NFS Server Configuration for Aix 6.1

What Is NFS: Port Number 2049

Network File System is A distributed file System that allows users to access files and directories of remote server as were Local.

NFS is independent of machine type, Operating Systems

NFS Services:

Server -> Computer that makes filesystem, directories and other resource available for remote access.
Clients:
The Computer or there process uses server resources.
Export:
The act of file system available to remote clients.
Mount:
The Act of file system access file system that server export.

Mount:

Mountd daemon:
The mounts daemon is a remote procedure call that answers a client request to mount a file system
Mountd daemons find out which file system available by reading /etc/xtab file.

Client you need to mount command.

Remote File Access:

Nfsd Daemon on the Server
Biod daemon on the Client

When user want to read write files in server biod daemon send request to server nfsd daemon it will provide access.

Boot Parameter:

Provide parameter for Sun os diskless clients from rpc.bootparamd on the server.

PCAuthentication:

Provides user authentication service for pc-NFS rpc.pcnfsd daemon on the server.

Start Nfs Daemon:
Command:
Smit mknfs
Or
Mknfs –N

-b –l options add entry to inittab file it will start automatically system restart.

Start Nfs Daemon:

Startsrc –s nfsd

Start all Nfs Daemon:

Startsrc –g nfs

Exporting NFS Directories:

Verify nfs service is running or not
Lssrc –g nfs

Smitty mknfsexp
Smitty chnfsexp

Add the Path and security style and other things
It will add the line to VI /etc/exports file
/home

Then you need to enter command
Exportfs –a it will pass the command to kernel.

Verify the File system Exported Properly

Showmount –e hostname or IP address

Export Nfs Directory Temporarily

Exportfs –i /tmpdirectory


UnExporting NFS Directory:

Smitty rmnfsexp

Remove path name

Remove the line in vi /etc/exports and save it.

Exportfs –u /dirname.

Mounting NFS Directory:

Vi /etc/filesystems

/home
Dev = “/home”
Vfs = nfs
Nodename = bgaix01
Mount = true
Options = bg,soft,intr
Account = false/

Start the all the NFs service

Rc.nfs

Mount Nfs Home Directory:

Smitty mknfsmnt

List of NFS Commands:

Chnfs
Mknfs
Nfso
Automount
Chnfsexp
Chnfsmnt
Exportfs
Lsnfsexp
Lsnfsmnt
Mknfsexp
Mknfsmnt
Rmnfs
Rmnfsexp
Rmnfsmnt


Rpc.lockd -> Process Lock request through rpc package.

Rpc.statd -> Provide crash and recovery functions

Biod -> answer request from server to client

Rpc.mountd -> answer the request from client mounts

Nfsstat -> Display information ability to receive calls.

Portmap -> map program number to internet number

Rpcinfo -> Report the status of rpc servers

Rpc.statd ->