Exchange Mailbox Migration Slow

I have installed 2 dag nodes multirole.

Exchange mailbox migration slow.

I also can tell you i saw more errors and stalled out mailboxes moves than i have ever seen in any migration or even in any number of migrations combined while trying to perform these moves. Analysis of the move request shows that the sourcesideduration value is greater than the expected range of 60 to 80 percent. I am doing migration from exchange 2007 to exchange 2013 sp1 cu22. For testing i moved one mailbox from 2007 to 2013.

I recently built new exchange 2016 servers for a customer and needed to move all of the users mailboxes to the new servers. But status shows syncing. Hi try the following settings and see how it goes. High network latency affects the move rate more if there are too many folders.

There were about 700 users and 1 5tb of email so obviously this was going to take a very long time i began researching how to increase the. When i initially issued the moved requests the migrations were running about 10mbps and only moving about 5 mailboxes at a time. Increase the export buffer size. Needless to say if your migration is going on at a frequency that is less than the figures mentioned above your exchange 2013 migration is actually running slow.

Posted on august 24 2018 by damian. Mailbox migration exchange 2010 to exchange 2016. Now your mailboxes will move without any throttling policy. Checked if there is any issues in network also gone through firewall settings and found no issues.

Delete empty mailbox folders or consolidate mailbox folders. Then restart the exchange mailbox replication service. This includes migrating your mailboxes from other hosted email services such as gmail or yahoo mail. This is usually not feasible but can be preferred if the migration project is time critical.

The mailbox size was 5 5gb and it took around 2 hours and 50 minutes to complete. Also if the mailbox moves aren t reaching to completion it s time to do something to troubleshoot migration issues. Slow mailbox moves in exchange 2016. Hybrid mailbox migration for one or more large mailboxes is slow because of network latency.

Internet message access protocol imap migration. Once the mailbox migration is complete change the value back to 1 to re enable mrs resource monitoring. Today while migrating mailboxes from exchange 2010 to exchange 2013 it s very slow. Today this blog will show the enhanced migration procedure.

Try one or a combination of these in your environment and see what works best for you. You can use the exchange admin center or exchange online powershell to migrate the contents of users mailboxes from an imap messaging system to their microsoft 365 or office 365 mailboxes. Migrate mailboxes from servers closer to office 365 datacenters.