Re: [CentOS] unable to write files bigger than 4GB over NFS

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Tony Schreiner wrote:

This may not be a CentOS problem, because I'm in a mixed environment. But I put it out in case anybody has any thoughts.

I recently replaced a file server, which was on a Pentium III based system running 32-bit CentOS 4.3, with an Opteron based system running Fedora 4. The NFS clients are all CentOS 4.3, some are 32 bit and some are 64 bit.

Since the replacement, when I try to write a big file from the 32bit CentOS boxes over NFS to the server, I get "filesize exceed messages" at 2GB. However this used to work with the old server. And I can write big files if I'm logged on to the server.

I belive that the maximum file size for an NFS partition is 2G, so I am surprised that you didn't see the problem before replacing the server. I got round this problem by using ssh, but this probably isn't going to be of use if you need to use the files frequently.

One more oddity, the shared file system on the server is xfs formatted; if I instead mount a reiserfs file system I can successfully write. This part does not make sense to me.

Maybe the limit doesn't come from just NFS but a combination of NFS and the filesystem.
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