F5 BIG-IP configuration backup

Potentially, a directory structure is full.

Experienced the same symptoms when attempting to create an archive (backup) file. In our situation...

Issue: df showed that /shared was 100% used.

Cause: mcpd.out file was 55 GB

Root Cause: DISA STIGs suggest setting the mcpd logging level to debug.

Side Note: Many IA folks believe that the security technical implementation guides are not guidelines but hard requirements. Representatives from both DISA and FSS stated that STIGs are suggestions and are not requirements.

Temporary Solution: transferred Traffic Groups to alternate F5, then rebooted the F5 experiencing the problem. Note that I've previously tried other methods of resetting the mdpd.out file, only to have each require a reboot.

Long-term solution: Option A) create a cron job to perform log rotation function; Option B) revert to default logging level of mcpd

Please share if you've found differing (and preferably better) permanent solution.