Will there be any differences in functionality of Chimera depending on
whether it uses nfs3 or 4?
Greig
On Mon, 2 Oct 2006 [log in to unmask] wrote:
> On Mon, 2 Oct 2006 13:26:34 +0100
> Greig A Cowan <[log in to unmask]> wrote:
>
> > > > For information, the new PNFS will use nfs4. Not sure when this will be
> > > > out though...
> > >
> > > Does this means that RHEL3 will not be supported any more? AFAIK nfs4
> > > is not supported under 2.4 kernels.
> >
> > Sorry, I made a typo. It will use nfs3, which will remove the filesize
> > limitation. This is supported under 2.4 kernels, AFAIK.
> >
> > Greig
>
>
> Actually you where correct both times Greig, Chimera, will be NFS3 and NFS4.
>
> Regards
>
> Owen
> >
> > >
> > > > > On a similar note I noticed that a du /pnfs only reports half the
> > > > > space used by dcache in the file system (we seem to have lost ~3T)
> > > > > no idea yet if it's because we have too many files above 2G or if
> > > > > dcache managed to forget about some files (half of them?!) which
> > > > > has happened before. Has anyone else checked if what pnfs reports
> > > > > is the same as what the filesystem usage in the pools is?
> > > >
> > > > You could check that all the PNFSids in the filesystem have corresponding
> > > > entries in the namespace. You would have to run the pathfinder tool from
> > > > within /pnfs on a list of PNFSids from the filesystem. Any files not in
> > > > the namespace should return a file not found error. Alternatively, you can
> > > > log into the admin interface ;) , connect to each of the pools and then
> > > > run the 'pnfs register' command. This should make sure that all files in
> > > > the filesystem get an entry in the namespace.
> > >
> > > I'll have a look.
> > >
> > > Kostas
> > >
> >
> > --
> > ========================================================================
> > Dr Greig A Cowan http://www.ph.ed.ac.uk/~gcowan1
> > School of Physics, University of Edinburgh, James Clerk Maxwell Building
> >
> > TIER-2 STORAGE SUPPORT PAGES: http://wiki.gridpp.ac.uk/wiki/Grid_Storage
> > ========================================================================
>
--
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Dr Greig A Cowan http://www.ph.ed.ac.uk/~gcowan1
School of Physics, University of Edinburgh, James Clerk Maxwell Building
TIER-2 STORAGE SUPPORT PAGES: http://wiki.gridpp.ac.uk/wiki/Grid_Storage
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