VMware : vSAN architecture components

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.