence, a new record is stored every two hours, regardless
of data variation.
Logs are organized as current (continuous) and historical (summarized) data records.
OBFL logging has no impact on performance.
Cisco 10008 Router PRE4 Installation and Configuration Guide
Onboard Failure Logging
37