Andy Burns wrote:

if the disks are from a RAID system, the partitions
probably don't start where partition tools are going to be looking for
them, so you'll get a false sense that there aren't valid partitions on

s/partitions/file-systems

the disks.

Generally to inspect RAID disks that aren't attached to their RAID
controller, you need special software, e.g.

https://www.osforensics.com/rebuild-raid.html