Installing NFS for the HPE Ezmeral Data Fabric

Describes how to install the NFS service on a node.

The following sections describe how to install the NFSv3 server, NFSv4 server, and the NFS client.

Parent topic: Direct Access NFS™

Installing the NFSv3 Server

Install the NFSv3 server package.
To install, run the following command:
Red Hat or CentOS 
yum install mapr-nfs
Ubuntu 
apt-get install mapr-nfs
SUSE 
zypper install mapr-nfs
If the NFS server is installed without fileserver on a node, the node will be placed in the /nfsserver topology. If the fileserver is installed at a later time, the node will be moved to the /data topology, which is the default for fileserver nodes.

Installing the NFSv4 Server

The NFSv4 server can only be installed on data-fabric 6.1 or later clusters. Both NFSv4 and NFSv3 servers cannot run on the same node. If you have the NFS client running on an edge node, you can use that client to connect to the data-fabric NFS server on clusters running either 5.2, where NFSv3 server can be installed, or 6.1, where NFSv4 or NFSv3 can be installed.

  1. Download, if necessary, and install the nfs-utils package, if it is already not installed, on the host where you plan to install the NFSv4 server.
  2. Modify the /etc/yum.repos.d/mapr_ecosystem.repo file on CentOS/Suse or /etc/apt/sources.list file on Ubuntu to add the following:
    • CentOS: 
      [mapr-dev-ecosystem]
name=mapr-dev-ecosystem
baseurl=http://artifactory.devops.lab/artifactory/eco-rpm/releases/opensource/redhat
enabled=1
gpgcheck=0
    • Ubuntu: 
      deb http://artifactory.devops.lab/artifactory/eco-deb binary trusty 
#opensource.repo
  3. Ensure that rpc.statd is running on the node.
    To verify, run the following command: 
    ps -ef| grep rpc.st
    rpcuser 18889 1 0 01:04 ? 00:00:00 /sbin/rpc.statd
    root 27016 6933 0 01:25 pts/0 00:00:00 grep color=auto rpc.st
    If it is already not running, execute the following to start it: 
    /sbin/rpc.statd
  4. Install NFSv4 server package.
    To install, run the following command:
    Red Hat or CentOS 
    yum install mapr-nfs4server
    Ubuntu 
    apt-get install mapr-nfs4server
    SUSE 
    zypper install mapr-nfs4server
    The mapr-nfsganesha package is also installed as a dependency package. If NFS server is installed without fileserver on a node, the node is in /nfsserver topology. If fileserver is installed at a later time, the node is moved to /data topology, which is the default for fileserver nodes.
  5. Run configure.sh utility with the -u and -g options to configure the services to run under user mapr and the group of the mapr user.
    Important: This step is required only if you are configuring NFSv4 server to work with Kerberos.

Installing the NFS Client

To install the NFS client, run the following command:
Red Hat or CentOS 
sudo yum install nfs-utils
Ubuntu 
sudo apt-get install nfs-common
SUSE 
sudo zypper install nfs-client
Note: NFSv3 clients cannot connect to the NFSv4 server because the NFSv4 server only supports v4 protocol.

Mounting NFS on the Data Fabric Filesystem on a Cluster Node

Refer to Accessing Data with NFS v4 and Mounting NFS for the HPE Ezmeral Data Fabric to filesystem on a Cluster Node for steps to mount NFS to a data-fabric filesystem.