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Exchange 2010 Single-copy DB in a DAG won't mount

Situation is an Exchange 2010 DAG with one DB in particular that has only 1 copy on a server that is not currently the PAM/active server.
Can you mount a DB that has only 1 copy (no replication) that is in a DAG, but the DAG is active on another node?
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ganzano
Asked:
ganzano
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1 Solution
 
Abdul Khadja AlaoudineCommented:
Yes, you can mount the DB on passive server which does not have a copy. Let me know if you need further help.
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ganzanoAuthor Commented:
The passive server is the only one with the copy, there is no copy at the primary.
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Abdul Khadja AlaoudineCommented:
Still you should be able to mount it. What is the error message do you get when you try mount it?
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ganzanoAuthor Commented:
--------------------------------------------------------
Microsoft Exchange Error
--------------------------------------------------------
Failed to mount database '201_Store1'.

201_Store1
Failed
Error:
Couldn't mount the database that you specified. Specified database: 201_Store1; Error code: An Active Manager operation failed. Error The database action failed. Error: An error occurred while trying to validate the specified database copy for possible activation. Error: Server 'xxxxMBX201.xxxxxxxx.com' has been stopped. To start this server, use Start-DatabaseAvailabilityGroup.. [Database: 201_Store1, Server: xxxxxMBX01.xxxxxxxxxx.com].

An Active Manager operation failed. Error The database action failed. Error: An error occurred while trying to validate the specified database copy for possible activation. Error: Server 'xxxxMBX201.xxxxxxxxxx.com' has been stopped. To start this server, use Start-DatabaseAvailabilityGroup.. [Database: 201_Store1, Server: xxxxMBX01.xxxxxxxx.com]

An Active Manager operation failed. Error An error occurred while trying to validate the specified database copy for possible activation. Error: Server 'xxxxMBX201.xxxxxxxx.com' has been stopped. To start this server, use Start-DatabaseAvailabilityGroup..
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Abdul Khadja AlaoudineCommented:
Could you provide complete error message?

From the error message given so far I gather that the passive mailbox server is not started in the DAG. Run below cmdlets to get status and start it:

Get-DatabaseAvailabilityGroup <DAG_Name> | Fl Name,*server*

Start-DatabaseAvailabilityGroup <DAG_Name> -MailboxServer <ServerName>

Get-DatabaseAvailabilityGroup <DAG_Name> | Fl Name,*server*

Let me know the outcome.
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ganzanoAuthor Commented:
No good, same error. Output for DAG is below

Name                   : XXXX-DAG1
Servers                : {XXXXMBX201, XXXXMBX01}
WitnessServer          :xxxvmhub01.xxxxxxxx.com
AlternateWitnessServer : xxxxvmhub01.xxxxxxxx.com
StoppedMailboxServers  : {}
StartedMailboxServers  : {XXXXMBX201.XXXXXXXXX.com, XXXXMBX01.XXXXXXXxxx.com}
OperationalServers     :
ServersInMaintenance   :
OriginatingServer      : XXXXDC202.XXXXXxxxx.com
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Abdul Khadja AlaoudineCommented:
As previously requested could you provide complete error message that you get when you try to mount the database? It looks to me the error message provided is incomplete?

Servers XXXXMBX201, XXXXMBX01 - out of these two servers which one is active?
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ganzanoAuthor Commented:
Mount-Database
{Identity=201_Store1}

XXXX.com/XXXX Paxxxx/North America/NYC/Non-Employees/XXXXXXX
S-1-5-21-4075216594-1733368730-3076289119-2758
S-1-5-21-4075216594-1733368730-3076289119-2758
ServerRemoteHost-EMC
1144
102
00:00:00.2808018
View Entire Forest: 'True', Configuration Domain Controller: 'XXXXDC201.XXXXPaxxx.com', Preferred Global Catalog: 'XXXXDC201.XXXXPartners.com', Preferred Domain Controllers: '{ XXXXDC201.XXXXPartners.com }', User Configuration Domain Controller: 'XXXXDC201.XXXXPaxxxx.com'



