Yes, you need a RAID controller capable of reading the RAID configuration. This is one reason you should never use the S-series RAID controllers. You *may* be able to use the S300 card to read and import the data though ...
We have a T310 server whose motherboard is broken (thats what the technician said). This server came with a PERC S100 controller and 3 HDD in a  RAID5 configuration. I have connected the disks to my PC and all are recognized, but cannot be mounted because of the raid configuration. What are my options to recover the info from the disks?  Do I need to get another server with the same raid controller? If it helps, this is the service tag:  Thanks in advance for your suggestions Robert
Restore info from RAID5 PERC S100, 3 HDD in total, all in good state