Date: Wed, 2 Aug 2006 14:09:15 +0100 From: Freminlins <freminlins@gmail.com> To: "N. Harrington" <drumslayer2@yahoo.com> Cc: freebsd-questions@freebsd.org Subject: Re: Need Advice for Tuning NFS to place nice with a Netapp Message-ID: <eeef1a4c0608020609g43132c76t718ff64f8ae9ab69@mail.gmail.com> In-Reply-To: <20060802030507.82549.qmail@web34510.mail.mud.yahoo.com> References: <20060802030507.82549.qmail@web34510.mail.mud.yahoo.com>
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Nicole, On 02/08/06, N. Harrington <drumslayer2@yahoo.com> wrote: > > Hi > I have several web servers that are attached to a > Netapp (network appliance) unit via NFS-3. A few > servers are 5.5 and a few are 6.1 for comparison > testing. All seem to have lousy performance. We have a similar setup and it runs smoothly. Can you define "lousy performance" ? Can you give more details on your network? Are you using Gig ethernet? And over what medium? Can you also try just copying a 100MB file from the filer to one of the web servers and record the time? Are you running nfsiod? When > going through the issues with Netapp, the reasons > given were that we have too many GettAdr/Lookup > requests compared to actual reads. So all the NFS IOPS > are being used up by these requests. As soon as the > webservers get busy, requests pile up. > > I have tried everything I can think of. The web > servers are even mounted read only with no help. > > My current mount options are: > filer:/vol/fvol31 /home/13/13 nfs > ro,noatime,-r=32768,-T,-b,-R0,-i,-D2,-L 0 0 Mounting noatime for web servers is a good idea but... your "noatime" option has no effect on NFS mounts (check out the mount man page). You need "vol options no_atime_update" on the NetApp. Any advice for sysctl tunes or anything else would be > much appreciatted! > > Thanks > > Nicole > One last thing - are you female?! In a UNIX newsgroup?! Frem.
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