Date: Wed, 28 Sep 2005 22:43:07 -0500 From: Eric Anderson <anderson@centtech.com> To: Francisco Reyes <lists@natserv.com> Cc: FreeBSD Performance <freebsd-performance@freebsd.org> Subject: Re: High load average mail server 5.3-RELEASE Message-ID: <433B62CB.2010807@centtech.com> In-Reply-To: <20050928160821.N52985@zoraida.natserv.net> References: <15412.1126634818@www56.gmx.net> <20050922214142.N50836@zoraida.natserv.net> <43336294.2020403@centtech.com> <20050923080227.T58927@zoraida.natserv.net> <4333F3B4.600@centtech.com> <20050928153649.U52985@zoraida.natserv.net> <433AF5B7.8010906@centtech.com> <20050928160821.N52985@zoraida.natserv.net>
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Francisco Reyes wrote: > On Wed, 28 Sep 2005, Eric Anderson wrote: > >> Keep in mind that 5-STABLE, and 6.x (and -CURRENT) have a max of 256 >> nfsd's, so if you want to go higher, you have to modify a line in nfsd.c. > > > So far only a handfull of clients are expected. I am going to start at > 10. :-) > > Other than "killall -9 nfsd" is there any other way to restart nfsd? /etc/rc.d/nfsd restart > On another thread you mentioned the rsize and wsize and that they should > go in the fstab at the client. I got the parameters to work based on a > doc on the web, but was wondering about size. 32K a good parameter for > an IMAP machine? Yes, that should work just fine for you. You may also want to mount the filesystem being shared via NFS on the server with the 'noatime' option. > The setup will be a mail storage server with 3 to 5 machines running > Courier IMAP and connecting to a shared mail folder over NFS. Should be no problem then. So far, I have had great performance with the 5-STABLE branch and 6- branch of FreeBSD for NFS serving. For an IMAP mail store, FreeBSD's near-out-of-box configuration (with the tweaks we've already talked about) should work wonders. Eric -- ------------------------------------------------------------------------ Eric Anderson Sr. Systems Administrator Centaur Technology Anything that works is better than anything that doesn't. ------------------------------------------------------------------------
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