Definition
Storage with vSAN, or virtual SAN, is a software-defined storage solution that pools direct attached storage devices from multiple servers into a single shared datastore. It abstracts the physical storage hardware, presenting it as a unified resource accessible by virtual machines. This approach simplifies storage management and enhances scalability by allowing administrators to add capacity incrementally. vSAN operates by creating a distributed object-based datastore across server nodes, distributing data and metadata for resilience and performance. It is crucial for modern data centers seeking agility and cost efficiency in their storage infrastructure. For instance, a company can use vSAN to consolidate server disks into a shared pool, eliminating the need for a dedicated SAN array. This differs from traditional SANs which rely on dedicated hardware controllers and Fibre Channel or iSCSI networks. Understanding vSAN is beneficial for roles preparing for cloud infrastructure certifications like AWS Certified Solutions Architect.