When you do major changes such as upgrading your kernel you might want an easy way to rollback any changes you make. 

You can create a SnapShot of your VPS which exists for 48 hours allowing you to easily roll back your VPS to when the SnapShot was taken.

A few things to note:

1. Managed backups will not be taken if a snapshot exists, so be sure to delete the snapshot when you no longer require it.

2. Snapshots are automatically deleted after 48 hours.

3. When a snapshot exists it will slow down your VPS somewhat.

To create a SnapShot:

1. Login to the https://portal.controlmyvps.com.au using your email address and password

2. Click on 'Virtual Machines'

3. Click on 'Manage' next to the VPS in question

4. In the 'Snapshot' window choose to 'Create Snapshot' (note you can only have one snapshot, so if you already have one you will need to delete it first).

5. If you want to roll back your VPS to when the snapshot was taken choose 'Restore Snapshot'.

Note: If you restore a SnapShot it will roll back your VPS to the state it was when the Snapshot was taken, this action is irreversible.