I deal with them regularly. They’re friendly and “helpful”, but they’re deliberately kept arms length from the Azure dev teams.

This is a recipe for uselessness. If they can’t force the devs to do things properly, it won’t get done.

yeah, i find the whole azure support lacking. We have this server with 20+ disks, some in storage pool and now I have no way mapping them out to see which logical drive maps to which vm disk. the support after 3 months of back and forth just gave up and closed it citing known issue without official documentation...

That's actually not that hard. The LUN numbers map through 1:1 to the guest OS. So the external LUN #1 is the internal LUN #1, etc...

Then you can use the Windows OS storage pool commands to figure out the internal mapping.

However, you do have a point -- the disk WWN or GUID or something properly unique ought be available via the Portal or the ARM REST API! That's far easier to automate robustly.

I thought that's how too, but maybe I got my mental model messed up.

Will give it a proper visit, the last time I tried to downgrade some ssd to hdd resulted in windows boot loop. fun times, had to take a snapshot then fiddle it's registry in another vm so it'd use the last known working registry to get it back up.