a question on NFS Post: 302123683

Sponsored Content

Top Forums UNIX for Advanced & Expert Users a question on NFS Post 302123683 by porter on Tuesday 26th of June 2007 05:26:42 PM

06-26-2007

Registered User

In theory yes, as that is the purpose of NFS.

NFS is a standard protocol (even though there are a number of versions of it), the idea is that all machines, no matter how different, use the same information "on-the-wire", so as long as a machine implements NFS, you should not care what type of machine it is.

If there is any translation to be done, that is the foreign machines job, for instance Windows does not have user and group ids like UNIX, so Windows has to emulate them somehow, but how it does that is invisible to the NFS client.

Access time can be a trouble-some one, especially if the machines are not synchronised to a common time source, a good example of this manifesting as a problem is 'make' running more build commands than are actually needed.

Basically, if a machine does not directly implement some feature of NFS then either it must

(a) emulate it
(b) return an error when it is attempted to be used

A good example of (b) is some hosts may not support file region locking.

porter

View Public Profile for porter

Find all posts by porter

9 More Discussions You Might Find Interesting

1. SCO

NFS Question

I am very new to Unix. Is it possible to setup a NFS share on a Sco Unix server that could be accessable by a Windows 2003 server? If so could someone point me in the right direction with either the commands or documentation?

2. Solaris

NFS write error on host : Stale NFS file handle

:confused:Hi all When i see in the /var/adm/messages, i saw the following error unix: NFS write error on host : Stale NFS file handle. unix: (file handle: 45ca415 3e7 a0000 2c7f6 3ebfc25f a0000 2 3e49) It is using sunOS 5.7. Is anybody know what is this error? Is is related to any network...

3. Linux

NFS file handle question

Hello All, I have a small question regarding the NFS file handles. Suppose I have a NFS client who has requested for a particular file from the NFS server.Now lets assume that I am using a NFS v2 server. So I get the filehandle for that file and I can use it. Suppose later I upgrade the server to...

4. HP-UX

SFU/NFS question

I am new in UNIX so pardon me if I am asking this question. We are using SFU in Windows to have a Windows folder mounted over UNIX. While we can see the mount, everytime i cd on the mounted folder (e.g. cd CONFIG) I always get Permission denies error. Does anyone know why I cannot go inside the...

5. Solaris

NFS- share drive question

Ok. Here is the situation, I have server A which need to access /tmp folder of server B. Can I mount NFS share (/tmp) from client (serverA)?please let me know

6. Solaris

NFS question

How do I get directories form remote server " A " mounted to server B? Please provide the necessary steps.

7. Solaris

Quick NFS question

Hello, I have a quick question. How do you know which protocol version of NFS is setup on your Solaris 10 servers? Example 2, 3 or 4

8. UNIX for Dummies Questions & Answers

NFS question when you have a subdirectory that you don't want to be shared?

I have a somewhat interesting problem, we've decided to load balance a java application and as such I'll be running our application on four physical machines as opposed to the single machine it's currently running on. I've centralized the directory that the application requires (including the...

9. Solaris

NFS write error on host xyz: Stale NFS file handle - Solaris 10

Oct 13 12:19:15 xyz nfs: NFS write error on host xyz: Stale NFS file handle. Oct 13 12:19:15 xyz nfs: (file handle: 68000000 1bc5492e 20000000 377c5e 1ce9395c 720a6203 40000000 bdfb0400) Oct 13 12:19:15 xyz nfs: NFS write error on host zyz: Stale NFS file handle. Oct 13 12:19:15 xyz nfs: ...

LEARN ABOUT NETBSD

nfsd

NFSD(8) 						    BSD System Manager's Manual 						   NFSD(8)

NAME

     nfsd -- remote NFS server

SYNOPSIS

     nfsd [-6rut] [-n num_threads]

DESCRIPTION

     nfsd runs on a server machine to service NFS requests from client machines.  At least one nfsd must be running for a machine to operate as a
     server.

     Unless otherwise specified, four servers for UDP transport are started.

     The following options are available:

     -r      Register the NFS service with rpcbind(8) without creating any servers.  This option can be used along with the -u or -t options to
	     re-register NFS if the portmap server is restarted.

     -n      Specifies how many server threads to create.  The default is 4.  A server should run enough threads to handle the maximum level of
	     concurrency from its clients.

     -6      Listen to IPv6 requests as well as IPv4 requests. If IPv6 support is not available, nfsd will silently continue and just use IPv4.

     -t      Serve TCP NFS clients.

     -u      Serve UDP NFS clients.

     For example, ``nfsd -t -u -n 6'' serves UDP and TCP transports using six threads.

     nfsd listens for service requests at the port indicated in the NFS server specification; see Network File System Protocol Specification, RFC
     1094 and NFS: Network File System Version 3 Protocol Specification.

     The nfsd utility exits 0 on success, and >0 if an error occurs.

SEE ALSO

     nfsstat(1), nfssvc(2), mountd(8), rpcbind(8)

HISTORY

     The nfsd utility first appeared in 4.4BSD.

BSD
								  March 17, 2008							       BSD