You can view the snapshot providers that are installed on a remote computer before you run an offhost backup for selected resources.
The Microsoft Volume Shadow Copy Services (VSS) hardware or software provider that you select when creating an offhost backup must also be installed on the remote computer that you want to back up. If the snapshot provider is not installed on the remote computer, the snapshots of the volumes cannot be imported to the media server.
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Requirements for offhost backup when using the Veritas Storage Foundation for Windows Provider
Requirements for offhost backup