You can manage verification your backup sets on either your production Exchange server or on a remote verification server, and you can use any of deferred verification, remote verification, and verification throttling to do so.
Verification of databases in a backup set can be done on the production Exchange server (the Windows host system running the Exchange server used to service the users) or on a remote verification system (a different Exchange server with Exchange management tools installed). Running database verification on a production Exchange server is CPU-intensive for the Windows host and also involves a substantial amount of activity on the storage system.
Both the deferred verification and remote verification manage database verification load by separating database verification from the backup operation. Verification throttling manages database verification load by slowing down the verification throughput rate.