Quorum file share witness exchange 2010

In your case server in the primary datacentre is the locking node. So based on your configuration things are looking just fine. If you want to change this behavior add another DAG member in the datacentre where you are hosting the active users. I have already created new fsw but i cannot delete the old one. Please suggest.. Ensure that there are no references to it within your DAG configuration. Try to repair the cluster on going to Failover cluster manager - on the middle of the cluster window - right the cluster - select repair - this may take few second to bring the cluster offline and online.

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Sign in to vote. Hello All, in existing environment is two exchange server in two different location. Sunday, March 16, AM. That is a normal behavor. With a two server DAG one in each datacentre when you lose the server where the primary FSW is located you will lose the quorum therefore you need to follow a Datacentre switcover process. When both servers up and running database failover should work with no issues.

Find threads, tags, and users Thank you in advance, Michael. Comment Show 0. Current Visibility: Visible to all users. I'll try and post back Seems there's another issue with cluster service Hi MikhailFirsov Is it possible to bring Exch2 online?

This is test right : Can you give desribe whats going on? Thanks, I'll try - can't do it right now - Exch1 is also down :. These networks will be configured as shown in the following table. To complete the configuration of ReplicationDagNetwork01 as the dedicated replication network, disable replication for MapiDagNetwork by running the following command.

This is done intentionally by the system to maintain high availability. In the preceding example, even though there are two different subnets in use by the DAG In the following configuration, there are four subnets configured in the DAG: By default, DAGs perform discovery of all networks detected and configured for use by the underlying cluster.

As a best practice, iSCSI storage should use dedicated networks and network adapters. This command will also disable the network for use by the cluster. Mailbox servers that are members of a DAG have some properties specific to high availability that should be configured as described in the following sections:.

Automatic database mount dial. Database copy automatic activation policy. The AutoDatabaseMountDial parameter specifies the automatic database mount behavior after a database failover. BestAvailability : If you specify this value, the database automatically mounts immediately after a failover if the copy queue length is less than or equal to The copy queue length is the number of logs recognized by the passive copy that needs to be replicated.

If the copy queue length is more than 12, the database doesn't automatically mount. When the copy queue length is less than or equal to 12, Exchange attempts to replicate the remaining logs to the passive copy and mounts the database. GoodAvailability : If you specify this value, the database automatically mounts immediately after a failover if the copy queue length is less than or equal to six. If the copy queue length is more than six, the database doesn't automatically mount.

When the copy queue length is less than or equal to six, Exchange attempts to replicate the remaining logs to the passive copy and mounts the database. Lossless : If you specify this value, the database doesn't automatically mount until all logs generated on the active copy have been copied to the passive copy.

This setting also causes the Active Manager best copy selection algorithm to sort potential candidates for activation based on the database copy's activation preference value and not its copy queue length. The default value is GoodAvailability. If you specify either BestAvailability or GoodAvailability , and all the logs from the active copy can't be copied to the passive copy being activated, you may lose some mailbox data. However, the Safety Net feature which is enabled by default helps protect against most data loss by resubmitting messages that are in the Safety Net queue.

The DatabaseCopyAutoActivationPolicy parameter specifies the type of automatic activation available for mailbox database copies on the selected Mailbox servers. Blocked : If you specify this value, databases can't be automatically activated on the selected Mailbox servers.

IntrasiteOnly : If you specify this value, the database copy is allowed to be activated on servers in the same Active Directory site. This prevents cross-site failover or activation. This property is for incoming mailbox database copies for example, a passive copy being made an active copy.

Databases can't be activated on this Mailbox server for database copies that are active in another Active Directory site. Unrestricted : If you specify this value, there are no special restrictions on activating mailbox database copies on the selected Mailbox servers. The MaximumActiveDatabases parameter also used with the Set-MailboxServer cmdlet specifies the number of databases that can be mounted on a Mailbox server.

You can configure Mailbox servers to meet your deployment requirements by ensuring that an individual Mailbox server doesn't become overloaded.

The MaximumActiveDatabases parameter is configured with a whole number numeric value. When the maximum number is reached, the database copies on the server won't be activated if a failover or switchover occurs. If the copies are already active on a server, the server won't allow databases to be mounted. Before performing any type of software or hardware maintenance on a DAG member, you should first put the DAG member in maintenance mode. It also moves all critical DAG support functionality, such as the Primary Active Manager PAM role, and blocks them from moving back to the server before maintenance is complete.

Both scripts can be run locally or remotely. The RedistributeActiveDatabases. Therefore, you'll only need to use RedistributeActiveDatabases. If any of the preceding tasks fails, all operations, except for successful database moves, are undone by the script. To begin maintenance procedures on a DAG member, including flushing the transport queues and suspending client connectivity, perform the following tasks:.

To begin the process of draining all Unified Messaging calls in Exchange only , run the following command:.

For the value of the MoveComment parameter, you can make any notation you want. The above example uses "Maintenance. This script can take some time to execute, and during this time you may not see any activity on your screen. To redirect messages pending delivery in the local queues to the Exchange server specified by the Target parameter, run.

To verify the server has been placed into maintenance mode, confirm that only Monitoring and RecoveryActionsEnabled are in an Active state when you run the following command:. The StopDagServerMaintenance. When you're ready to restore the DAG member to full production status, including resuming the transport queues and client connectivity, perform the following tasks:. If you're installing an Exchange update, and the update process fails, it can leave some server components in an inactive state, which will be displayed in the output of the above Get-ServerComponentState cmdlet.

To resolve this, run the following commands:. Exchange high availability solution is integrated with the Windows shutdown process. If an administrator or application initiates a shutdown of a Windows server in a DAG that has a mounted database that's replicated to one or more DAG members, the system attempts to activate another copy of the mounted database prior to allowing the shutdown process to complete.

However, this new behavior doesn't guarantee that all of the databases on the server being shut down will experience a lossless activation. As a result, it's a best practice to perform a server switchover prior to shutting down a server that's a member of a DAG.

Installing Exchange updates on a server that's a member of a DAG is a relatively straightforward process. When you install an update on a server that's a member of a DAG, several services are stopped during the installation, including all Exchange services and the Cluster service. The general process for applying updates to a DAG member is as follows:. Use the steps described above to take the DAG member out of maintenance mode and put it back into production.

Optionally, use the RedistributeActiveDatabases. For more information about the latest Exchange updates, see Exchange Server build numbers and release dates. Skip to main content. This browser is no longer supported. Download Microsoft Edge More info. Contents Exit focus mode. Is this page helpful? Please rate your experience Yes No.