Dell PowerEdge R940 385TB Data Warehouse Fast Track Reference Architecture for - Page 22

Additional considerations for the highly available reference architecture 8 Additional considerations for the highly available reference architecture The highly available (HA) reference architecture leverages Windows Failover Clustering to achieve high availability. When configuring a Windows failover cluster, there are additional storage considerations: • The recommended quorum configuration is to allow all cluster nodes to have quorum votes and use a disk witness. An additional volume needs to be created and configured as the disk witness. Dell EMC recommends using a 2GB volume for the disk witness. For more information on quorum and voting configurations in a failover cluster, see the Microsoft article Configure and manage quorum. • All volumes need to be mapped to each node of the cluster. It is recommended to use a cluster server object in the SC Series array when mapping volumes to the cluster. • All volumes need to be configured as a cluster resource and added to the SQL Server cluster resource group. 22 385TB Data Warehouse Fast Track Reference Architecture for Microsoft SQL Server 2017 using Dell EMC PowerEdge R940 and SC9000 | 4032-RA-SQL