whenever I use rm or cp on a bigger file structure the disk i/o is going up to the top, but not with the focus on cp or rm, it is the software raid sync. My knowledge in this area is limited. The topics I found were about finding the source of it and nothing further. As I know it already here the question.
- Is this sort of behavior normal for a system raid?
- What can I do if I/O nice c3 is changing nothing due to the burst from the raid?
.
md2 is mounted with nobarrier
Drives: HGST HUS724020ALA640
# cat /proc/mdstat
Personalities : [linear] [multipath] [raid0] [raid1] [raid6] [raid5] [raid4] [raid10]
md1 : active raid1 sdb2[1] sda2[0]
523968 blocks super 1.2 [2/2] [UU]
md2 : active raid1 sdb3[1] sda3[0]
1936077760 blocks super 1.2 [2/2] [UU]
md0 : active raid1 sdb1[1] sda1[0]
16768896 blocks super 1.2 [2/2] [UU]
unused devices: <none>