Convert LVM logical volume Raid 10 to Raid 5
Two weeks ago I was running out of space on my main raid matrix on my server. Server was configured and assembled few years back, and at that time I had about 700GB of data there so having RAID 10 of 4 1TB disks (that account for about 1,7TB of actual space for data) was enough. Especially when you count in a price of 2TB (or 4TB) NVME M2 disk back then.