VSAN Mixing SAS / SATA Drives with HPE P420i

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Here is the general idea of the issue - with vSAN 6.7~ you cannot mix SAS / SATA Drives when using a P420i Raid controller with a DL360 Gen8. 

I first thought it was vSAN only, but I also could not create a regular VMFS 5/6 datastore on the SATA Volumes (SAS worked fine for VMFS and for vSAN)

The Error I got from VMware vSphere was very generic, so here it is:

A general system error occurred: Failed to reserve disk naa.5002538da03397d4 with exception: Failed to reserve disk naa.5002538da03397d4 with exception: Reserve failed with error code: -1

Operation failed, diagnostics report:  Unable to create Filesystem, please see VMkernel log for more details: Failed to create VMFS on device naa.5002538da03397...

I got around this by installing an H240 HBA controller that doesnt have any issues, and it appears on the VMware HCL. 

 

This article was updated on July 27, 2018

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