WinServer2016 can't parse software raid from 1 logical to 2 physical?

Question

Windows Server

Good day!
It's a total mess!
There is my training stand. I reinstalled from 2012 to 2016, and already wanted to raise the roles ...
As I suddenly noticed, earlier there was a server 2012 there was a software raid, I assembled it from 2 physical hdd (500) into 1 (logical) - 1tb
Now, after installing a new Windows, there is a disk logical for 1 TB, I wanted to delete it and collect it in a mirror.
But! I can not . . .
Made a screenshot. Even I can’t catch up with what the hell is going

on, then I made it offline and again I can’t delete it!?

I made mbr and gpt dynamic - yes, I don’t see the logic and there’s no sense either - there is no bad line (command) DELETE

Answer 1

Detach doesn't work. says it can't find the file, well, you see for yourself)) and there is no way to set the path there, even
went into the disk of the desks from there I try to delete the disk
, two options come out:
NOERR For scripting only. When an error is encountered, DiskPart
continues to process commands as if the error did not occur.
Without the NOERR parameter, an error causes DiskPart to exit
with an error code.
OVERRIDE
Now I'm trying to delete partition:
says file not found
list volume - not in the list
list vdisk - empty!
As you can see from all that is happening, the attached virtual disk file is missing
and FIG knows where it disappeared)
Does it really turn out that the output is such that it is necessary to disassemble and remove 1 disk, make it a simple partition and do the same with the second disk?