Calculate the data reduction, bandwidth saved and transfer time cut by WAN deduplication and compression.
Deduplication removes repeated blocks and compression shrinks what remains, so the two multiply rather than add. Transfer time falls in direct proportion to the bytes that actually cross the link. Replication and backup windows are usually the reason a DCI or branch circuit gets upgraded, and a 6:1 effective ratio can defer that upgrade entirely.
Deduplication Savings
effective ratio = dedup ratio × compression ratio; saving % = 1 − 1 ÷ effective ratio.
effective ratio = dedup ratio × compression ratio; saving % = 1 − 1 ÷ effective ratio. Deduplication removes repeated blocks and compression shrinks what remains, so the two multiply rather than add. Transfer time falls in direct proportion to the bytes that actually cross the link.
Replication and backup windows are usually the reason a DCI or branch circuit gets upgraded, and a 6:1 effective ratio can defer that upgrade entirely.
This calculator takes 4 inputs: Data to transfer, Deduplication ratio (x:1), Compression ratio (x:1), WAN link rate. The pre-filled defaults are a realistic starting point — replace them with figures from your own environment for a result you can act on.