Windows 11 Detects AL SSD as 30 TB in WMI but DiskPart Shows 0 Bytes

Question

Windows 11 Detects AL SSD as 30 TB in WMI but DiskPart Shows 0 Bytes

Armando Sri Ervando 0

Hello Microsoft Community,

I need technical assistance recovering an external USB SSD identified as AL SSD USB Device.

The device reports approximately 30 TB of capacity through Windows WMI and the Storage Provider, but Windows Disk Management and DiskPart cannot access its capacity consistently.

System information

Operating system: Windows 11 (build 26100.1150)

PowerShell: Windows PowerShell 5.1

Device model: AL SSD USB Device

USB VID: 048D

USB PID: 1234

Firmware revision: 5.00

USB connection: USB Mass Storage

Reported logical sector size: 4096 bytes

Observed symptoms

Win32_DiskDrive reports:

Model: AL SSD USB Device

  Size: 31,457,221,447,680 bytes
  
     Status: OK
     
     Get-PhysicalDisk reports:
     
        Manufacturer: AL
        
           Model: SSD
           
              Size: 31,457,280,000,000 bytes
              
                 OperationalStatus: OK
                 
                    HealthStatus: Healthy
                    
                    Get-Disk does not consistently enumerate the AL SSD.
                    
                    DiskPart identifies the device as Disk 3, but reports:
                    
                       Status: Online
                       
                          Size: 0 B
                          
                             No volumes
                             
                             The device previously appeared as an exFAT volume labelled AREL_SSD, with approximately 30 TB reported capacity.
                             
                             Windows System Event Log contains repeated Event ID 153 messages indicating disk I/O operations were retried.
                             
                             Get-StorageReliabilityCounter reports ReadLatencyMax of 21,004 ms. Most other reliability counters are unavailable.

Troubleshooting already performed

Tested the device on another computer using the same USB adapter and cable.

Restarted the USB Mass Storage parent device using PnPUtil.

Restarted the AL SSD disk device using PnPUtil.

Executed Update-HostStorageCache.

Executed DiskPart rescan.

Checked PnP device status and properties.

Checked physical disk capacity, partition information, and volume associations.

Verified that the PnP ProblemCode is 0.

No successful recovery of the usable disk capacity has occurred.

Important observation

The Windows storage layers report inconsistent information. WMI and the Storage Provider report approximately 30 TB, while DiskPart reports 0 bytes and no volumes.

My questions

How can I identify the exact controller chipset and NAND flash configuration behind USB VID_048D and PID_1234?

Is there a Microsoft-supported diagnostic method to determine why Windows reports the device capacity inconsistently?

Could this issue be caused by USB bridge firmware, controller firmware, or NAND communication failure?

Is there a vendor-approved controller recovery or firmware reinitialization procedure for this device?

How can I safely restore the actual usable capacity, recreate the GPT partition table, and format the device as NTFS?

All data on this SSD is expendable. I authorize complete erasure and reinitialization if an appropriate recovery procedure is available.

I do not want to use an incompatible or unverified firmware flashing utility that could permanently damage the controller.

My objective is to recover the SSD and verify whether its actual physical storage capacity is 30 TB using a complete write-and-read capacity test.

Thank you for your technical assistance.Hello Microsoft Community,