Every 2.0s: cat /proc/mdstat cn08: Thu Oct 5 20:17:58 2023
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md1 : active raid10 sde2[10] sdd2[9] sdc2[8] sdb2[7] sda2[6] sdf2[1]
2809531392 blocks super 1.2 512K chunks 2 near-copies [6/5] [UU_UUU]
[>....................] recovery = 2.0% (19152704/936510464) finish=30.0min speed=508042K/sec
bitmap: 3/21 pages [12KB], 65536KB chunk
md0 : active raid10 sde1[10] sdd1[9] sdc1[8] sdb1[7] sda1[6] sdf1[1]
3139584 blocks super 1.2 512K chunks 2 near-copies [6/6] [UUUUUU]
unused devices: <none>
Doing this 6 times, so 3 hours resyncing disks.
Probably could resync faster if I set some kernel parameters, but it doesn't really matter.
@splitshockvirus@mstdn.starnix.network sync times are another reason to use btrfs for RAID which does all the sync/parity calculations on each write. Saves so much time :)
use btrfs for RAID
@splitshockvirus@mstdn.starnix.network hasn't failed me yet, because unlike other people I read the documentation!
@EricZhang456@stereophonic.space
@splitshockvirus@mstdn.starnix.network The archwiki is not good for btrfs