Windows 2008 prevent cluster failover

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Choose what best fits your environment and budget to get the most out of your software. Get priority call queuing and escalation to an advanced team of support specialist. Premier Support Premier Enterprise Support. Database Management. Orange Matter. View Orange Matter. LogicalRead Blog. Read the Blog. Articles, code, and a community of database experts. Microsoft Windows Server Failover Cluster This template assesses the status and overall performance of a Microsoft Windows Failover Cluster by retrieving information from performance counters and the Windows System Event Log.

Prerequisites WMI access to the target server. Credentials Windows Administrator on the target server. Component monitors Click here for an overview about SAM application monitor templates and component monitors. Network Reconnections: Reconnect Count This monitor returns the number of times the nodes have reconnected.

Network Reconnections: Normal Message Queue Length This monitor returns the number of normal messages that are in the queue waiting to be sent. Network Reconnections: Urgent Message Queue Length This monitor returns the number of urgent messages that are in the queue waiting to be sent. Resource Control Manager: Groups Online This monitor returns the number of online cluster resource groups on this node. Resources: Resource Failure This monitor returns the number of resource failures.

Resources: Resource Failure Access Violation This monitor returns the number of resource failures caused by access violation. Resources: Resource Failure Deadlock This monitor returns the number of resource failures caused by deadlock. Backup and Restore Functionality Problems This monitor returns the number of events that occur when: The backup operation for the cluster configuration data has been aborted because quorum for the cluster has not yet been achieved; The restore request for the cluster configuration data has failed during the "pre-restore" or "post-restore" stage.

Check for the following pre-conditions to make sure they have been met, and then retry the backup or restore operation: The cluster must achieve quorum. In other words, enough nodes must be running and communicating perhaps with a witness disk or witness file share, depending on the quorum configuration that the cluster has achieved a majority, that is, quorum.

The account used by the person performing the backup must be in the local Administrators group on each clustered server, and must be a domain account, or must have been delegated the equivalent authority. During a restore, the restore software must obtain exclusive access to the cluster configuration database on a given node. If other software has access open handles to the database , the restore cannot be performed.

Cluster Network Connectivity Problems This monitor returns the number of events that occur when: The Cluster network interface for some cluster node on a special network failed; The Cluster network is partitioned and some attached failover cluster nodes cannot communicate with each other over the network; The Cluster network is down; The Cluster IP address resource failed to come online; Attempting to use IPv4 for a special network adapter failed.

Cluster Service Startup Problems This monitor returns the number of events that occur when: The Cluster service suffered an unexpected fatal error; The Cluster service was halted due to incomplete connectivity with other cluster nodes; The Cluster service was halted to prevent an inconsistency within the failover cluster; The Cluster resource host subsystem RHS stopped unexpectedly; The Cluster resource either crashed or deadlocked; The Cluster service encountered an unexpected problem and will be shut down; The Cluster service has prevented itself from starting on this node.

This node does not have the latest copy of cluster configuration data. The membership engine detected that the arbitration process for the quorum device has stalled. Review events related to communication with the volume. Check storage and network configuration. Check Cluster Shared Volumes folder creation and permissions. Check communication between domain controllers and nodes. Cluster Storage Functionality Problems This monitor returns the number of events that occur when: The Cluster Physical Disk resource cannot be brought online because the associated disk could not be found; While the disk resource was being brought online, access to one or more volumes failed with an error; The file system for one or more partitions on the disk for the resource may be corrupt; The Cluster disk resource indicates corruption for specific volume; The Cluster disk resource contains an invalid mount point.

Confirm that the affected disk is available. Confirm that the mounted disk is configured according to the following guidelines: Clustered disks can only be mounted onto clustered disks not local disks ; The mounted disk and the disk it is mounted onto must be part of the same clustered service or application.

Cluster Witness Problems This monitor returns the number of events that occur when: The Cluster service failed to update the cluster configuration data on the witness resource due to resource inaccessibility; The Cluster service detected a problem with the witness resource; The File Share Witness resource failed a periodic health check; The File Share Witness resource failed to come online; The File Share Witness resource failed to arbitrate for the specific file share; The node failed to form a cluster because the witness was not accessible.

