I inherited a Novell DNS / DHCP setup on NetWare 5.1. We recently have
abends on the server that is an authorized server for zone transfer.

I am thinking perhaps the abends are due to the zone transfers as other
DNS servers in the company are fine.

I noticed of one the zones had a 0 ttl value which I assume could put a
load on the server since it cannot cache anything. I see I have all
kinds of values on many zones.

What happens if a Master server is down when we try to do a transfer?
What are normal internal values?