Mount NAS

Available in VPC

You can add a large-scale NAS storage to Cloud Hadoop cluster nodes.
For more information about NAS, see the NAS user guide.

To mount NAS on the cluster server:

1. Create NAS volume

To create a NAS Volume:

From the NAVER Cloud Platform console's VPC environment, navigate to > Services > Storage > NAS > Volume.
Click the [Create NAS Volume].
Set the NAS Volume creation information and complete NAS Volume creation.
- For more information on creating a NAS Volume, see Create NAS Volume.
- You can set ACL (Network Access Control) during the NFS access control configuration step when creating a NAS Volume.

2. Register NAS Volume ACL

Before mounting a NAS Volume, you must first add ACL settings for the relevant cluster.
ACL can be set when creating a NAS Volume or through the NFS access control menu in the console after creating the NAS.

When creating a NAS Volume
Select a cluster server during the NFS access control configuration step and move it with the < > buttons to complete ACL (Network Access Control) setup. See 1. Create NAS Volume.
If you already have a NAS Volume
To set up ACL if the NAS Volume has already been created:

From the NAVER Cloud Platform console's VPC environment, navigate to > Services > Storage > NAS > Volume.
From the NAS Volume list, select the NAS Volume for which you want to set ACL, then click [Volume settings].
Click NFS access control.
In the settings popup, select the cluster server, move it with the < > buttons, and then click [OK].

3. Mount NAS

This guide applies to the basic environment of Cloud Hadoop. (CentOS 7.x or higher)
For more information about NAS, see the NAS user guide.

After launching PuTTY, use SSH to access the cluster server where you want to mount the NAS. (See the Connect cluster nodes via SSH guide.)
Enter the sudo su - command to convert to the root account.

$ sudo su -

Refer to the following example to install NFS-related packages, run the RPC daemon, and create a mount point.
```
$ yum -y install nfs-utils
$ systemctl start rpcbind.service
$ mkdir /mnt/nfs_dir
```
- yum -y install nfs-utils: Installs NFS-related packages (basic).
- systemctl start rpcbind.service: Runs the RPC daemon.
- mkdir /mnt/nfs_dir: Creates a mount point (directory) called /mnt/nfs_dir using the mkdir command.

Mount using the volume name received from the NAS console and the mount point created.

$ mount -t nfs {Mount info} {Mount point}
$ mount -t nfs 10.250.53.85:/n2536315_test /mnt/nfs_dir

Use the df command to check that the NAS has been mounted correctly.
```
$ df
```

Note

To automatically mount the NAS when the server boots, add the volume information to /etc/fstab.