Date: Fri, 18 Feb 2005 09:26:13 +0100 (CET) From: Claus Guttesen <cguttesen@yahoo.dk> To: David Rice <drice@globat.com>, freebsd-performance@freebsd.org Subject: Re: High traffic NFS performance and availability problems Message-ID: <20050218082613.59492.qmail@web26801.mail.ukl.yahoo.com> In-Reply-To: <200502171636.10361.drice@globat.com>
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> We are a web hosting company that runs exclusivly > on FreeBSD. We are having > storage availability and performance problems. All > of our storage is exported > via NFS to the client machines Any suggestions or > advice will be greatly appreciated. > > On the file server side we have: > > Dell PowerEdge 1750's > Dell Perc4 RAID controller > Dell Power Vault 220 storage shelf. > (12) 146GB SCSI drives on one SCSI Bus with a hot > spare (~1.3TB file system) > GigaBit ethernet to the NFS client machines > 1GB RAM > (2) 2.4 GHZ Xenon Processors > FreeBSD 5.2.1 or FreBSD 5.3 > > On the client side we have: > > Dell PowerEdge 1750's > 1GB RAM > (2) 2.4 GHZ Xenon Processors > GigaBit ethernet > 36GB SCSI root disk > FreeBSD 4.9 to FreeBSD 4.11 > > On the network side we have: > Gigabit ethernet > Foundry BigIron and NetIron swithes > Cisco 6509 with Gigabit switch blades > We have done the basic NFS tuning > (ie: Read write size > optimization and kernel tuning) You could try to cvsup to the latest RELENG_5 on client and server. Are you using udp? Try switching to tcp if not, may not apply to 4.x. I have nine webservers which nfs-mounts some TB of files, not incredible fast but works. All webservers are RELENG_5 and nfs-servers are 5.2 current from Feb. 18'th 2004, 5.3 beta 3 and 5.3 from Dec. 8'th. I will upgrade all nfs-servers when RELENG_5_4 is released. Claus
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