One of our HP Gen 9 blades had the following configuration error:
Lost connectivity to the device mpx.vmhba32:C0:T0:L0 backing the boot filesystem /vmfs/devices/disk/mpx.vmhba32:C0:T0:L0. As a result, host configuration changes will not be saved to persistent storage.
The boot filesystem is on an internal 8 GB SD Card. I logged into iLo, went to Diagnostics and found the system no longer saw the SD Card as mounted:
We evacuated the host and reseated the SD Card. It mounted without issue but to be safe we went ahead and installed a replacement SD Card. Issue reoccurred. This is caused by the version of iLo running on the server.