The Abiquo Storage Model consists of the following elements:
The Applications or Appliance Library is contained on the NFS/CIFS Repository in private cloud. Install one NFS/CIFS Repository per Abiquo datacenter (physical datacenter).
The Apps Library contains:
A Hypervisor Datastore is mounted on the hypervisor and registered in Abiquo, usually in a service level called a datastore tier. When users deploy VMs in Abiquo, the virtual disk image is copied from the Apps library to the hypervisor datastore. For this reason, Abiquo recommends separating the Apps Library and the hypervisor datastores.
A hypervisor datastore contains:
Abiquo volumes are virtual block devices that can be mounted on VMs. You can attach volumes through the Abiquo UI and the API. And then you can configure a volume as a physical disk in a VM.
Virtual storage types in private cloud:
External storage can contain the following virtual storage types:
In public cloud users can attach VM volumes according to the provider technology, for example, EBS disks in AWS and Managed Disks in Azure. For VM system disks in public cloud, the platform support hard disks only.
The following diagram gives an overview of the Abiquo Storage Model.