On Mon, 2012-02-06 at 23:09 -0800, sasa sasa wrote: > Hi, > I got a server with 16GB memory, want to install 2 BIND on CentOS, one cache > only and another authoritative. > Is it better to install 2 OS virtually and run BIND in them or run 2 > instances of BIND on the same OS? I mean what is the best practice to take > advantage of the hardware resources without risking having single DNS with > cache and authoritative? > > regards, > Sasa
How many CPU cores do you have? I've been running Debian with BIND (some with multiple views) on Xen for a few years now. Each box has five virtual servers, some of them running >1,000 lookups/second with plenty of CPU overhead. The boxes are dual hex-core AMDs with 32GB RAM. The individual virtual servers are running 2 cores each. The boxes have up times of over 600 days with no issues. I'm not suggesting this is what you should do, but rather showing it has been a very successful and cost effective solution for me. You should evaluate the expected DNS load and test accordingly. I tested my servers with several times our current load before deployment. Steve. BIND Rocks. > _______________________________________________ > Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe > from this list > > bind-users mailing list > bind-users@lists.isc.org > https://lists.isc.org/mailman/listinfo/bind-users _______________________________________________ Please visit https://lists.isc.org/mailman/listinfo/bind-users to unsubscribe from this list bind-users mailing list bind-users@lists.isc.org https://lists.isc.org/mailman/listinfo/bind-users