Interoute Virtual Data Centre provides a flexible storage infrastructure that allows customers to precisely deploy the storage required for their IT infrastructure avoiding the costs of unused disk space.
Each virtual machine has a fixed system disk, sized to contain the Operating System and common server applications. This is achieved by use of an external block storage (EBS) volume attached to the VM.
Independent EBS datadisk volumes for applications and users' data can be created, attached and detached from VMs. The size of a volume is defined at the time of creation, but can be changed later. You can attach multiple volumes to a single virtual machine. As with any block storage device, users can format an attached volume for use with their preferred operating system and file system variant, or use the EBS device raw.
EBS volumes can be created based on magnetic disk physical drives, or SSD solid state drives. The price per gigabyte is the same for both types.
Once attached and the virtual machine powered on, application data can then be written to an EBS volume. When the machine is un-deployed, the data will persist on the volume and may be attached to an alternative machine.
Interoute Virtual Data Centre offers three EBS protection tiers to meet the data protection and data recovery requirements of the customer. All backup data storage is inclusive to the per-gigabyte pricing of each tier.
EBS Storage (magnetic or SSD)
This tier provides the standard resiliency built into the storage platform in a single VDC zone. All EBS volumes are provisioned in an HA enterprise class environment using a RAID configuration to ensure continuous operation.
Protected EBS Storage (magnetic or SSD)
This tier provides customers with an automated local (in the same VDC zone) snapshot of the complete data volume, every 4 hours. Snapshots are stored for a maximum of 28 days.
Mirrored EBS Storage (magnetic)
This tier provides customers with both an automatic local data snapshot, and a remote snapshot in a geographically-separate VDC zone. The dual snapshots are taken every 4 hours, and stored for a maximum of 28 days.