About persistent storage

Abiquo works with non-persistent and persistent storage. Persistent storage refers to storage elements that will not be destroyed when you undeploy a VM.

In general:

• A volume is an element of persistent storage that will not be destroyed when you undeploy the VM.

• A hard-disk is an element of non-persistent storage that will be destroyed when you undeploy the VM.

Private cloud environments use non-persistent storage with hard disks on the hypervisor datastore. To make a backup of non-persistent storage, create an Instance template to store hard disks as a template in the Catalogue.

Most public cloud environments offer a combination of hard disks and storage volumes. For example, for volumes, in Amazon the platform creates EBS disks and in Azure the platform creates Managed Disks. If a user creates a VM with a hard disk that the cloud provider will keep after the user destroys the VM, then the platform will manage the hard disk as a storage volume.