Fixing old DAGs after migrating to O365
One of the other admins here was tasked with decommissioning our on-prem DAG and Exchange 2010 servers after moving to O365. Unfortunately, he just uninstalled the Exchange server software on the servers and turned them off. This left quite a mess with the Multiple DAGs and Databases.
I'm trying to clean this up so that I can manage exchange properties in our Azure AD.
Can anyone gives me an idea on how to fix this mess? Below is the status of our databases.
I'm trying to clean this up so that I can manage exchange properties in our Azure AD.
Can anyone gives me an idea on how to fix this mess? Below is the status of our databases.
[PS] C:\Windows\system32>Get-MailboxDatabaseCopyStatus *
Name Status CopyQueue ReplayQueue LastInspectedLogTime ContentIn
Length Length State
---- ------ --------- ----------- -------------------- ---------
DB1\CAPH-EXCHMBX3 Dismounted 0 0 Failed
DB2\CAPH-EXCHMBX3 Dismounted 0 0 Failed
DB3\CAPH-EXCHMBX3 Dismounted 0 0 Failed
DB4\CAPH-EXCHMBX3 Dismounted 0 0 Failed
DB5\CAPH-EXCHMBX3 Dismounted 0 0 Failed
Archive\CAPH-EXCHMBX3 Dismounted 0 0 Failed
DB6\CAPH-EXCHMBX3 Dismounted 0 0 Failed
DB2\CAPH-EXCHMBX4 ServiceDown 0 0 Unknown
DB3\CAPH-EXCHMBX4 ServiceDown 0 0 Unknown
DB6\CAPH-EXCHMBX4 ServiceDown 0 0 Unknown
Archive\CAPH-EXCHMBX4 ServiceDown 0 0 Unknown
DB5\CAPH-EXCHMBX4 ServiceDown 0 0 Unknown
EXDB1\CAPH-EXMAIL1 FailedAndSus... 35152 0 2/9/2018 7:30:15 PM 6
EXArchive\CAPH-EXMAIL1 Mounted 0 0 Healthy
EXDB2\CAPH-EXMAIL1 Mounted 0 0 Healthy
EXDB3\CAPH-EXMAIL1 Mounted 0 0 Healthy
EXDB4\CAPH-EXMAIL1 Mounted 0 0 Healthy
EXDB5\CAPH-EXMAIL1 Mounted 0 0 Healthy
EXDB6\CAPH-EXMAIL1 FailedAndSus... 33948 0 2/9/2018 7:30:15 PM 6
EXDB1\CAPH-EXMAIL2 Mounted 0 0 Healthy
EXArchive\CAPH-EXMAIL2 Healthy 0 0 12/17/2018 7:40:07 AM Healthy
EXDB2\CAPH-EXMAIL2 Healthy 0 0 12/17/2018 7:41:44 AM Healthy
EXDB3\CAPH-EXMAIL2 Healthy 0 0 12/17/2018 7:41:23 AM Healthy
EXDB4\CAPH-EXMAIL2 Healthy 0 0 12/17/2018 7:31:48 AM Healthy
EXDB5\CAPH-EXMAIL2 Healthy 0 0 12/17/2018 7:41:34 AM Healthy
EXDB6\CAPH-EXMAIL2 Mounted 0 0 Healthy
EXArchive\BDR-EXMAIL1 ServiceDown 0 0 Unknown
EXDB1\BDR-EXMAIL1 ServiceDown 0 0 Unknown
EXDB2\BDR-EXMAIL1 ServiceDown 0 0 Unknown
EXDB3\BDR-EXMAIL1 ServiceDown 0 0 Unknown
EXDB4\BDR-EXMAIL1 ServiceDown 0 0 Unknown
EXDB5\BDR-EXMAIL1 ServiceDown 0 0 Unknown
EXDB6\BDR-EXMAIL1 ServiceDown 0 0 UnknownASKER
We had about 6. I was able to delete most of the passive copies.
How do you remove the active copies?
How do you remove the active copies?
Check my KB: https://www.experts-exchange.com/articles/18110/How-To-Recover-Failed-Mailbox-Sever-In-Exchange-2010-DAG-Environment.html?headerLink=workspace_article
It has all removal and recover steps.
It has all removal and recover steps.
once you remove all passive copies from server, remove server from DAG, active copies in DAG will remain local on server, if all mailboxes are moved to O365 fro given active database, then check active databases one by one for any arbitration mailboxes, if found move them to any one active mailbox database and delete rest empty mailbox databases one by one from EMC /EMS
ASKER
Ok - I finally got them all to remove and uninstalled.
Is it possible to install 2016 on-prem for user management and add it into the o365 hybrid deployment?
Is it possible to install 2016 on-prem for user management and add it into the o365 hybrid deployment?
Did you removed all Exchange 2010 servers or you sill have anyone left, if your Exchange org is gone, then you need to install Exchange 2016 as fresh with new org name. If 2010 still present, then you need to do the Exchange migration.
ASKER
I removed them all. They were all corrupted and broken. I've migrated everyone to the o365 cloud.
I'm deploying an new 2012 DC server for a clean 2016 install. What do you mean a fresh org name?
I'm deploying an new 2012 DC server for a clean 2016 install. What do you mean a fresh org name?
exchange organisation name i believe
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Would EXBPA not help here?
I am referring to Exchange organization. Whenever you setup new Exchange environment, it creates an Exchange org. Per forest you can only have, one Exchange org. If you removed the current org, then you need to recreate new one.
1st you need to turn on all of them and if already all mailboxes are migrated to o365, then delete passive database copies
after that remove active database copies, remove DAG