There are two options for witness disks — disk witness and file share witness. Dell recommends you to use file share witness because a continuously available SMB share can be created on the SOFS cluster to host the witness disk. You can create the file-share witness disk on a small 3 GB, Two-way mirror VD without storage tiers.
Node and disk majority
Node and file share majority
Run the following PowerShell command to create the cluster quorum disk.
Set-ClusterQuorum <Mode> <PathToResource>
For example,
A 3x3 configuration with three Dell PowerEdge R730 storage nodes. Setting quorum mode to node majority with no file share or disk witness on cluster named MYCLUSTER.
Set-ClusterQuorum –NodeMajority –Cluster MYCLUSTER
For example,
A 4x4 configuration with four Dell PowerEdge R630 storage nodes. Setting quorum mode to node and file share majority with a 1 GB VD setup as a SOFS file share. The cluster is named MYCLUSTER and file share is named FileShareWitness.
Set-ClusterQuorum -NodeAndFileShareMajority "\\MYCLUSTER\FileShareWitness"