NFS Setup

Video Guideline

NFS is a distributed file system protocol that allows systems to share directories and files over a network. NFS works in a client-server model, where the server exports directories, and clients mount them to access them.

The Role of NFS in CloudStack

1. Primary Storage

• Stores the virtual disk (volume) of the VM.

• Used for:

  • VM root disk storage (/dev/vda)

  • Additional disk data (/dev/vdb, etc.)

• Must be high-performance as it affects the speed of the VM.

2. Secondary Storage

• Save:

  • OS templates (e.g. Debian, Ubuntu, CentOS)

  • ISO images (for VM installation)

  • Snapshots (backup of VM state)

• Doesn't need to be as fast as primary storage, but should have a large capacity.

Detailed steps

1. NFS Package Installation:

sudo apt install nfs-kernel-server

2. Directory Preparation

Create directories for primary and secondary storage:

sudo mkdir -p /export/primary
sudo mkdir -p /export/secondary

Set the right permission:

sudo chown -R nobody:nogroup /export
sudo chmod -R 777 /export

3. Configure Exports NFS:

Edit file /etc/exports and add :

/export *(rw,async,no_root_squash,no_subtree_check)

Command Explanation:

• rw: read and write

• async: performance enhancement

• no_root_squash: allow root access from client

• no_subtree_check: improved reliability

4. Activate Export:

sudo exportfs -a

5. Start dan Enable Service:

sudo systemctl start nfs-server
sudo systemctl enable nfs-server