Common Cluster Mistakes – You can only use this disk Once #winserv   3 comments

Sometimes you see cluster configurations with the Next Next Done/finish method and yes this is fine but one day you need to fix things that happened during this quick configuration .

Like a 3 TB cluster quorum / witness disk, yes storage is cheap but never waste a good TB.

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When You create a cluster with only one disk and configured a shared witness disk then the only disk available will be used. If it is a 500 MB disk it will use this disk but if it is a 3TB disk it will use that disk. With multiple disks it will use the smallest disk.

Step 1 : create a 500MB LUN for usage as Quorum.

Step 2 : create a LUN as big as you want for storage or CSV.

Now when you try to configure the witness disk it will auto select the 500MB LUN.

Posted February 3, 2014 by Robert Smit [MVP] in Windows Server 2012 R2

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