F5 terminal - help to run commands - disk space full

1. first of all run df -h in BASH mode not in TMSH mode
2. Install WINSCP and connect to your BIG IP Mgmt IP and then you can browse the filesystem like in Windows. Once connected you can browse to any directory like in windows GUI explored and then you can select to delete any log file of your choice. make sure take a Backup before .

I usually run the following commands for backup:

for collecting all the logs

tar zcvf /var/tmp/${HOSTNAME}_$(date +%Y-%m-%d-%H-%M-%S)_Pre_Change_Number_ALL_LOGS.tar.gz /var/log/*

For UCS backup

tmsh save sys ucs $(echo $HOSTNAME | cut -d'.' -f1)-$(date +%Y-%m-%d-%H-%M-%S)_Pre_Change_Number_UCS

For generating QKView

qkview -s0 -f "/var/tmp/$(/bin/hostname)_$(date +%Y-%m-%d-%H-%M-%S)_Pre_Change_Number_QKVIEW.tgz"