System.InvalidOperationException: Couldn't mount the database that you specified. Specified database: 201_Store1; Error code: An Active Manager operation failed. Error The database action failed. Error: An error occurred while trying to validate the specified database copy for possible activation. Error: Server 'XXXXMBX201.XXXXParxxx.com' has been stopped. To start this server, use Start-DatabaseAvailabilityGroup.. [Database: 201_Store1, Server: XXX-NJ-MBX01.XXXXPaxxx.com]. ---> Microsoft.Exchange.Cluster.Replay.AmDbActionWrapperException: An Active Manager operation failed. Error The database action failed. Error: An error occurred while trying to validate the specified database copy for possible activation. Error: Server 'XXXXMBX201.XXXXPartners.com' has been stopped. To start this server, use Start-DatabaseAvailabilityGroup.. ---> Microsoft.Exchange.Cluster.Replay.AmBcsSingleCopyValidationException: An Active Manager operation failed. Error An error occurred while trying to validate the specified database copy for possible activation. Error: Server 'XXXXMBX201.XXXXPartners.com' has been stopped. To start this server, use Start-DatabaseAvailabilityGroup.. --- End of inner exception stack trace (Microsoft.Exchange.Cluster.Replay.AmBcsSingleCopyValidationException) --- at Microsoft.Exchange.Cluster.ActiveManagerServer.AmDbOperation.Wait(TimeSpan timeout) at Microsoft.Exchange.Cluster.ActiveManagerServer.ActiveManagerCore.MountDatabase(Guid mdbGuid, MountFlags storeFlags, AmMountFlags amMountFlags, DatabaseMountDialOverride mountDialOverride, AmDbActionCode actionCode) at Microsoft.Exchange.Cluster.ActiveManagerServer.AmRpcServer.<>c__DisplayClass4.<MountDatabase>b__3() at Microsoft.Exchange.Data.Storage.Cluster.HaRpcExceptionWrapperBase`2.RunRpcServerOperation(String databaseName, RpcServerOperation rpcOperation) --- End of stack trace on server (XXX-NJ-MBX01.XXXXPartners.com) --- at Microsoft.Exchange.Data.Storage.Cluster.HaRpcExceptionWrapperBase`2.ClientRethrowIfFailed(String databaseName, String serverName, RpcErrorExceptionInfo errorInfo) at Microsoft.Exchange.Data.Storage.ActiveManager.AmRpcClientHelper.RunDatabaseRpcWithReferral(AmRpcOperationHint rpcOperationHint, Database database, String targetServer, InternalRpcOperation rpcOperation) at Microsoft.Exchange.Management.SystemConfigurationTasks.MountDatabase.RequestMount(MountFlags storeMountFlags) at Microsoft.Exchange.Management.SystemConfigurationTasks.MountDatabase.InternalProcessRecord() --- End of inner exception stack trace ---



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Microsoft.Exchange.Cluster.Replay.AmDbActionWrapperException: An Active Manager operation failed. Error The database action failed. Error: An error occurred while trying to validate the specified database copy for possible activation. Error: Server 'XXXXMBX201.XXXXPartners.com' has been stopped. To start this server, use Start-DatabaseAvailabilityGroup.. ---> Microsoft.Exchange.Cluster.Replay.AmBcsSingleCopyValidationException: An Active Manager operation failed. Error An error occurred while trying to validate the specified database copy for possible activation. Error: Server 'XXXXMBX201.XXXXPartners.com' has been stopped. To start this server, use Start-DatabaseAvailabilityGroup.. --- End of inner exception stack trace (Microsoft.Exchange.Cluster.Replay.AmBcsSingleCopyValidationException) --- at Microsoft.Exchange.Cluster.ActiveManagerServer.AmDbOperation.Wait(TimeSpan timeout) at Microsoft.Exchange.Cluster.ActiveManagerServer.ActiveManagerCore.MountDatabase(Guid mdbGuid, MountFlags storeFlags, AmMountFlags amMountFlags, DatabaseMountDialOverride mountDialOverride, AmDbActionCode actionCode) at Microsoft.Exchange.Cluster.ActiveManagerServer.AmRpcServer.<>c__DisplayClass4.<MountDatabase>b__3() at Microsoft.Exchange.Data.Storage.Cluster.HaRpcExceptionWrapperBase`2.RunRpcServerOperation(String databaseName, RpcServerOperation rpcOperation) --- End of stack trace on server (XXX-NJ-MBX01.XXXXPartners.com) --- at Microsoft.Exchange.Data.Storage.Cluster.HaRpcExceptionWrapperBase`2.ClientRethrowIfFailed(String databaseName, String serverName, RpcErrorExceptionInfo errorInfo) at Microsoft.Exchange.Data.Storage.ActiveManager.AmRpcClientHelper.RunDatabaseRpcWithReferral(AmRpcOperationHint rpcOperationHint, Database database, String targetServer, InternalRpcOperation rpcOperation) at Microsoft.Exchange.Management.SystemConfigurationTasks.MountDatabase.RequestMount(MountFlags storeMountFlags) at Microsoft.Exchange.Management.SystemConfigurationTasks.MountDatabase.InternalProcessRecord()
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tshearonCommented:
Try reseeding the index.

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tshearonCommented:
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ganzanoAuthor Commented:
The index was not the problem. The root cause was a DAG had no valid copy after the PAM role changed after a failback.

Thanks anyway, all.
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