Re: Move mailbox process experience

On Tue, 9 Aug 2005 10:19:02 -0700, "BvdB"
<BvdB@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:

>
>
>"Mark Arnold [MVP]" wrote:
>
>> On Tue, 9 Aug 2005 06:48:06 -0700, "BvdB"
>> <BvdB@xxxxxxxxxxxxxxxxxxxxxxxxx> wrote:
>>
>> >Hello All
>> >
>> >Situation:
>> >Old exchange 2000 mailboxes have to move to a new exchange 2003 server with
>> >new hardware. The average mailbox is about 22 MB with 350 items.
>> >
>> >We're going to move a lot of users and I've some questions about the move
>> >mailbox proces.
>> >
>> >1. How large is the transaction log growth by the move mailbox wizard? Say
>> >you move 25 GB of mailboxes, what is the a approximately logfile growth? Does
>> >it grow?
>> >
>> >2. How much time does it cost to move 25 GB of mailboxes to another server?
>> >
>> >3. Is it possible to import a exchange 2000 database or storage group to
>> >another exchange 2003 server
>> >
>> >I would be very pleased if someone can share his/her experiences about the
>> >questions above.
>> >
>> >Kind regards,
>> >BvdB
>>
>> The transaction log will be similar to data moved. That's why it's a
>> good plan to do a couple of backups after you have moved each batch of
>> users. It keeps the number of logs to a manageable level.
>>
>> Elapsed time depends on the loading of the server whilst the moves are
>> going on and how powerful the boxes are. 25GB should take quite a few
>> hours.
>>
>> You can bring a 2000 store into a 2003 database. There are steps. Why
>> do you want to do this if you are doing a mailbox move migration? If
>> you have two boxes you should do the move method so that you don't
>> inconvenience the customer by having whole stores offline.
>>
>
>The problem is that we've about 25.000 mailboxes and it will take some time
>to move all the mailboxes.
>
>Any alternative quicker sollution will be very nice. If exchange can import
>a DB we could save a lot of time. Even if the store has some downtime, the
>customer will be satisfied more because the total move process will last
>several weeks.
>
>I think the move process is more useful for a small account of mailboxes.
>
>What would you advice for about 80 stores with 25.000 users, a mailbox move
>or a DB import?
>
>Kind regards
>BvdB

25,000 mailboxes and 80 stores. How many servers have you got? The
original post talked about one server and now you've scaled that up
slightly.

.

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