The shared storage design includes design decisions for vSAN storage and NFS storage.

Well-designed shared storage provides the basis for an SDDC and has the following benefits.

Prevents unauthorized access to business data

Protects data from hardware and software failures

Protects data from malicious or accidental corruption

Follow these guidelines when designing shared storage for your environment.

Optimize the storage design to meet the diverse needs of applications, services, administrators, and users.

Strategically align business applications and the storage infrastructure to reduce costs, boost performance, improve availability, provide security, and enhance functionality.

Provide multiple tiers of storage to match application data access to application requirements. 

Design each tier of storage with different performance, capacity, and availability characteristics. Because not every application requires expensive, high-performance, highly available storage, designing different storage tiers reduces cost.