Dell Technologies assumes that the management services required for the operating system deployment and cluster configuration are present in the existing infrastructure. An internet connection is required to license and register the cluster with Azure. Because Microsoft Azure Stack HCI operating system is a Server Core operating system, you require a system that supports Desktop Experience to access Failover Cluster Manager and Windows Admin Center. For more information, see the Windows Admin Center FAQ.
|Active Directory Sites & Subnets||Configure two sites and their corresponding subnets in Active Directory so that the correct sites appear on Failover Cluster Manager on configuration of stretched clusters.
Configure Fault domains for each cluster if the IP subnets are the same across both sites.
|Witness||Customers can choose to have a File Share witness either at a tertiary site or on Azure Cloud.|
Storage-Replica with PowerShell Management Tools on all nodes
File server role
The following requirements apply:
|Windows Admin Center Node||Windows features required:
|Number of nodes supported||
Minimum: 4 (2 Nodes per site)
Maximum: 16 (8 Nodes Per Site)
|Number of drives supported||Minimum of 4 drives per node. Both sites should have the same capacity and number of drives. Dell Technologies currently supports only an All-Flash configuration for stretched clusters.|
|Tuning of cluster heartbeats||
(get-cluster).SameSubnetThreshold = 10
(get-cluster).CrossSubnetThreshold = 20
|SDN/VM Network||SDN on multi-site clusters is not supported at this time.|
For the maximum supported hardware configuration, see Review maximum supported hardware specifications.