why nfs is so slow?
mksmith at adhost.com
Tue Dec 11 23:50:31 PST 2007
On Dec 11, 2007, at 6:45 PM, Mike Tancsa wrote:
> On Tue, 11 Dec 2007 12:02:07 +0100 (CET), in
> sentex.lists.freebsd.questions you wrote:
>> i'm getting about 6MB/s with NFS (100Mbit cross-connect ethernet),
>> over 9.5 by FTP.
>> nfs is set to work over TCP.
> What mount options are you using ?
> I use something like the following
> 172.18.23.34:/backup/backup2 /offsite-backup nfs
> in fstab
We've had good luck with the following options:
along with the following in /etc/sysctl.conf
And, finally, turning on polling on the interface on our disk array.
We are getting a solid 300 Mb/sec on a GigE link.
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