Tell automount to use NFSv2 on AIX 6.1 Post: 302951598

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Operating Systems AIX Tell automount to use NFSv2 on AIX 6.1 Post 302951598 by MichaelFelt on Friday 7th of August 2015 02:47:47 PM

08-07-2015

Registered User

The easiest way to see if AIX is using NFSv2, versus NFSv3 or NFSv4 is to check the output of nfsstat -rc. The -r is for rpc information, the -c is for client information (-s would be for AIX as a NFS server).

The NFSv3 and NFSv4 rpc info is Connection oriented based. and NFSv2 - being UDP - is Connectionless oriented

Code:

michael@x071:[/home/michael]nfsstat -rc

Client rpc:
Connection oriented
calls      badcalls   badxids    timeouts   newcreds   badverfs   timers     
8132122    1          1          0          0          0          0          
nomem      cantconn   interrupts 
0          0          0          
Connectionless
calls      badcalls   retrans    badxids    timeouts   newcreds   badverfs   
0          0          0          0          0          0          0          
timers     nomem      cantsend   
0          0          0

Another easy way to see is to start NFS. Depending on your level of AIX you will be able to see NFS stats for NFSv2 and NFSv3 only, or perhaps including NFSv4 - screen excerpt for topas

Code:

NFS (calls/sec)
SerV2         0
CliV2         0
SerV3         0
CliV3       201
SerV4         0
CliV4         0

Hope this helps!

MichaelFelt

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nfsd

rpc.nfsd(8)						      System Manager's Manual						       rpc.nfsd(8)

NAME

       rpc.nfsd - NFS server process

SYNOPSIS

       /usr/sbin/rpc.nfsd [-p port] nproc

DESCRIPTION

       The  rpc.nfsd program implements the user level part of the NFS service. The main functionality is handled by the nfsd.o kernel module; the
       user space program merely starts the specified number of kernel threads.

       The rpc.mountd server provides an ancially service needed to satisfy mount requests by NFS clients.

OPTIONS

       -p port
	      specify a diferent port to listen on for NFS requests. By default, rpc.nfsd will listen on port 2049.

       nproc  specify the number of NFS server threads. By default, just one thread is started. However, for optimum performance  several  threads
	      should be used. The actual figure depends on the number of and the work load created by the NFS clients, but a useful starting point
	      is 8 threads. Effects of modifying that number can be checked using the nfsstat(8) program.

SEE ALSO

       rpc.mountd(8), exportfs(8), rpc.rquotad(8), nfsstat(8).

AUTHOR

       Olaf Kirch, Bill Hawes, H. J. Lu, G. Allan Morris III, and a host of others.

								    31 May 1999 						       rpc.nfsd(8)