The HDP Standard offering enables you to select various Azure Virtual Machines (VMs). See Azure Windows Virtual Machines Documentation for information regarding the types of Azure Virtual Machines.

Virtual Machines vary in number of cores, processor speeds, cache types, and the ability to be used with premium storage. When setting up the HDP Standard offering, you can selected an A-, D-, or DS-Series machine. The smallest non-high availability cluster size you can create with the offering is six machines (three masters nodes and three worker/slave nodes). When enabling High Availability (HA), you need five master nodes. For additional information see the Typical Hadoop Cluster section of the Cluster Planning Guide.

	Note
	The Azure Resource Manager's default number of cores is 20, and is not enough to deploy the HDP Standard offering. You need to request additional cores in advance. For more information regarding Azure limits see Azure subscription and service limitations, quotas, and constraints .

By default, the offering suggests to use D-Series machines for Masters and DS-Series for Slaves.