The customer's backup administrator states that nightly backups of…

Question

The customer's backup administrator states that nightly backups of 40 TB of front-end data must complete inside a six-hour window. The new Data Domain appliance looks comfortable on capacity alone. What does that backup window tell the engineer during the pre-deployment review?

Accepted Answer

It defines a required sustained ingest rate of roughly 1.9 GB/s, so the platform and network must be validated against that throughput, not just against raw capacity. — Here's the deal: capacity says how much you keep, but a backup window says how fast it has to arrive. Forty terabytes in six hours is nearly 2 GB/s flowing nonstop, so you must prove the appliance and the network can actually absorb that rate. Size only for capacity and you still miss the window.

Answer

It has no design impact, because ingest speed is decided by the protocol chosen for each backup application, not by the customer's schedule.

Answer

It shows the dedupe ratio the system must achieve, because the window can only be met if nightly ingest is reduced to a few terabytes.

Answer

It sets the replication bandwidth requirement, because backup traffic and replication traffic always share the same measured WAN link.

The customer's backup administrator states that nightly backups of 40 TB of front-end data must complete inside a six-hour window. The new Data Domain appliance looks comfortable on capacity alone. What does that backup window tell the engineer during the pre-deployment review?

Short Explanation

Full Explanation