@phlipelder said in I think I am missing something about Hyper-V....?:
"No one is using it in production." <-- False.
figure cited is the number of currently active clusters reporting anonymized census-level telemetry, excluding internal Microsoft deployments and those that are obviously not production, such as clusters that exist for less than 7 days (e.g. demo environments) or single-node Azure Stack Development Kits. Clusters which cannot or do not report telemetry are also not included.
When you have 10K clusters, and your competitors have (Singular) customers closing in on that many clusters that's noise. VMware is reporting over 14K Customers.
The industry standard for reporting product usage is reporting total customer count. Microsoft either knows is embarrassing low, or outright doesn't have the information. My lab which includes a SSD cluster (which is nested on top of vSAN) qualifies as "production" by this definition. Hell if Starwind or Veeams QA lab is leaving stuff on over 7 days he's a production customer!
For comparison VMware and Nutanix both state the number of paying customers they have on earnings calls. This is audited, and making a false statement here could incur jail time. Since both sell discrete software SKU's for their HCI product (and can track generation of licensing keys in the portal) they can give real and actually specific numbers. VMware's phone home tracking (CEIP) can at least tell if a licensing key is a production key vs. a demo or lab license key. It also can tell if the deployment is nested (is the hardware detected as "VMware or some sort of paravirtual device) making it easy to filter and identify. Microsoft including all clusters more than 7 days old that were not on their network and include non-licensed clusters is highly dubious.
When a vendor uses odd qualifications to report customer adoption that are non-standard and use vague criteria you assume the reality doesn't smell like roses.