I’ve got a test lab set up so we can learn some fundamentals before jumping in. The goal is to break things, or try to break things and learn limits.
6x towers, 240GB (flash), 256GB (Capacity) per system. 1.5TB total to the vSAN. I’d created a dummy file on a 750GB vmdk in a virtual machine, but it apparently didn’t actually increase space usage on the vSAN, as it was essentially an empty file. I don’t remember setting it to Thin for the system, although I did for the VCSA itself. Insteal, I filled it by copying over data from a datastore I know had 13TB of files on it, so it wouldn’t compress.
I planned on it filling up to the 750GB mark, and it stopping as it’d see the drive as full, but when I came in today, it’s used up 1.36TB. I don’t understand how, as that’s probably 80% larger than the max I’d set, and now I can’t start up the machine without it crashing.
Is there some way to fix this?
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