Mount MapR Directories for HP Vertica

About this task

On every node that will be running HP Vertica:

As the root user, create a Linux mount point for the HP Vertica volumes, as shown in the example below:
```
mkdir /vertica 
chown dbadmin:verticadba /vertica
```
As the MapR administrative user, add the mount specification to mapr_fstab on each node. Adding this specification automatically mounts the node specific directory for the HP Vertica volumes when you start the MapR NFS gateway:
```
echo localhost:/mapr/<clustername>/vertica/$(hostname -f) /vertica nolock,hard >> /opt/mapr/conf/mapr_fstab 
```
WARNING: If it is not changed at configuration time, the default MapR cluster name is my.cluster.com. You can determine the MapR cluster name using the maprcli command:
```
maprcli dashboard info -json | grep name
```
As the root user, mount the new HP Vertica volumes specified in mapr_fstab.
```
mount localhost:/mapr/<clustername>/vertica/$(hostname -f) /vertica
```
As the root user, confirm successful mounting on every node. You will see a /vertica mount specific for the server on which this command is run:
```
mount | grep mapr
```
NOTE: Do not continue with creation of the HP Vertica database unless these directories exist.