# /opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -Lall -a0
User specified controller is not present.
Failed to get CpController object.
Exit Code: 0x01
Megacli commands not working,
X5 Exadata Extreme Flash uses NVME CARDS instead of Disks, hence not disk controller.
You can even verify using storcli64 command.
# /opt/MegaRAID/storcli/storcli64 /c0 /eall /sall show
Controller = 0
Status = Failure
Description = Controller 0 not found