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Cloud connectors are a relatively common feature in backup appliances, and some backup appliances have even been designed to take on the role of a cloud storage gateway. Each vendor has its own product approach, but an appliance's built-in cloud connectivity can be used as a mechanism for replicating the contents of locally stored backups to the cloud.
Some backup appliances that include a native cloud gateway work with a vendor's cloud storage rather than offering the flexibility to connect to whatever cloud storage provider an organization chooses. This isn't necessarily a problem, but some users will likely want to choose a cloud provider rather than become locked into using the appliance vendor's cloud.
Fortunately, there are workarounds for this type of situation. If a backup appliance lacks a gateway that is suitable for connecting to a particular public cloud provider, an organization may be able to take advantage of a gateway provided by its cloud provider.
For example, suppose you wanted to replicate backup data to Amazon AWS, but the backup appliance lacked an appropriate gateway. Amazon provides a way to create a virtual tape library (VTL) that links to its storage. As long as the backup appliance supports the use of a VTL, the Amazon gateway should suffice for replicating backup data to the Amazon AWS cloud. Other public cloud providers may offer similar capabilities so that if your backup appliance lacks cloud connectors, you have options.
Cloud connector products help enterprises with application integration
Connecting on-premises apps to cloud-based software
Dig Deeper on Disk-based backup
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