Error occurred during storage enumeration. The provider`s cache is empty.

Question

Hello all,
I`m currently experimenting with Server 2012 and I faced an issue, while trying to play around with Storage Pools. My Server manager fails on refreshing disk volumes with the above mentioned error. More specifically: 
Error occurred during storage enumeration.
Error occurred during enumeration of physical disk and storage pool associations: The provider's cache is empty. [Request = MSFT_SMDiskDriveToPool]
Error occurred during storage enumeration.
Error occurred during enumeration of physical disk: The provider's cache is empty. [Request = MSFT_SMDiskDrive]
There are 6 more errors with the same content, but for different things: Storage pools, Storage Pool capabilities; storage subsystem and pool associations;etc...
Also I see the same error in powershell:
PS C:\Users\Administrator> Get-PhysicalDisk
FriendlyName        CanPool             OperationalStatus   HealthStatus        Usage                            
 Size
PhysicalDisk2       False               OK                  Healthy             Auto-Select            
           2 GB
PhysicalDisk3       False               OK                  Healthy             Auto-Select            
           2 GB
PhysicalDisk4       False               OK                  Healthy             Auto-Select            
           1 GB
PhysicalDisk5       False               OK                  Healthy             Auto-Select            
           1 GB
PhysicalDisk0       False               OK                  Healthy             Auto-Select            
      931.51 GB
PhysicalDisk1       False               OK                  Healthy             Auto-Select            
      931.51 GB
Get-PhysicalDisk : The provider's cache is empty. [Request = MSFT_SMDiskDrive]
At line:1 char:1
+ Get-PhysicalDisk
+ ~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (MSFT_SMDiskDrive:ROOT/Microsoft/...FT_PhysicalDisk) [Get-PhysicalDisk], C
   imException
    + FullyQualifiedErrorId : 40003,Get-PhysicalDisk
I run Update-StorageProviderCache:
PS C:\Windows\system32> Update-StorageProviderCache -DiscoveryLevel Level3 -PassThru
Type    Name                                                                    
                   Manufacturer                                                  
SMP     Storage Spaces Management Provider                                                          Microsoft
Corporation        
with no luck. 
What could be the problem. Could somebody also explain me what this cache is used for?
Thanks in advance.
BR,
Svilen

Answer 1

in what you pasted you didnt run powershell as admin with "Get-PhysicalDisk" while with "Update-StorageProviderCache
-DiscoveryLevel Level3 -PassThru" you did run it as admin
Run powershell as admin and please see if that makes a difference for you.
MCITP:SA:EA:EMA2010:VA2008R2