Networks

shouldn't show a big resource hit with DNS client services because it's cache DNS entries stored on the member server. So, that's a good thing because but turning it off will result in the member server having to send queries to upstream DNS servers rather than using cache. Then you'll see a larger amount of traffic going to the DNS server. Openview will then report tha the DNS server is receive larger than baseline [if you've established one] performance hits due to the increased traffic on the network and increased traffic to the DNS server.