Great VSAN 6.6 Network Primer Video!
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
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.