How to Set Up Quorum in Vmware
A quorum is a VMware node configuration that allows multiple clusters to share the same hard drive. This means that if you have three different virtual operating systems running on a virtual machine running different server processes, they will be able to read the same log files and update the same virtual hard drive. A quorum configuration cannot exist with less than two individual machines, as every update to the disk requires a consensus between the connected devices. If the quorum ever falls below two connected units, the last unit will not be able to write to its disk until it has been reconnected to the larger quorum. You can set up a VMware Quorum with the "mkqdisk" utility.
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Instructions
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Create a new shared volume on the host computer. Follow the instructions for the operating system to create a new disk volume or partition.
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Open a new Command Prompt or Terminal window. This process differs between operating systems, but Windows users can press the "Windows" key and then press "R" and type "cmd.exe" to open the Command Prompt.
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Enter the command "mkqdisk -c <drive> -l <name>". Replace "Drive" with the letter or UNIX path to the drive's mount point, such as "/dev/sdb2." Replace "name" with the name you would like to identify the drive as in the quorum.
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Open a Command Prompt or Terminal on all of the VMware guest systems. Enter the command "mkqdisk --joincluster <name>". Replace "name" with the name of the host's shared volume, specified in the "name" parameter.
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Restart the "CMAN" service from the Command Prompt on all three guest systems to establish the quorum link. Type "service cman restart" on both Windows and most Linux platforms. Consult the operating system's service information if this command reports that it is unknown or unavailable.
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