Discovery facts don't show machine's disks connected to raid controller

Discovery facts don’t show machine’s disks connected to raid controller. In my case it is Lenovo raid controller based on Avago MegaRAID. Is it expected?
Expected outcome:
Disk count and size should be visible for disks connected through raid controllers without any additional fuss.
Foreman and Proxy versions:
Foreman and Proxy plugin versions:
up to date
Distribution and version:
Centos 7
Other relevant data: