VMware vSAN (Virtual Storage Area Network)

1. Hyper-Converged Infrastructure (HCI): Combine compute and storage resources into a single software-defined platform.

2. Software-Defined Storage: Abstract and pool storage resources from direct-attached storage devices across a cluster.

3. Distributed Architecture: Distribute data across hosts for high availability and fault tolerance.

4. Storage Policies: Define policies for performance, availability, and other requirements.

Before learning VMware vSAN, it's beneficial to have the following skills:

1. Virtualization: Understanding of virtualization concepts and VMware vSphere platform.

2. Storage Concepts: Familiarity with storage technologies such as RAID, NAS, and SAN.

3. Networking: Basic knowledge of networking concepts such as TCP/IP, VLANs, and routing.

4. VMware vSphere: Proficiency in managing VMware vSphere environments and virtual machines.

By learning VMware vSAN, you gain the following skills:

1. Software-Defined Storage: Understanding of software-defined storage concepts and implementation with vSAN.

2. Hyper-Converged Infrastructure (HCI): Proficiency in building and managing hyper-converged infrastructure solutions.

3. vSphere Integration: Ability to integrate and manage vSAN within the VMware vSphere ecosystem.

4. Storage Policies: Skill in defining and managing storage policies for performance, availability, and other requirements.