Help ZFS FreeBSD 8.0 RC2 Write performance issue

Scott Ullrich sullrich at
Fri Nov 13 00:43:54 UTC 2009

On Thu, Nov 12, 2009 at 4:39 PM, Sam Fourman Jr. <sfourman at> wrote:
> if you wouldn't mind posting, what kind of NFS performance can you achieve?
> my application is office Fileserver (the clients are FreeBSD 8
> diskless PXE boot)
> so idk if it is possible to achieve gigabit NFS performance.
> iperf is able to get ~970mbit from a client to the NFS server.
> I realize that disk i/o is the limiting factor so I bought 6x SATA2
> disks and a Areca card

I was getting getting bursts up to 120Megaqbyte a sec but it would
normally write at about 80MB/sec sustained.  With was great for the
boxes configuration.  It's an old Dell 2950.


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