Is it possible to convert from LVM with one disk of parity to no disks of parity in-place? E.g. take a 42 TiB 4x14 TiB Raid5 LVM and turn it into a 56 TiB 4x14 LVM without using intermediate storage.
If you remove a disk it'll obviously still keep on keeping on, but at a significant performance penalty. So is there an inbuilt routine that'll drop a disk from the array, then say use it as a store while it writes out to fill it with data from the remaining 3 disks in the array. Then do some magic shit to say shrink the size of the volumes on the first 3 disks, creating space on them to write out another chunk into the first 2 disks, rinse and repeat until the 3rd disk can be dropped from the array, put that in an array with the 4th disk, rinse repeat. Until the 2nd disk and 1st disks can be dropped, and added to the new non-parity array?
I'm broke AF, and can't stop hoarding. I'm livin' on a prayer here boys.