

Here is the tutorial I’m using
https://dev.to/madmannew/how-to-convert-lv-or-md-raid1-and-0-into-raid5-without-losing-data-3mfl
So far I’m about 22% done converting the Raid 1 to Raid 5, looks like it will take around 6 hours.
Anyone else done this? Any pointers?
Just so I’m clear on this, is “raid controller” a physical device? Real servers are like wizard magic to me.