Windows 10: Two way mirror storage space with 4 drives - correct setup Windows 10

I have already setup one pool with 4 drives ( 2 x 3tb and 2 x 500gb) and using them as one storage space (one drive letter) with two way mirror. Everything works fine but if I disconnect both the 500gb drive and the 3tb drive then the virtual drive doesnt work. which means I have one drive fault tollerance when I should have two (one of the 3tb drives and one of the 500gb drives. I think I have setup the pool wrong. So please confirm... If I setup two sepperate pools (one with 2 equal drives, pool 1 with two way mirror 2x3tb drives and pool 2 with two way mirror) and two different drive letters then in theory I loos one drive from each pool then all is ok??? Will the same scenario work if I leave all 4 drives in the same pool but create different virtual disks (drive E and F, the E with pair of 3tb and the F with pair of 500gb) will have the same result? I am runing latest win 10 pro

:)

 

Simple Storage Space to Two-Way MIrroring possible?

I currently have a 4 drives setup as a Simple storage space. I recently got 4 more drives and I was wondering if I could enable two-way mirroring without having to reformat everything?

 

Windows Storage Spaces -- Replacing a Failed Disk [Two-way Mirror]

Thought I'd pass along some testing I recently performed with Microsoft's Storage Spaces on Windows 10. I wanted to see the process of replacing a 'failed' drive in a Two-way mirror. The good news is that it's pretty simple.

I started out with a Windows 10 Home Desktop with an existing Two-Way mirror. The Desktop computer was configured with three drives -- A single 500 GB SSD hosting the operating system and two identical 1 TB SSDs hosting my data on a Microsoft Storage Spaces Two-way mirror.

In looking at Control Panel; Storage Spaces... This was the original set-up...





From here I simulated a disk 'failure' by disconnecting one of my 1 TB SSD's [SamsungSSD2] from my Desktop's motherboard SATA port. This created a 'Notification' about the Storage Space





Although now 'missing' SSD2, the Storage Space could still be accessed normally thru Explorer and you could read/write files as needed without any problems. No changes were evident in Disk Management either.

Now on to installing a replacement drive. In my case a duplicate SSD which I had available for this 'test'.

In looking at Control Panel; Storage Spaces you can see that the Desktop computer was operating with a 'Reduced Resiliency' Two-way mirror Storage Space. With the specific problem being 'SamsungSSD2'





At this point I attached the replacement SSD to the computer followed by selecting 'Add drives' in Manage Storage Spaces





Storage Spaces automatically found my replacement drive which I added to the Pool. Manage Storage Spaces reflected the increased Pool capacity due to the added drive which it recognized with a status of 'OK'









Need to clean-up the configuration by deleting the failed SamsungSSD2 disk from the Two-way mirror Storage Space.





Manage Storage Spaces is now showing the 'new' configuration with SamsungSSD1 and the replacement 'Samsung SSD 860 EVO 1TB' Physical Drives





Now we're off and running with a repaired Two-way mirror and our replacement drive

 

Storage Spaces Mirror 2 Drives?

Actually... no. If you plug out a mirror from a Storage Spaces mirror and plug into another Windows 10 machine, it will first warn you that a Storage Space is in trouble, but seconds later your plugged mirror is fully available. I just tried.
Interesting enough, you can keep working and modifying your now "reduced resiliency" space. When you plug the missing drive back to your real Storage Spaces machine it gets in sync and back to normal.

I came here looking for some more experienced users having tried this before, but I see that it's a bit crazy and no one has tried it. So far, I'm starting to believe this is a great way to have an always updated roaming media storage.
I wonder what would happen if the roaming media gets modified, it would be overwritten once back in the mirror?