Docs: N+2 Redundancy (RF3) Configuration Guide

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Summary

Documentation is needed for the new N+2 (RF3) vSAN redundancy feature introduced in 26.1.2, including configuration steps, requirements, and whether it can be enabled on existing systems post-install.

Type

How-to Guide

Suggested Content

• Audience: VergeOS administrators and support engineers
• Prerequisites: Understanding of vSAN tiers and existing N+1 redundancy
• Key sections:
  • What is RF3 / N+2 redundancy and how it differs from standard N+1
  • Minimum node count and hardware requirements for RF3
  • How to enable RF3 during a fresh install
  • Whether RF3 can be enabled on existing vSAN tiers post-install (and if so, the procedure)
  • Storage capacity overhead / impact of RF3 vs N+1
  • Monitoring RF3 status and health
  • Limitations or known considerations

Context

Requested via support interaction. This has come up 2-3 times already from customers asking whether RF3 settings are configurable after initial deployment. Currently the only documentation is a brief mention in the 26.1 release notes — there is no dedicated guide or KB article covering setup, requirements, or post-install configurability.

Release notes reference: https://docs.verge.io/release-notes/26-1-release-notes/