Got alert – disk usage 100% on “/”.
root@firepower:/Volume/home/admin# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 3.7G 3.5G 0 100% /
devtmpfs 32G 0 32G 0% /dev
This is a major issue as some configuration changes will not take affect.
Check temp for large files.
root@firepower:/dev# du -a /tmp | sort -n -r | head -n 20
1657688 /tmp
1653324 /tmp/Cisco_Firepower_GEODB_FMC_Update-***.sh.REL.tar
1600 /tmp/SSEData.json
1564 /tmp/devices.json
548 /tmp/sqlite-3.7.2-libsqlitejdbc.so
160 /tmp/casuser_template.log
Deleted file, free space returned to normal, configuration changes started working.
root@firepower:/tmp# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/root 3.7G 1.9G 1.6G 55% /
devtmpfs 32G 0 32G 0% /dev