A system needs maintenance that requires the entire system to be brought down. The system is
running multiple IBM i partitions, all being hosted by and all resources owned by VIO Server
(VIOS).
After performing the maintenance, VIOS is brought back up and IBM i partitions are reactivated.
Two partitions have SPO codes indicating they cannot find disk drives.
What is the most likely cause?

A.
VIOServer has not completed the boot process.

B.
There is an incompatibilitywith server firmware and VIOS code.

C.
The partitions have multiple profiles, and a profile with an incorrectTagged I/O Load Source
was used.

D.
vSCSI controllers were added to the client partition using DLPAR, but never permanently added
to the profile.