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Storage Virtual Machine : Storage > Volumes : Understanding volumes : How incremental tape backup uses SnapDiff and Snapshot copies
How incremental tape backup uses SnapDiff and Snapshot copies
The storage capacity potential of an Infinite Volume is larger than what a traditional file-scanning backup application can back up in a reasonable time. An incremental backup of Infinite Volumes to tape by using SnapDiff and Snapshot copies is the only viable solution for large Infinite Volumes.
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What SnapDiff is
SnapDiff is an internal Data ONTAP engine that quickly identifies the file and directory differences between two Snapshot copies.

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