Firewall Logging question?

["Albert R. Campa" <abcampa () gmail com>]

Hi,

I am wondering what your opinion is on Firewall logging for
"Accept/Permit/Allow" rules?

Is it really necessary? Are just the "deny" logs critical?
Say disk space is not in abundance.

Should you not log "accept/permit/allow" firewall rules, or log
everything and have your retention reduced?

What are advantages to logging "accept/permit/allow" rules in a firewall?

Thank in advance.

Albert