Storage Spaces 2-way mirror Vanished! RAID 1

P

Pone7

Setup:

  • Windows 10 Pro updated to 20H2
  • 1x 600GB HDD with OS (Win 10 Pro, updated to 20H2) - all fine
  • 2x 4TB HDD in RAID 1 two-way mirror using Windows Storage Space -ERROR

All worked fine for 8 months, but while moving system to a new case, all of a sudden my two-way mirror drive has VANISHED & storage pool gives an error saying:

"Drive or storage pool issues"


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DiskManagement shows that the "OK" disk as Storage Pool, Healthy (Storage Spaces Protective Partition) and the other disk doesn't show at all.


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Both 4TB show in Bios

Both 4TB drives show in Device Manager.
CrystalDiskInfo shows all drives to be in good condition.

In an Admin PowerShell prompt I get the following info:


PS C:\WINDOWS\system32> get-disk

Number Friendly Name Serial Number HealthStatus OperationalStatus Total Size Partition
Style
------ ------------- ------------- ------------ ----------------- ---------- ----------
2 HITACHI HUS724040ALE640 PBG594ZS Healthy Online 3.64 TB GPT
0 TOSHIBA MK6475GSX 62F5YEAKF Healthy Online 596.17 GB GPT



PS C:\WINDOWS\system32> get-physicaldisk

Number FriendlyName SerialNumber MediaType CanPool OperationalStatus HealthStatus Usage Size
------ ------------ ------------ --------- ------- ----------------- ------------ ----- ----
0 TOSHIBA MK6475GSX 62F5YEAKF HDD False OK Healthy Auto-Select 596.17 GB
1 HITACHI HUS724040ALE640 PN2334PBJ5PJST HDD False OK Healthy Auto-Select 3.64 TB
HGST HUS724040ALA640 PN2334PBJ5PJST HDD False Lost Communication Warning Auto-Select 3.64 TB




PS C:\WINDOWS\system32> get-storagepool

FriendlyName OperationalStatus HealthStatus IsPrimordial IsReadOnly Size AllocatedSize
------------ ----------------- ------------ ------------ ---------- ---- -------------
Primordial OK Healthy True False 4.22 TB 3.64 TB
Storage pool Degraded Warning False False 7.28 TB 5.09 TB



Possible cause:
Whilst moving the system to a new case and experimenting with cable routing, I likely hibernated the system and swapped the SATA port that the drives plug into. I'm not sure if this has confused Storage Spaces about the pool?



Any way to recover this, as it suggests that the pool is "ok"?


Many thanks

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