Noob in need of help: How to add new drive into a Tiered Mirrored Storage Space on Windows 10, and then extend the storage pool?

[smokeweedeveryday]

I made a tiered & mirrored storage space with the powershell method on w10 pro x64 some time ago, but I just got a new 8tb wd red drive for cheap as a black friday deal. I have 3 vms running and all are storing crucial data that I can't lose, totalling 28TB, and its way too large to backup as i don't even have any drives totalling that size.

I really want to add in this new 8tb drive into my setup, but i'm not sure if I should do it via the GUI, since I created the storage space via powershell, I assume i'll have to do it via powershell?

I tried googling but did not find much help, I was wondering if anyone has a guide handy on how to add a new drive, and then extend the storage space capacity of a tiered mirrored storage space in powershell?

after doing this aswell, I will need to resize the size of my virtual hard disk, which I assume will be the most difficult, because I made it with VHDxtool (making it direct using hyperv takes way too long, takes days/weeks to just make a 20tb volume).

any help is appreciated :) thank you very much

[Electronics Wizardy]

You can just extent the storage space via powershell, using add-physicaldisk

 

THen you just make the virtual disk bigger, but making the slow tier bigger.

 

Then expand the partition.

 

But really make a backup, there are lots of things that can kill all the data in the pool

 

 

[smokeweedeveryday]

thank you kind sir