Solved

Exchange Mailbox Migration errors

Posted on 2014-02-26
9
715 Views
Last Modified: 2014-03-25
I am migration 44 mailboxes to Office365. I'm using a tool called migration-wiz.

So I had to give my admin account and give myself full permissions so this tool can gain access to the mailboxes and migrate the data.

After adding myself with those full access permissions to some users everything was good. But after a while I started to get a warning upon completion which i attached the photo below.

Now I checked my event log and I see this error

"Process w3wp.exe () (PID=4260). User 'Sid~ABC\john~EWS~false' has gone over budget '326' times for component 'EWS' within a one minute period. Info: 'Policy:DefaultThrottlingPolicy_8bbb676e-a705-4b0f-a58b-30777c69d87b, Parts:CAS:325;'. Threshold value: '100'."
Error.JPG
0
Comment
Question by:IT_Fanatic
  • 4
  • 3
  • 2
9 Comments
 
LVL 39

Accepted Solution

by:
Adam Brown earned 250 total points
ID: 39890345
Yeah. There's a feature you can enable called impersonation. What's happening is you are exceeding the Office 365 throttling policy limit for number of connections to the service. Impersonation will allow you to impersonate the mailbox you're migrating to and deal with the throttling limits of each user's mailbox instead of just yours. Connect to the Office 365 Exchange remote powershell and run this:

new-managementroleassignment -role "applicationimpersonation" -user youradminemail@company.com

That will set up your admin account in O365 to run in impersonation mode, which should fix that error for you.
0
 

Author Comment

by:IT_Fanatic
ID: 39890372
im on my computer. Where is the power shell for office 365?

The script would be this?

new-managementroleassignment -role "applicationimpersonation" -user john@abc.com
0
 
LVL 74

Assisted Solution

by:Jeffrey Kane - TechSoEasy
Jeffrey Kane - TechSoEasy earned 250 total points
ID: 39891488
An overview of why this is happening is here:
http://technet.microsoft.com/en-us/library/jj204570.aspx
and a bit more on the MigrationWiz blog here:
http://blog.migrationwiz.com/2012/05/15/microsoft-exchange-online-office-365-migration-performance-guide/


You cannot change the Throttling Policy on Office 365, as acbrown2010 described above.

Unfortunately, you must just tough it out and wait for the batches to go through -- which they eventually will.  

Try migrating mailboxes in smaller batches -- or migrate very large mailboxes (over 20GB) by themselves as a single-mailbox batch.

Jeff
0
Best Practices: Disaster Recovery Testing

Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.

 
LVL 74

Expert Comment

by:Jeffrey Kane - TechSoEasy
ID: 39891491
Also... if you are going to be the administrator for your Office365 service, you need to learn how to use it's powershell.

This blog post will help you do that:
http://www.codetwo.com/admins-blog/how-to-connect-and-remotely-manage-office-365-with-powershell/
0
 

Author Comment

by:IT_Fanatic
ID: 39891600
Wait so your telling me I have to stick to the 2 at a time out of 44 mailboxes? This will take about a year to complete
0
 
LVL 74

Expert Comment

by:Jeffrey Kane - TechSoEasy
ID: 39891684
Actually... I just took a look and see that the recommendation by acbrown2010 is somewhat correct.

MigrationWiz will actually do that change for you if you modify the Advanced Options of the connector:

http://blog.migrationwiz.com/2012/06/13/reduce-throttling-when-migrating-to-office-365-by-using-impersonation/

(I haven't used MigrationWiz in over a year because I've found that the built-in migration tools have been working well)
0
 
LVL 39

Expert Comment

by:Adam Brown
ID: 39940949
Well, Migwiz won't set the permissions for you. You have to do that manually. You also have to set Migwiz to use that feature for it to do so.
0
 

Assisted Solution

by:IT_Fanatic
IT_Fanatic earned 0 total points
ID: 39943258
I set the permissions. I called microsoft and they said theres just to many mailboxes and they are also very large. So the server will only migrate a few to control the  Throttling
0
 

Author Closing Comment

by:IT_Fanatic
ID: 39952691
I also selected my comment because I contacted Microsoft and they verified the issue.
0

Featured Post

PRTG Network Monitor: Intuitive Network Monitoring

Network Monitoring is essential to ensure that computer systems and network devices are running. Use PRTG to monitor LANs, servers, websites, applications and devices, bandwidth, virtual environments, remote systems, IoT, and many more. PRTG is easy to set up & use.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Microsoft Office Picture Manager was included in Office 2003, 2007, and 2010, but not in Office 2013. Users had hopes that it would be in Office 2016/Office 365, but it is not. Fortunately, the same zero-cost technique that works to install it with …
This article aims to explain the working of CircularLogArchiver. This tool was designed to solve the buildup of log file in cases where systems do not support circular logging or where circular logging is not enabled
This is Part 3 in a 3-part series on Experts Exchange to discuss error handling in VBA code written for Excel. Part 1 of this series discussed basic error handling code using VBA. http://www.experts-exchange.com/videos/1478/Excel-Error-Handlin…
A short tutorial showing how to set up an email signature in Outlook on the Web (previously known as OWA). For free email signatures designs, visit https://www.mail-signatures.com/articles/signature-templates/?sts=6651 If you want to manage em…

831 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question