Fail to create Storage Bus Cache

New-StorageBusBinding : 调用“PrepareHddForCache”时发生异常:“常规故障 ”
所在位置 C:\WINDOWS\system32\WindowsPowerShell\v1.0\Modules\StorageBusCache\StorageBusCache.psm1:2941 字符: 17
+ ...             New-StorageBusBinding -CacheGuid $bindOrder[$nextCache] - ...
+                 ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : NotSpecified: (:) [New-StorageBusBinding], MethodInvocationException
    + FullyQualifiedErrorId : WMIMethodException,New-StorageBusBinding

Update-StorageBusCache : Storage Bus has unbound capacity devices, autoconfiguration of pool not possible
所在位置 C:\WINDOWS\system32\WindowsPowerShell\v1.0\Modules\StorageBusCache\StorageBusCache.psm1:1074 字符: 13
+             Update-StorageBusCache
+             ~~~~~~~~~~~~~~~~~~~~~~
    + CategoryInfo          : InvalidOperation: (:) [Update-StorageBusCache]，RuntimeException
    + FullyQualifiedErrorId : InvalidOperation,Update-StorageBusCache

Error as shown above, fail to auto create pool. SBC has so less infomation on the internet. I don't know what is 'unbond capacity devices'. Can someone explain that? Thanks in advance.

Our current setup comes with Hardware raid HDD and an NVME ssd.

Number FriendlyName        SerialNumber                     MediaType   CanPool OperationalStatus HealthStatus Usage            Size
------ ------------        ------------                     ---------   ------- ----------------- ------------ -----            ----
501    DELL PERC H730 Adp  00f2daaa874db6222b007daf35f098cd Unspecified True    OK                Healthy      Auto-Select  16.37 TB
502    HFS960GD0TEG-6410A  ACE4_2E00_05DE_70E7.             SSD         True    OK                Healthy      Auto-Select 894.25 GB
0      VMware Virtual disk 6000c2965b338b5ea5fe590f301ad939 SSD         False   OK                Healthy      Auto-Select     50 GB

I notice one MediaType is unspecified, so I use

Set-PhysicalDisk -FriendlyName "DELL PERC H730 Adp" -MediaType HDD

and turn 'Unspecified' to 'HDD'. But still thown out same error. Can somebody help me with this?