<div>Ralf,</div>
<div> </div>
<div>I could fix similar issue on RHEL 5 by updating following /etc/exports entries,</div>
<div> </div>
<div>/lustremnt *(rw,no_root_squash,async)<br></div>
<div>no_root_squash is important</div>
<div> </div>
<div>Thanks,</div>
<div>Anil<br></div>
<div class="gmail_quote">On Wed, Apr 22, 2009 at 2:35 PM, Ralf Utermann <span dir="ltr"><<a href="mailto:ralf.utermann@physik.uni-augsburg.de">ralf.utermann@physik.uni-augsburg.de</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="PADDING-LEFT: 1ex; MARGIN: 0px 0px 0px 0.8ex; BORDER-LEFT: #ccc 1px solid">Dear list,<br><br>on a Debian etch system, I have NFS-mounted a Lustre<br>filesystem. The mount was possible without error. However,<br>
when I want to access this NFS-mounted Lustre filesystem, I see the<br>following error message on the NFS client system:<br><br># ls -l /alcc/alf1/<br>total 0<br>?--------- ? ? ? ? ? /alcc/alf1/admin<br># ls -ld /alcc/alf1/admin<br>
ls: /alcc/alf1/admin: Input/output error<br><br>each time I access the NFS mounted Lustre system, I see<br>a syslog entry on the client like:<br><br>kernel: nfs_stat_to_errno: bad nfs status return value: 45<br><br>The Lustre client which acts as the NFS server and the Lustre MDT<br>
don't show any error in the logs. On the Lustre client, /alcc/alf1<br>is the mount point for the Lustre filesystem and this is exported<br>with NFS:<br># ls -ld /alcc/alf1/admin<br>drwxr-xr-x 3 root root 4096 2009-03-24 10:38 /alcc/alf1/admin<br>
# exportfs -v -r<br>exporting <a href="http://192.168.2.0/24:/alcc/alf1" target="_blank">192.168.2.0/24:/alcc/alf1</a><br><br>The Lustre client (and servers) are Debian Lenny systems running a<br>vanilla 2.6.22.19 kernel with Lustre 1.6.7(+ the latest critical patch).<br>
All systems have nss access to the same user database, although<br>the example above does not even need this (no root squash on<br>Lustre and NFS).<br><br>Any hints?<br>TIA, Ralf<br>--<br> Ralf Utermann<br>_____________________________________________________________________<br>
Universität Augsburg, Institut für Physik -- EDV-Betreuer<br> Universitätsstr.1<br> D-86135 Augsburg Phone: +49-821-598-3231<br> SMTP: <a href="mailto:Ralf.Utermann@Physik.Uni-Augsburg.DE">Ralf.Utermann@Physik.Uni-Augsburg.DE</a> Fax: -3411<br>
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</blockquote></div><br>