Microsoft Windows Azure Pack based cloud solution support both block based storage and file based storage configured with VMM for storing virtual machines and other cloud IaaS resources.
Storage requirements and solutions are likely to be different for private clouds and service provider clouds. While it is common to see traditional enterprise class SAN storage solutions in private clouds, software defined storage solutions on commodity hardware are also in use for both private and service provider cloud solution. VMM supports a wide range of storage solution integration for automated provisioning and management solving storage challenges for both private clouds and service provider clouds.
In the case of block based storage, VMM can take advantage of Storage Area Network (SAN) using Fibre Channel, iSCSI and SAS storage connectivity solutions for storing virtual machines and resources.