The main components of vSAN architecture are the following:

• Cluster-Level Object Manager (CLOM)
• Distributed Object Manager (DOM)
• Log Structured Object Manager (LSOM)
• Cluster Membership, Monitoring, and Directory Services (CMMDS)
• Reliable Datagram Transport (RDT)

The vSAN cluster can be compared to a house building where each component has a specific role.

The CLOM process runs on every vSAN node:

• • • • • • • validates that objects can be created based on policies and available resources.