Windows Server Failover Cluster Disk Witness Setup

shockoMS 176 Reputation points
2021-04-19T21:48:52.05+00:00

I have a Windows 2012 R2 failover cluster running a MSSQL 2014 cluster resource. It's a 2-node cluster with a disk [Q:] witness presented to the cluster from our SAN over fibre-channel. One thing I notice though is that this disk witness Q: is also a storage resource under the MSSQL cluster resource. Surely that's an incorrect configuration? My understanding is the disk witness should only be part of the core cluster resource and not assigned as storage to any sub resource?

Windows Server
Windows Server
A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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Windows Server Clustering
Windows Server Clustering
Windows Server: A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.Clustering: The grouping of multiple servers in a way that allows them to appear to be a single unit to client computers on a network. Clustering is a means of increasing network capacity, providing live backup in case one of the servers fails, and improving data security.
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  1. Xiaowei He 9,746 Reputation points
    2021-04-20T06:20:11.203+00:00

    Hi,

    Yes, Cluster witness disk shouldn't be assigned to any other cluster roles.

    Please reconfigure the cluster disk witness with a new shared disk.

    Thanks for your time!
    Best Regards,
    Anne

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