File size limitation in NFS

File size limitation in NFS

[Jim Deas]

I am using a stock 2.4.18 kernel (Redhat 8.0)and using NFS to
share media files. These file can be 2+gig in size.
I have a problem with a 5.2G video file. 
Using fopen64(filename,"rb"):
I can open the file on the local drive but over the NFS share
the fopen64 fails.
Smaller files do work both nfs and local.
The ls command reports the proper files sizes from the nfs share (even
the 5.2G file).
Where should I start looking? Can I assume the problem is
in nfsd and nfs or is this a deeper problem in the vfs.

Regards,
J. Deas

Re: File size limitation in NFS

[H. Peter Anvin]

Followup to:  <1048092610.9649.11.camel@archiveLinux>
By author:    Jim Deas <jdeas@jadsystems.com>
In newsgroup: linux.dev.fs.devel
> 
> I am using a stock 2.4.18 kernel (Redhat 8.0)and using NFS to share
> media files. These file can be 2+gig in size.  I have a problem with
> a 5.2G video file.  Using fopen64(filename,"rb"): I can open the
> file on the local drive but over the NFS share the fopen64 fails.
> Smaller files do work both nfs and local.  The ls command reports
> the proper files sizes from the nfs share (even the 5.2G file).
> Where should I start looking? Can I assume the problem is in nfsd
> and nfs or is this a deeper problem in the vfs.
> 

Check to make sure you're using NFSv3 and that both the client and
server support large files.

	-hpa
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