We have an NFS server on which a 32-bit kernel of Debian is installed. I want to run an application which works only if the kernel is 64-bit. We have in all about 60-70 PC's, out of which the above mentioned application is run only on 10 nodes. Is it possible to install a seperate operating system for these 10 nodes without breaking any protocol in NFS ?
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From http://www.ietf.org/rfc/rfc1813.txt there is a section on 32/64 bit compatibility issues with version 3 of the NFS protocol (from back in 1995). This is the relevant section for your case with a 32-bit server and 64-bit client, which indicates there should be no problem handling this combination, unlike the issue of 64-bit server and 32-bit client:
4.13 32 bit clients/servers and 64 bit clients/servers
The 64 bit nature of the NFS version 3 protocol introduces
several compatibility problems. The most notable two are mismatched clients and servers, that is, a 32 bit client and a 64 bit server or a 64 bit client and a 32 bit server.The problems of a 64 bit client and a 32 bit server are easy to handle. The client will never encounter a file that it can not handle. If it sends a request to the server that the server can not handle, the server should reject the request with an appropriate error.
The problems of a 32 bit client and a 64 bit server are much
harder to handle...
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