IBM CS821 Service Manual page 104

NVMe drives are only supported on host operating systems; NVMe drives are not supported by guest
operating systems. On systems with RHEL 7.3 or later, or Ubuntu 16.04 or later, NVMe drives can be
used as bootable drives. Port 1 of the internal NVMe host bus adapter must be plugged into NVMe port
1 on the disk drive backplane.
Figure 89. NVMe drive locations
As an example, consider this configuration:
v Four NVMe front-mounted drives with two EKAE PCIe adapters.
v Two SATA DOMs plugged into the system backplane.
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Power Systems: Servicing the IBM Power System S821LC (8001-12C) or the IBM CS821 (8005-12N)