Mscs in windows 2003

HA is stateless clustering, the VM will be shutdown and started on another node. So the service will have down time for sure. Not yet available, should be available today according to the vmware website a week ago… so just a matter of time.

Support is similar to ESX Server 3. Are there any particular reasons you try to avoid mscs clustering of Exchange, for example in a virtual environment? Are there any significant technical drawbacks? This make not easy to push the solution to customers even if it works…how would you reply to this?

Share it: Tweet. Operation: After the cluster service is started up, all resources including the quorum resource remain offline. Users can then manually try to bring the quorum resource online and monitor the cluster log entries as well as the new event log entries and attempt to diagnose any problems with the quorum resource.

If the quorum log file is found to be in proper order, this switch has no effect. Requirements : Typically, only one node is started up by using this switch, and this switch is used alone. It must be used only by experienced users who understand the consequences of using information that is potentially out of date, to create a new quorum log file.

Usage scenarios : This switch must be used only when the Cluster service fails to start up on a Windows or later machine because of a missing or corrupted quorum log Quolog. Windows NT 4. This functionality was added in Windows to give more control over the start of the Cluster service. The default behavior is to create a new log file at startup if the old one is missing or corrupt.

The syntax is as follows:. Function : Helps you to debug the resource monitor process and, therefore, the resource dynamic-link libraries DLLs that are loaded by the resource monitor. You can use any standard Windows-based debugger. Requirements : Can only be used when the cluster service is started from the command prompt and when using the debug switch. There's no equivalent registry setting that can be used when Cluster service is run as a service.

Debugger must be available for attaching to the resource monitor when it starts up. Usage scenarios : Developers can use this switch to debug the resource monitor process and their custom resource DLLs. This option is extremely useful if a bug in a resource DLL causes the resource monitor process to quit unexpectedly soon after it's started up by the Cluster service and before users can manually attach a debugger to the resource monitor process.

Operation : Just before the resource monitor process is started up, the Cluster service process waits with a message Waiting for debugger to connect to the resmon process X ,where X is the Process ID PID of the resource monitor process.

The Cluster service does this waiting for all resource monitor processes created by it. After the user attaches a debugger to the resource monitor process, and the resource monitor process starts up, the Cluster service continues with its initialization. Function : The norepevtlogging switch prevents replication of those events recorded in the event log.

This switch is useful in reducing the amount of information displayed in the command window by filtering out events already recorded in the event log. Event log replication is a feature that was added in Windows Usage scenarios : This switch is used to prevent replication of the event logs. If there's a large number of event log entries, the Cluster service will replicate these, and log these to the cluster.

This can cause the cluster. The switch can also be used to start the Cluster service and log those events that aren't recorded in the event log to a local file, Debugnorep.

Operation : The norepevtlogging command can be set as a start parameter when starting the Cluster service from the Computer Management console.

This command prevents the node that was started with this switch from replicating its information to other nodes, but it will still receive information from other nodes that were started normally.

Function : Turns off all logging of the cluster registry changes to the quorum disk. Registry check pointing doesn't affect other resources. Requirements : This switch must be used only in diagnosis mode to diagnose problems with the quorum log file Quolog. If one node is started up by using this switch, any other node must also be started up by using this switch. Typically, this switch is used on one node alone.

Usage scenarios : Use this switch when the quorum log file or checkpoint files become corrupted and you want to manually replace these files with backup copies. Operation : The Cluster service completely bypasses the logging functionality in this case.

When run in this mode, "partition-in-time" scenarios can occur. If this is the case, cluster node registry entries can fall out of synchronization, and new changes can be lost.

You must be logged in to post a comment. This site uses Akismet to reduce spam. Learn how your comment data is processed. As newer clustering technologies come along, I see the requirement for a failover cluster instance to disappear, this is already happening with Exchange DAG and SQL AAG as the nodes replicate between themselves which mitigates the need for a shared disk between the nodes One question I do get asked is how we support Oracle RAC on Virtual SAN as that uses shared disks also??

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