How to setup a recurring snapshot of a volume
A volume snapshot is a copy of a storage volume (root disk or data disk), captured at a point in time.
Volume snapshots are different from virtual machine snapshots. See How to take a snapshot of a VM
Volume snapshots can be taken manually, see How to take a snapshot of a volume, or automatically at scheduled intervals, as described here.
Each volume snapshot consumes an amount of space equal to the original volume size. Because of this, volume snapshots are not a cost effective way of storing multiple backups of a volume. The most efficient approach is to use recurring snapshots, for which only the most recent (one or two) snapshots are retained, and set the snapshot frequency to daily or hourly as required.
To make use of the data in a snapshot, you can convert it to a volume, and attach the volume to a VM in order to access the stored data. A snapshot can also be converted to a template, which can be used to create VMs.
Click in the task bar. The following dialog should appear:in the left-hand menu. Click the name of the volume you wish to snapshot. In the sub-panel, click the button
Choose, , or , and set the required and for each snapshot, with reference to the selected .
In theinput you must enter the number of snapshots that will be kept: '1' means keep the most current and delete all previous, '2' means keep the current and one previous, and so on.
Click. The new recurring snapshot will be listed at the bottom of the dialog (under the heading Scheduled Snapshots) along with any existing schedules for this volume.
Click the to delete any of the existing schedules. Note: this does not affect any snapshots already taken and existing, only snapshots in the future.button
Clickto close the dialog.
Click the name of a volume. Click the .button in the Details sub-panel:
A list of snapshots for this volume will be displayed:
Alternatively, you can see a list of all the snapshots in your VDC account by clickingin the left-hand menu, then use the drop-down list to select .
The snapshot list contains automatic and manual snapshots, which is indicated by the 'Interval Type' (MANUAL, HOURLY, DAILY, WEEKLY, MONTHLY).
A new snapshot will appear in the list of snapshots with the state ‘BackingUp’, otherwise a successful state will be ‘BackedUp’, with a green indicator dot.
Click the name of a snapshot to show itssub-panel:
There is a task bar containing buttons for three operations:
: Templates that you create will appear in the 'Mine' category of the panel, and in the 'My Templates' category when you deploy a new virtual machine.
: The volume that you create will appear in the list of volumes in the panel and the contents of the volume can be accessed by using to attach the volume to a VM.
: Note that deleted volume snapshots cannot be recovered.