Not sure if anyone has run across this in VSAN 6.2, but essentially the Capacity Overview portlet in the web client is totally whacked out and not displaying utilized space properly. All used space it claims is just overhead even though there are multiple VMs running just fine on it, and all health checks pass except for driver/controller firmware compatibility. This was upgraded from VSAN 6.1, and when this was noticed, VSAN was wiped, turned off, and rebuilt yet still displays this odd issue.
Anyone seen this?
How much space are your VMs supposed to be consuming?
Also how large are your SSD caches? If they're large, maybe your VM is purely residing in cache and hasn't been destaged to capacity disk and the capacity overview isn't factoring SSD cache storage. Just a theory, I don't actually know how the capacity overview calculates things.