Exchange 2019 added multiple Mailbox databases copies status failed

Question

Exchange 2019 added multiple Mailbox databases copies status failed

Innocent Heartvoice 296

We have 3 servers Exchange 2019 with DAG and now a new server has been added to DAG and there are about 50 databases with an average mailbox database size of 150 GB to 200 GB.

The problem I am having is that the new server is unable to add multiple database copies at once and has failed to retrieve the error of the database copies.

Need assistance to add multiple database copies for time saving

1 answer

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Answer 1

Andy David - MVP 157.4K MVP Volunteer Moderator

I would open three or 4 Exchange Powershell windows on the destination server and in each run the command:

Example:
Add-MailboxDatabaseCopy -Identity DB1 -MailboxServer MBX3 -ActivationPreference 2

https://learn.microsoft.com/en-us/exchange/high-availability/manage-ha/add-db-copies?view=exchserver-2019

If you see failures when you do this, that is normal.

For the ones that fail, run:

Update-MailboxDatabaseCopy -Identity DB1\MBX1

https://learn.microsoft.com/en-us/exchange/high-availability/manage-ha/update-db-copies?view=exchserver-2019

Sometimes you have to suspend and resume the copying:

Suspend-MailboxDatabaseCopy -Identity DB1\MBX1 -SuspendComment "Maintenance on MBX1" -Confirm:$False  
Resume-MailboxDatabaseCopy -Identity DB1\MBX1

https://learn.microsoft.com/en-us/exchange/high-availability/manage-ha/suspend-resume-db-copies?view=exchserver-2019

Innocent Heartvoice 296 Reputation points

2022-06-07T05:51:14.587+00:00

@Andy David - MVP Thank you for your reply. Can I get a database copy from a passive server instead of an active server?

I'll try the steps you shared and then update you.
Andy David - MVP 157.4K Reputation points MVP Volunteer Moderator

2022-06-07T11:22:15.013+00:00
Yes.

Use:

Update-MailboxDatabaseCopy -Identity DB1\MBX1 -SourceServer MBX2
Innocent Heartvoice 296 Reputation points

2022-06-08T16:04:57.02+00:00

@Andy David - MVP I have tried the steps you shared with me but the problem is that there was an error copying the database and it was come in failed state after sometime, and the status showing in seeding state. After running the suspend-mailboxdatabaecopy cmdlet it takes time to suspend the database.

Can you help us figure out how to easily replicate the database?
Innocent Heartvoice 296 Reputation points

2022-06-09T07:27:08.487+00:00

Having this error message "The seeding operation failed. Error: An error occurred while performing the seed operation. Error: An error occurred while communicating with server 'ServerEx1'. Error: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host. [Database: Database06,"]
Innocent Heartvoice 296 Reputation points

2022-06-10T05:52:00.307+00:00

Can some one assist on this to resolve the issue.
Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2022-06-10T07:17:59.587+00:00

Hi,

Error: Unable to read data from the transport connection: An existing connection was forcibly closed by the remote host.

As far as I know , this error is most likely due to a network problem or firewall.
Please have a check if the network connection between the two servers is working fine and the firewall is not blocking network traffic.
Innocent Heartvoice 296 Reputation points

2022-06-10T10:08:00.62+00:00

I checked the network and firewall settings and found nothing. Yes, the connection between the servers is good and we have already replicated eight databases but after that we move more databases then this error message comes. Another thing is that after the database fails and is disconnected, the seeding of the database continues.

Any idea what caused this error message to stop replicating.
Andy David - MVP 157.4K Reputation points MVP Volunteer Moderator

2022-06-10T11:53:26.23+00:00

Even if you just add database at a time?
Innocent Heartvoice 296 Reputation points

2022-06-10T15:25:25.213+00:00

Yes, when add a database at a time.
Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2022-06-14T11:00:00.4+00:00
Please refer to the following command to get more details about the status of the database where copy has failed:

Get-MailboxDatabaseCopyStatus * Test-ReplicationHealth -Identity <servername>
Innocent Heartvoice 296 Reputation points

2022-06-16T07:13:44.287+00:00

Test-ReplicationHealth shows the below error message but couldn't find the solution to resolve this issue.

"Continuous Replication for Database 'Database32\EXSER01' is in a 'FailedAndSuspended' state on machine 'EXSER01'. The reason it is suspended is: The seeding operation failed. Error: An error occurred while performing the seed operation. Error: An error occurred while communicating with server 'EXSER03'. Error: Unable to read data from the transport connection: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond."
Aholic Liang-MSFT 13,886 Reputation points Microsoft External Staff

2022-06-17T09:51:58.707+00:00

Hi,

A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.

According to the error message, It still looks like there is a problem with the network connection.
Could you please describe how the network is configured between the servers that are having problems?
Innocent Heartvoice 296 Reputation points

2022-06-20T04:36:52.973+00:00

The following is the network configuration.

Get-DatabaseAvailabilityGroupNetwork DAGServer | fl

RunspaceId : 1d8bd6e3-e3a8-4d7f-8fb4-bf7778e8493d
Name : MapiDagNetwork
Description :
Subnets : {{172.1.0.0/16,Up}}
Interfaces : {{Server01,Up,172.1.1.1}, {Server02,Up,172.1.1.2}, {Server03,Up,172.1.1.3},
{Server04,Up,172.1.1.4}}
MapiAccessEnabled : True
ReplicationEnabled : True
IgnoreNetwork : False
Identity : DAGServer\MapiDagNetwork
IsValid : True
ObjectState : New

RunspaceId : 1d8bd6e3-e3a8-4d7f-8fb4-bf7778e8493d
Name : ReplicationDagNetwork01
Description :
Subnets : {{192.168.3.0/24,Up}}
Interfaces : {{Server01,Up,192.168.1.1}, {Server02,Up,192.168.1.2}, {Server03,Up,192.168.1.3},
{Server04,Up,192.168.1.4}}
MapiAccessEnabled : False
ReplicationEnabled : True
IgnoreNetwork : False
Identity : DAGServer\ReplicationDagNetwork01
IsValid : True
ObjectState : New

RunspaceId : 1d8bd6e3-e3a8-4d7f-8fb4-bf7778e8493d
Name : ReplicationDagNetwork02
Description :
Subnets : {{10.10.10.0/24,Misconfigured}}
Interfaces : {}
MapiAccessEnabled : False
ReplicationEnabled : False
IgnoreNetwork : False
Identity : DAGServer\ReplicationDagNetwork02
IsValid : True
ObjectState : New

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Exchange 2019 added multiple Mailbox databases copies status failed

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