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There are three reasons why a cloud-based disaster recovery service provider might use removable media:
To reduce the amount of time needed to perform an initial synchronization.
When an organization begins using a cloud-based disaster recovery service, it must upload all its available data before the cloud service provider can establish ongoing data synchronization. If an organization has vast quantities of data on hand, this initial synchronization process can take months to complete and consume excessive Internet bandwidth.
Some cloud-based disaster recovery service providers allow customers to write the initial backup to removable media and then physically ship that media to them. When this media is received, the provider restores the contents to its own servers and establishes synchronization without having to wait for the customer data to be transferred across the wire.
To assist customers with large-scale backup restorations.
It just might not be practical to download huge volumes of data across the wire. In this case, a cloud-based DR provider could send an organization's data to them via removable media.
As a contingency plan if an organization is impacted by a regional disaster.
Cloud-based disaster recovery service providers can help customers by shipping them their data while they wait for Internet connectivity to be re-established.
Why cloud-based disaster recovery is compelling
When to use removable media for backup and DR
Dig Deeper on Disaster recovery planning - management
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