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MutogiFlag for United States of America

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Exchange 2003 Migration Timing

Hi everyone,

We are planning on a migration tomorrow at 6am and seeing if the experts would answer one question?


Can clients still receive email and connect to the exchange on server 2003 or are they going to have to wait till all is migrated?

HELP
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Alan Hardisty
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Thanks again for the info here are some responses for you all....

i plan on a swing migration and follow these instructions as i will be do exactly that.
http://rdsrc.us/T3hEWT 

move sbs2003 exchange to server 2008 with exch 2010

testing on a client or 2 is an excellent idea, will do.

another question if a mailbox is over 2GB is there a problem with that in a swing migration?

Help and thanks for the super fast response!!!!
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ok tell me what to expect pretty standard environment 22 users and about 60GB store??

the Global address list is really the only thing that is out there,

what exactly consists "shared user data"??
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so im guessing top lvl is 6GB ill be OK?
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ASKER

the other thing im switching DC to that server as well anything that i need to know?

how will they log in tomorrow?
You should be fine - it just depends on the speed of the SBS 03 server and the network.

I had planned to move mailboxes and data over the weekend just gone.  Started the mailbox moves Friday at 6:00pm and by Monday, the last two mailboxes were still moving (11.1Gb and 6.5Gb).  I had to suspend the moves so the users could work and then as I foresaw that the moves would not complete overnight, got them to archive their mailboxes to only keep items newer than 3 months old.

The last mailbox moved last night and I am moving data over this coming weekend.

If you plan for it to take longer than you think and warn people, then they won't be upset if it takes that long as they have been warned, but if you set the expectation at completion in 24 hours, then it takes longer, they will not be happy.

The total store size I tried to move was about 53Gb (42Gb .EDB and 9Gb .STM), so 60Gb could take longer than it took me and that was about 60 hours with the end still in sight.
If you add the new server as a DC, but don't switch FSMO roles until you are ready to kill the SBS 03 server, then you should be fine and users will still be able to login happily.

Demazter's guide covers all this.
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i know it does this is the virgin run and ive tested in VM enviro and tested and researched and researched but im so uncomfortable about it but im ready to do it.

what happens if this errors out?

i did all server best practice analyzer and exchange best proactive analyzer, all golden!
If it goes wrong - post on EE and you will find me around, or if not, look me or Demazter (Glen) up.  I am always in contact with Glen and if I can't help you, then I can ask him to look in.

If this is your first one - it will be nerve-wracking, but take it slow and steady and don't move on to the next step until you have finished the one you are working on.  If it doesn't complete as expected - use EE - just be careful of some of the advice from the Experts that haven't proven themselves as much as some of the other experts.  Plenty of Experts are well-versed in using Google but haven't the knowledge / experience to backup their search results :)
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ASKER

Thank YOU!

ill post at the end of the night let you know how it went....so far....
You are welcome.

Hope it goes smoothly.  I'm about tomorrow (in a training course), but should be available.

Shout if you need anything.

Alan
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ASKER

Problems:

1. 3 mailboxes over the limit, i can fix....
2. 1 mailbox with permission, INSUF_PERMISIONS
3. 1 mailbox ERROR PROPERTY EXP

NO activsync to phone changed DNS last week to 10 mail.company.com and 20 owa.company.com (20 is the new server)
no  A host records added.

HELP
Technically, you should be asking a new question as the is question is about the timings of a migration.

Not sure about the permissions - have you run the Exchange Best Practises Analyzer on the SBS server?  Are you using a Domain Admin account to migrate?  Does the account you are using have permissions on the stores?

Did you install an SSL certificate on the Exchange 2010 server and switch port 443 on your firewall to the new server yet?
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ASKER

i think with the phones, its a DNS issue.
ill open another post for the other questions.

Not sure about the permissions - have you run the Exchange Best Practises Analyzer on the SBS server?  
Yes, everything OK no problems

Are you using a Domain Admin account to migrate?  
Yes


Does the account you are using have permissions on the stores?
shouldnt but im not for sure.
If I remember well in Swing migration there should be some .vbs sorting out the permission issue. Make sure you read the documentation although it's not as exact as one would wish