Great VSAN 6.6 Network Primer Video!

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At VMworld 2017 Cormac Hogan and Andreas Scherr did a great job going over the basics and gotchas around VSAN 6.6 Networking. Additionally, towards the end of the video they went through a Demo on performance and talked about the different VSAN Network topologies. The video is about an hour long and I know finding the time to watch it all can be hard sometimes. However, I took the time to breakdown the video and I listed when each topic started at. (just incase you want to jump to a specific topic of interest)

What I found beneficial was the information around the Network Unicast and vCenter Server new role with VSAN host tracking. Both topics are well work a look and it starts @19:22 in the video.

Here is the link to: VMworld 2017 – STO1193BE – Closer Look at VMware vSAN Networking and Configuration Considerations

https://www.youtube.com/watch?v=h-Ad4OSzS1Y

Here is the topic breakdown if you want to go to a specific section.

  • @3:42     – Major Component overview
  • @5:09    — Ports and Firewall
    • Encryption need 3rd Party KMS provider
  • @6:54    — IPv6
    • Don’t rung IPv6 and IPv4 mixed mode, okay to run to migrate but not run over a long time
  • @7:57    – Min NIC Requirements
    • Great chart on min / Max, see attached screen shot
  • @10:00    – Discussion around vSS vs vDS
    • Major difference is vDS can use lag groups
  • @13:17    – Network IO Control with vDS
    • Can help with vMotion traffic over whelming VSAN track
  • @14:17 – NIC Teaming and Failover Options
    • Load balancing options are a bit weak
    • LAG tends to be the best for load balancing (vDS and Physical Switch config needed)
  • @15:55 – Multicast
  • @19:22 – Unicast
    • vCenter Server now tracks who is in the cluster and what core info
  • @22:15 – Upgrade / Mixed Cluster Considerations with Unicast
    • Great chart around upgrading to vSAN 6.6
  • @22:24 – Considerations for DHCP
    • Not a good idea to run DHCP
  • @26:22 – Unicast CLI Commands
  • @27:25 – NIC Teaming and Load Balancing
  • @28:07 – NIC Teaming Pros/Cons
  • @33:58    – Supported Network Topologies
  • @36:06 – Layer2, Single site, Single Rack
  • @36:55 – Layer2, Single Site, Multi Rack (pre-VSAN-6.6)
  • @37:51 – Layer2, Single Site, Multi Rack VSAN 6.6 and later Unicast
  • @38:38 – Stretch Cluster (SC) L2 Data, L3 Witness
  • @39:37 – SC Why not L2 only traffic?
  • @41:15 – 2 Node Robo
  • @42:08 – 2 Node Direct Connect and Witness Traffic Separation
  • @43:57 – VSAN and Network Performance (General Concept)
  • @46:46 – Host Network Performance
  • @48:05 – Network Latency Demo

If you like my ‘no-nonsense’ blog articles that get straight to the point… then post a comment or let me know… Else, I’ll start writing boring blog content.

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