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BCL-4181 asked AndyDavid commented

Where do I do this step from: Move the remaining arbitration mailboxes ? The 2013 EAC?

Move the remaining arbitration mailboxes


After you've verified that the migration mailbox move has completed successfully, you can move the rest of your existing arbitration mailboxes to Exchange 2019.

In the EAC, go to Recipients > Migration.
Click New, and then click Move to a different database.
On the New local mailbox move page, click Select the users that you want to move, and then click Add.
On the Select Mailbox page, add the following mailboxes:
DiscoverySearchMailbox{D919BA05-46A6-415f-80AD-7E09334BB852}
FederatedEmail.4c1f4d8b-8179-4148-93bf-00a95fa1e042
SystemMailbox{1f05a927-XXXX-XXXX-XXXX-XXXXXXXXXXXX} (for example, SystemMailbox{1f05a927-7bd0-47e5-9b6a-0b5ec3f44403}; most of the mailbox name is unique to your organization)
SystemMailbox{bb558c35-97f1-4cb9-8ff7-d53741dc928c}
SystemMailbox{e0dc1c29-89c3-4034-b678-e6c29d823ed9}
When you're finished, click OK,and then click Next.
On the Move configuration page, enter the name of the migration batch, and then click Browse next to the Target database box.
On the Select Mailbox Database page, add the target mailbox database. Be sure to select an Exchange 2019 database (Version 15.2), click OK, and then click Next.
On the Start the batch page, select the options to automatically start and complete the migration request, and then click New.

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Hi @BCL-4181

I am writing here to confirm with you how thing going now?
If you have any questions or needed further help on this issue, please feel free to post back.

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AndyDavid answered AndyDavid commented

Run from the 2019 server.

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Got it...nothing appeared so I actually had to go look for them.
In this step, it's just the mailboxes listed above that I'm moving... (no one else yet, right?)
Or am I just setting them up to move?
Thanks

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Nope, you are moving them :)

Finish them up and then you can move onto the user mailboxes.

The easiest way is Exch Powershell

 get-mailbox -arbitration |  new-moverequest -targetdatabase <New2019DB>




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Hey Andy,
I'm just getting back to this and noticed the following mailbox :
DiscoverySearchMailbox{D919BA05-46A6-415f-80AD-7E09334BB852}
Is not listed when I run the cmdlt:
Get-Mailbox -Arbitration | Format-List Name,Database,ServerName,AdminDisplayVersion

On the new exchange server.
I checked the unique ID's just in case the names may have changed, but nope, it's not listed in the new Exchange box.

Should I go back and see about moving it on it's own?

ThanksB

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