Yes — you
can make this work, but the cleanest path is to
wipe the old Storage Spaces metadata from SSD1 and SSD2 first and then rebuild the backup storage from scratch.
Right now both disks still contain remnants of the old Storage Spaces pool:
- SSD1 has an
813.83 GB Storage Spaces Protective Partition
- SSD2 shows a strange 1740.87 GB offline size, which is classic leftover pooled-disk metadata behavior
That means Windows is still seeing parts of the old virtual disk/pool, not two normal 1 TB SSDs.
My recommendation
Best practice
- Keep the current OS install on C: if it's already good.
- Delete the old Storage Spaces remnants on both SSDs.
- Rebuild your backup storage cleanly using:
- the free space on SSD1
- all of SSD2
- Only after that, attach the external 1 TB drive.
Important warning
If there is
any data left in the old storage pool that you still need, stop before wiping anything.
If not, then wiping the old pool metadata is the right move.
What I would do
Option A — Recommended
- Keep the 120 GB
C: partition
- Wipe only:
- the
813.83 GB Storage Spaces Protective Partition on Disk 0
- all old metadata on Disk 2
- Then create a new single backup target
This is the least disruptive option.
Option B — Full clean restart
- Wipe both SSDs completely
- Reinstall WSE 2016 from scratch
- Recreate OS + backup storage from zero
This is cleaner conceptually, but unnecessary
if your current OS install is stable.
GUI-first plan
Step 1: Make sure the OS install is healthy
Before touching storage:
- Boot the server normally.
- Confirm:
C: is stable
- Dashboard opens
- networking works
- Windows Updates/install status is normal
- If all of that is fine, proceed.
If the OS itself is questionable, then go to
Option B and start over fully.
Step 2: Remove the old Storage Spaces parts
Because Disk Management is not good at clearing old pooled disks, use
PowerShell or DiskPart.
Safer approach
You want to clear only the non-OS areas.
For Disk 0
You
must not wipe the whole disk, because it contains:
You only want to remove the old Storage Spaces partition.
For Disk 2
You can usually wipe the whole disk.
Step 3: Clean Disk 2 completely
Open
Command Prompt as Administrator and run:
Code:
diskpart
list disk
select disk 2
attributes disk clear readonly
online disk
clean
convert gpt
exit
Expected result
- Disk 2 becomes a normal empty 1 TB disk
- In Disk Management it should show as Unallocated
- It should no longer show the weird 1740.87 GB value
Step 4: Remove the protective partition from Disk 0
Because Disk 0 contains the OS, be careful.
In
Admin Command Prompt:
Code:
diskpart
list disk
select disk 0
list partition
Identify the large
813.83 GB partition.
Then:
Code:
select partition <number>
delete partition override
exit
Expected result
- Disk 0 keeps:
- The 813.83 GB area becomes Unallocated
Do not delete the wrong partition.
Step 5: Decide how to use the space
You then have two reasonable choices.
Choice 1 — Simple and recommended
Use
Disk 2 only for client backups.
Why:
- Keeps OS disk and backup disk separate
- Easier recovery later
- Fewer Storage Spaces complications
Choice 2 — Larger pool
Use:
- free space on Disk 0
- all of Disk 2
This gives more total backup space, but it mixes OS and backup storage on the same physical disk, which is less ideal.
For a home WSE setup, I would strongly favor:
- Disk 0 = OS only
- Disk 2 = backups only
- External 1 TB = extra storage or secondary backup
Step 6: If you want the cleanest layout
After deleting the 813.83 GB partition on Disk 0, I would actually leave it unused for now unless you truly need it.
That gives you:
- Disk 0
- System Reserved
C:
- unused space
- Disk 2
This is much simpler than rebuilding a two-disk Storage Space.
My practical recommendation
Given your history with this server, I would do this:
- Keep current C: install
- Delete old Storage Spaces partition from Disk 0
- Fully clean Disk 2
- Use Disk 2 alone for Client Computer Backups
- Later attach the external 1 TB drive for:
- server folders
- exported backups
- secondary copy of critical files
That avoids repeating the exact Storage Spaces confusion you've already hit multiple times.
When I would start over completely
I would only wipe both SSDs and reinstall from zero if:
- the current WSE install is unstable
- Dashboard/services are broken
- connector install is failing
- backup configuration is badly corrupted
- you want a completely clean long-term setup
If the OS is working now,
I would not reformat SSD1 fully.
One correction to note
Your screenshot shows
Disk 2 as offline and 1740.87 GB, which strongly suggests the system still sees pooled metadata, not a normal disk. That is not something I would try to "reuse as-is." It should be cleaned first.
Bottom line
No, you do not need to wipe everything and start over.
Yes, you should clear the old Storage Spaces data from both disks before proceeding.
Best path:
- Keep
C:
- Delete the protective partition on Disk 0
- Clean Disk 2 fully
- Use Disk 2 as your backup disk
- Add the external drive only after the server is stable
If you want, I can give you a
very careful exact step-by-step for:
- identifying the correct partition number on Disk 0
- cleaning Disk 2 safely
- then setting up client backups in WSE 2016 using GUI only.