Solved

Exchange Mailbox Migration errors

Posted on 2014-02-26
9
710 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
Optimizing Cloud Backup for Low Bandwidth

With cloud storage prices going down a growing number of SMBs start to use it for backup storage. Unfortunately, business data volume rarely fits the average Internet speed. This article provides an overview of main Internet speed challenges and reveals backup best practices.

 
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

Are your AD admin tools letting you down?

Managing Active Directory can get complicated.  Often, the native tools for managing AD are just not up to the task.  The largest Active Directory installations in the world have relied on one tool to manage their day-to-day administration tasks: Hyena. Start your trial today.

Question has a verified solution.

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

This is my first article on Expert Exchange on the Manual Method of Exporting Office 365 Mailboxes to PST format by using the eDiscovery mechanism of Office. Hope you will enjoy the article.
This article explains how to install and use the NTBackup utility that comes with Windows Server.
Microsoft Office Picture Manager has a Picture Shortcuts pane that shows a list with the Recently Browsed folders. While creating my video Micro Tutorial here at Experts Exchange showing How to Install Microsoft Office Picture Manager in Office 2013…
Access reports are powerful and flexible. Learn how to create a query and then a grouped report using the wizard. Modify the report design after the wizard is done to make it look better. There will be another video to explain how to put the final p…

773 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