Configuration Availability Problems This monitor returns the number of events that occur when: The cluster configuration database could not be loaded or unloaded; The cluster service cannot start due to failed attempts to read configuration data.

Encrypted Settings for Cluster Resource Could not Applied This monitor returns the number of events when encrypted settings for a cluster resource could not be successfully applied to the container on this node. Event ID: Event ID: , File Share Resource Availability Problems This monitor returns the number of events that occur when: The Cluster File Share cannot be brought online because a file share could not be created; The retrieving of information for a specific share returned an error code; The retrieving of information for a specific share indicated that the share does not exist; The Creation of a file share failed due to an error; The Cluster file share resource has detected shared folder conflicts; The Cluster file server resource failed a health check because some of its shared folders were inaccessible.

Ensure that no two shared folders have the same share name. Check shared folder accessibility and the State of Server service. Generic Application Could not be Brought Online This monitor returns the number of events that occur when a generic application could not be brought online during an attempt to create the process due to; the application not being present on this node, an incorrect path name, or an incorrect binary name.

However, if Powershell or Cluster. This is not the name that your SQL clients will use to connect to the cluster; we will define that during the SQL Server cluster setup in a later step. As I mentioned earlier, if you create the cluster using the GUI, you are not given the opportunity to choose an IP address for the cluster.

Although the cluster will create properly, you will have a hard time connecting to the cluster until you fix this problem. To fix this problem, from one of the nodes run the following command to ensure the Cluster service is started on that node. Next we need to add the File Share Witness. On the 3rd server we provisioned as the FSW, create a folder and share it as shown below.

Once the share is created, run the Configure Cluster Quorum wizard on one of the cluster nodes and follow the steps illustrated below. We are almost ready to install DataKeeper. However, before we do that you need to create a Domain account and add it to the Local Administrators group on each of the SQL Server cluster instances. We will specify this account when we install DataKeeper. This is where we will specify the Domain account we added to each of the local Domain Administrators group.

Once DataKeeper is installed on each of the two cluster nodes you are ready to configure DataKeeper. NOTE — The most common error encountered in the following steps is security related, most often by pre-existing Azure Security groups blocking required ports.

Please refer to the SIOS documentation to ensure the servers can communicate over the required ports. If everything is configured properly, you should then see the following in the Server Overview report.

Complete the above steps for each of the volumes. NOTE — At this point the replicated volume is only accessible on the node that is currently hosting Available Storage. If you use a Named Instance you need to make sure you lock down the port that it listens on, and use that port later on when you configure the load balancer. Neither of those two requirements are covered in this guide, but if you require a Named Instance it will work if you do those two additional steps.

Go to the Data Directories tab and relocate data and log files. At the end of this guide we talk about relocating tempdb to a non-mirrored DataKeeper Volume for optimal performance. For now, just keep it on one of the clustered disks. Congratulations, you are almost done! In order for the ILB to function properly, you must run run the following command from one of the cluster nodes.

It may simple be a GUI refresh issue, so you can also try restarting the cluster GUI to verify the subnet mask was updated. After it runs successfully, take the resource offline and bring it back online for the changes to take effect.

The final step is to create the load balancer. Add just the two SQL Server instances to the backend pool. Does it matter what kind of resource is running on cluster, i. If you pick Shut down Cluster None of the servers will actually shut down. If you shut down Windows, the resources hosted on that server will be moved to another member of the cluster.

When that is complete, then the server will shut down normally. If you are ultimately shutting down all servers in a cluster, they will eventually accomplish the same thing. My recommendation if you really want to shut down all the servers in the cluster is to use Shut down Cluster That way all of the resources go down right away and you don't have to wait for them to hop around.

Either of those approaches you mention should work equally. I would opt for a command-line approach, since it is often useful to schedule such commands, rather than rely on human presence and intervention. Having said that, Microsoft's implementation of these two actions could be dramatically different, and that in an implementation detail they reserve to themselves as far as I know. So even if there is no difference between them today, odds are good that MS will make changes to one and not the other, or make different changes to each, so any answer would likely be time dependent.

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