How to export and mount the nfs filesystem in aix?

How to export and mount the nfs filesystem in aix?

1. Ground work:

We need the below information in hand and confirm the required deamon status.

            ü  Nfs Server name

            ü  Exported directory

            ü  Nfs Client name

            ü  Nfs local mount point name.

            ü  check showmount -e  --> To confirm the exported directory list.

            ü  showmount -a  --> To confirm the list of nfs client server names.

Server Side Configuration: Start the NFS and portmap daemon

# lslpp –L | grep bos.net*  --> Check the nfs server and client installed.

# startsrc –g nfs  --> start the nfs group deamon

# startsrc -s nfsd   --> start the nfsd deamon

# startsrc -s mountd  --> start the mountd deamon

# lssrc -g nfs  --> check the nfs group deamon in active state

# lssrc -s  nfsd  --> Check the nfsd deamon

# lssrc -s mountd  --> check the mountd deamon

•   Client Side Configuration:      Start the NFS and portmap daemon

# lslpp –L | grep bos.net*  --> Check the nfs server and client installed

# startsrc –g nfs   --> start the nfs group deamon

# startsrc –s portmap  --> start the portmap deamon.

# lssrc -s nfsd  --> check the nfs group deamon in active state

# lssrc -s portmap  --> Check the protmap deamon in active state.

# lssrc -s biod   --> Check the biod deamon in active state.

2. Exporting an NFS filesystem

Using Smitty:

# ls -l /etc/exports  --> Check exports file exits.

# cp -p /etc/exports /etc/exports_bak   --> Take the backup of the exports file.

# smitty mknfsexp  --> Exporting the nfs filesystem.

            Specify appropriate values in the PATHNAME of directory to export

             MODE to export directory,

            EXPORT directory now, system restart or both fields.

# cat /etc/exports  --> To confirm the exported directory are present on the /etc/exports.

Using Command line:

# cp -p /etc/exports /etc/exports_bak   --> Take the backup of the exports file.

# vi /etc/exports  --> To Create an entry for each directory to be exported, using the full path name of the directory.

# exportfs -a  --> To read the /etc/exports file and exports all the directories listed.

# showmount -e  --> To confirm the exported directory listed.

# showmount -a  --> To confirm the nfs client name and directory list.

3. Mounting the NFS filesystem on the client.

Using Smitty:

# showmount -e <server_name>  --> To verify the NFS server has exported the directory.

# mkdir /local_directory    --> To create the mounting directory if not already exist.

#  smitty mknfsmnt  --> mount the NFS filesystem.

            PATHNAME of mount point.

            PATHNAME of remote directory.

            HOST where remote directory resides.

            MOUNT now, add entry to /etc/filesystems or both?

            /etc/filesystems entry will mount the directory on system RESTART.

            MODE for this NFS file system.

 #df -gt <NFS mount_name>  --> To confirm the nfs filesystem has been mounted

Using Command line:

# showmount -e <server_name>  --> To verify the NFS server has exported the directory.

# mkdir /local_directory    --> To create the mounting directory if not already exist.

# mount ServerName:/remote/directory /local/directory 

 #df -gt <NFS mount_name>  --> To confirm the nfs filesystem has been mounted

4. Roll back

Unexporting the NFS filesystem on the NFS server

Using Smitty:

Login to the NFS server and follw the below procedure.

# cp -p /etc/exports  --> To copy the exports directory.

# smitty rmnfsexp  --> To unexport the nfs directory.

Using command line:

# vi /etc/exports --> To Find the entry for the directory you wish to unexport, and the delete that line.

# cat /etc/exports   --> To check the directory now is removed and unexported.

If NFS is current running,

#exportfs -u <directory_name  --> where dirname is the full path name of the directory you just deleted from the /etc/exports file.

Removing the NFS mount on the NFS client server.

Using Smitty:

#smitty rmnfsmnt

# cat /etc/filesystems  --> To confirm the entry has been deleted properly.

Using command line:

#umount <directoryname>   --> To unmount the directory.

# cp -p /etc/filesystems /etc/filesystems_bak   --> To take the backup of the /etc/filesytems file.

# vi /etc/filesystems  --> Find the entry for the directory you just unmounted, and then delete it.

# cat /etc/filesystems  --> To confirm the entry for the directory you just unmounted properly.

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