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====== Snapshots ======
Snapshots are instantaneous captures of a VM disk in a particular moment in time. They can be done manually or automatically and periodically using a set of rules.\\
<note warning>
There's a limit of 2 snapshots per user.
</note>
Snapshot management is done in the "Storage" screen:
[{{ :centro:servizos:cloud:volumes.png?nolink |Storage}}]
In the dropdown "Select view" we can choose between displaying a volume or a snapshot list. It is always possible to see the snapshots of a particular volume if we first select it to see its details and then push the "View snapshots" button.\\

When selecting a volume the following action bar is shown:
[{{ :centro:servizos:cloud:opciones_de_volumen.png?nolink |Volume options}}]
===== Manually creating a snapshot =====
{{ :centro:servizos:cloud:create_snapshot.png?nolink |}}
After requesting confirmation the snapshot is made. It is a slow process and its duration depends on the volume size and on the network usage at that moment. In the snapshots list we can check its state:
  * "BackingUp" while in process.
  * "BackedUp " when completed.
===== Create periodic snapshots =====
{{ :centro:servizos:cloud:create_recurring_snapshot.png?nolink |}}
When choosing this option a screen appears to configure the snapshot periodicity:
[{{ :centro:servizos:cloud:menu_recurring_snapshot.png?nolink | Periodic snapshots parameter menu.}}]
Snapshots can be done with the following periodicity:
  * "hourly": each hour at a specific minute.
  * "daily": each day at a specific hour.
  * "weekly": each week at a specific day and hour.
  * "monthly": each month at a specific day and hour.
All periodicities have a "Keep x snapshots" parameter where x is the snapshots number to hold. If we choose one (recommended) each new snapshot will overwrite the previous.

A new snapshot will be added to the list when we click "Add" and the process can be repeated till the "Done" button id chosen.

===== Recover an snapshot =====
<note warning>
CloudStack does not support booting a VM from a "root disk" recovered from a snapshot. All snapsno soporta el arranque de una VM a partir de un "root disk" recuperado de un snapshot. Todos los snapshots se consideran "data disks". Sin embargo es posible convertir el snapshot de un "root disk" en un template y crear una VM a partir de dicho template.
</note>
A partir de la lista de snapshots, seleccionando una de ellas podremos recuperar un snapshot creando un volumen de tipo "data disk" o creando un "template".