Home > Storage > PowerScale (Isilon) > Product Documentation > Protocols > PowerScale OneFS NFS Design Considerations and Best Practices > Mount export over NFSv3/NFSv4.0/NFSv4.1/NFSv4.2
NFS v3/v4 are supported on Linux 2.6 kernels and later. In this white paper, we use Centos 6.9 as NFS client to illustrate the client side configuration.
NFS exports are mounted on the client using the mount command. The format of the command shown as below:
# mount -t nfs -o options server:/remote/export /local/directory
When you mount an NFS export, the NFS protocol version is determined at mount time, and can be modified by specifying the version of the NFS protocol using mount options nfsvers or vers. For example, the command mount -t nfs -o nfsvers=4.1 server:/remote/export /local/directory mounts the export with NFSv4.1.
The drawback of using mount command is that the mounted NFS export is not persistent across client reboots. So you can use /etc/fstab and autofs to mount the NFS file system. For more details about mount, /etc/fstab and autofs, refer to Red Hat Storage Administration Guide. More mount options and considerations are discussed in section NFS client considerations.
Note: mount options nfsvers and vers have the same meaning in the mount command. The option vers is compatible with NFS implementations on Solaris and other vendors.