VMware vSAN for ROBO Two Node 10 GbE direct-connect support

vSAN ROBO 2-node 10GbE direct/cross connect is now officially supported in vSAN 6.5 release as well as vSphere 6.0 patch#04.

It solves various problems for ROBO solutions –

  • High speed switching is not needed

  • Reduced complexity

  • Reduced Opex & Capex

  • Granularly scalable capacity, compute or performance in same model

  • Single upgrade/maintenance procedure

How?

  • Uses any 2 vSAN ready nodes

  • Connect 10G interface of 2 nodes directly using crossover cables for vSAN traffic & vMotion

  • Connect 1G interface on ESXi hosts to TOR switch

  • Metadata traffic meant for vSAN Witness appliance sent via management vmk0 interface

Advantages –

  • Extension of VSAN Stretched Cluster solution

  • Each of the nodes will be in a Fault Domain (FD)

  • One witness node per cluster/ROBO site

  • Witness node is an ESXi VM

  • Zero data loss

  • Automatic Failover

  • ALL sites managed centrally by one vCenter

  • Patching and software upgrades performed centrally through vCenter

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