docs:tips_n_tricks:softraid.html
Table of Contents
SoftRAID
Create an RAID1 array degraded
mdadm --create --level 1 -n 2 /dev/md0 /dev/sda1 missing
don't mix up –create
and –build
, as the latter will not write meta date to the partion.
Resize RAID1 after underlying partitions are resized
mdadm --grow /dev/md0 --bitmap none mdadm --grow /dev/md0 --z max ( mdadm -W /dev/md0 && mdadm --grow /dev/md0 --bitmap internal ) & watch 'cat /proc/mdstat ; mdadm --detail /dev/md0 | fgrep -i bitmap'
Increase resync speed
Increase values in
/proc/sys/dev/raid/speed_limit_min /proc/sys/dev/raid/speed_limit_max
or in
/sys/block/md*/md/sync_speed_min /sys/block/md*/md/sync_speed_max
respectively
docs/tips_n_tricks/softraid.html.txt · Last modified: 22.09.2019 17:29 CEST by peter