NFS - FreeBSD5 UFS2 serving FreeBSD4 UFS clients

[Konrad Heuer]

On Tue, 7 Dec 2004, Jamie Heckford wrote:

> We currently have a nice beefy fBSD4 box for our main NFS server with
> approx 10 fBSD4 clients.
>
> We will be upgrading the NFS server soon but I can't seem to find any
> info on NFS compatibiltiy between 5.x and 4.x.
>
> Logic tells me that if my NFS server is running 5.x with a UFS2
> filesystem that my 4.x UFS clients won't be able to mount a share from
> the 5.x box.
>
> Or does the NFS layer allow this? Will my 5.x box be backwards
> compatible for 4.x boxen and still work?

Yes, NFS hides details of the underlying file system. Thus, it is totally
os independent (not concerning performance, but concerning compatibility.)

Regards

Konrad Heuer
GWDG, Am Fassberg, 37077 Goettingen, Germany, kheuer2 at gwdg.de