how long days f5 can store asm policy audit logs ?

Hi Neeeewbie, 

The ASM audit logs are indeed stored in /var/log, rather than in the database. (When you view the Audit log within ASM, it filters specific messages from /var/log/asm). As such, you're limited to however much space you've got on the /var/log partition and what the retention policy for the /var/log files are. I believe they are kept for 24 days by default (just checked, on my system I indeed have 24 files) but depends on the disk space as well as some other things. See here for more details: 

https://support.f5.com/csp/article/K13367

Hope this helps.