I converted an older HP DL380 Gen8 (aka a StoreOnce 2900) from using a hard RAID controller to an HBA for software RAID. The conversion is simple, but the video is long af because I spend a lot of time discussing the “why” more than the “how”.
In this excerpt from the below video, I talk about the total cost of ownership of RAID arrays.
This describes why I created the RAID HDD TCO Calculator which helps you figure out the total cost of ownership of a RAID array, inclusive of stuff like electrical and cooling costs.