RESOLUTION:
- Unfortunately, there is no Document about the ODME performance
The rough estimation that you can take is around 0.3-0.5 GB per hour per mailbox
- Tenant to Tenant migration can be higher
- Performance depends on other resources as network/RAM/CPU in the environment
- ODME doesn't give any "guaranteed" numbers
- For the concurrency, please refer to the Document Chapter
https://support.quest.com/technical-documents/on-demand-migration-for-email/current/user-guide/25#TOPIC-833579