The following link provides more information about Storage Spaces Direct: Storage Spaces Direct overview https://learn.microsoft.com/en-us/azure-stack/hci/concepts/quorum https://learn.microsoft.com/en-us/azure-stack/hci/deploy/register-with-azure https://learn.microsoft.com/en-us/azure-stack/hci/manage/witness https://learn.microsoft.com/en-us/windows-server/failover-clustering/file-share-witness#file-share-witness-requirements https://learn.microsoft.com/en-us/azure-stack/hci/deploy/network-atc?tabs=22H2