I have a very different experience with NFS: we are using Gigabit Ethernet, and a 64bit RHEL6 clone with ECC memory as a file server; it has RAID1 ext4 home directories and RAID6 ext4 for synchrotron data. We have had zero performance or reliability problems with this in a computer lab with ~ 10 workstations, and I have seen 115 MB/sec file transfers via NFS, at peak times.
Just make sure to export using the "async" option.
HTH,
Kay
On Wed, 31 Jul 2013 09:21:48 +0900, Francois Berenger <[log in to unmask]> wrote:
>Be careful that running data intensive jobs over NFS
>is super slow (at least an order of magnitude compared
>to writing things on a local disk).
>Not only the computation is slow, but you may be slowing down
>all other users of the cluster too...
>
>F.
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