What migration speed should you expect when moving your public folders to Office 365?
There are many factors that will determine how fast you can get them to the cloud. Here are some to consider:
- The source of the data
- Data type and density
- Migration server
- Migration software
- Network bandwidth and upload pipe
- Office 365 performance thresholds (aka. EWS throttling)
Of these, assuming your approach uses mailbox connections as opposed to a migration API method, it is likely that your data migration speeds to Office 365 will be limited because of EWS throttling. The same applies with the later versions of Exchange Server on-premises.
Migration Performance Figures
When migrating public folders to Exchange 2013, for instance, Microsoft says you should expect 2 GB to 3 GB per hour. It is generally about that fast for Office 365 too.
With Exchange Server, you can disable EWS throttling. However, that doesn’t help if you are moving the data into Office 365 where there is no option to disable it.
If you have a large volume of public folder data, migration speeds of 48 GB to 72 GB per day is not going to be ideal. For instance, at these migration speeds, it would take 71 to 107 days to migrate 5 TB of public folders.|
See how the Public Folder Connector helps move Public Folder content to SharePoint Online, Shared Mailboxes, Microsoft Teams, and OneDrive for Business while preserving folder hierarchy and permissions.
We recently measured transfer performance for moving Public Folder content to Microsoft 365. The ExchangeSavvy Public Folder Connector can process up to 300 GB per day under optimal conditions. This is a sustained throughput level.
How does the ExchangeSavvy Public Folder Connector achieve high transfer performance despite Office 365 EWS throttling? It is no secret in the Office 365 migration world that you need to leverage multiple connections. We do that, along with some other magic behind the scenes to maximize performance when moving Public Folder content to modern Microsoft 365 destinations.
So, instead of taking 71 to 107 days to move that 5 TB of public folder data to the cloud, with the ExchangeSavvy Public Folder Connector, the transition can be completed in as little as 17 days, depending on your environment and network capacity.
Keep in mind that upload speeds on your network connection can yield very different results. Seeing 200 GB to 250 GB per day is a safe planning assumption based on migration speeds we experience at various customer sites.
