Limit NFS block size from server side?

Posted by paulw1128 on Super User See other posts from Super User or by paulw1128
Published on 2012-04-12T22:18:23Z Indexed on 2012/04/12 23:33 UTC
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Is it possible to enforce a maximum rsize/wsize in nfsd? I'm having issues related to IP fragmentation (yes, I'm stuck with NFS-over-UDP, contrary to the warnings in the manpage), and have no practical access to the client mount command (buried in one of many TFTP boot images).

http://nfs.sourceforge.net/nfs-howto/ar01s05.html lists a kernel source parameter limiting the maximum block size, but I'm not gong to get away with recompiling the nfsd kernel module so that's not really an option either :-(

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