Devin Atencio, Mon, Mar 01, 2004 at 01:58:07PM -0700: > > > I currently have a NAS server running Debian Linux with kernel 2.4.22 > with XFS filesystem. The NAS currently has 1.5 gigs of Memory and is a > Dual Pentium III 1.4 gigahertz machine. I have 4 machines that mount What kind of storage does it have? > this NAS for e-mail/pop services. The mail servers are normally under > very heavy loads and I notice that the load on the NAS skyrockets > causing lots of issues with pop3. I am almost positive it is NFS issues > and am trying to figure out how to better tune the NFS on my NAS so i > have less issues. > > I am using the nfs-kernel-server and I have in my > /etc/defaults/nfs-kernel-server > > # Number of servers to start up RPCNFSDCOUNT=300 > > My /proc/net/rpc/nfsd shows: th 300 6328317 437895.770 181412.220 > 96134.190 58149.750 38388.700 27054.990 20005.880 15421.700 12464.920 > 21369.570 We have seens similar problems before and eventually concluded that it was a disk bandwidth problem rather than an nfs problem. What does the load look like on the nfs server? What does iostat show you? What does the retrans parameter in `nfsstat -c' show on the clients? g
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