Simple definition
A backup performance tier provides primary repository capacity for fast backup writes and restores.
Purpose and use
The performance tier is the Veeam scale-out repository layer intended for routine access to backup data.
How does it work?
It groups compatible extents according to product and version; supported technologies can include conventional repositories or object storage.
Example and verification
For sizing, assess write throughput, concurrent restores and expected backup-chain maintenance operations.
Points to watch
The word performance guarantees no particular latency or bandwidth. Load, networking and extent capabilities determine actual results.
In short
Select the tier for real workload and recovery requirements rather than its name alone.