Billy Crook wrote:
> Here's a couple trivial scripts I've used to pause execution until a
> sync is completed. They are handy for when you want to do multiple
> grow operations, each no sooner than after the previous completed.
> Modify for your own purposes.
>
> [root@Eight bin]# cat raid-wait-till-sync-finish
> #! /bin/bash
>
> export interval=300
>
> if [[ $1 -gt 0 ]]
> then
> interval=$1
> fi
>
> echo -n Checking every ${interval} seconds for raid sync to finish.
>
> while [[ $( cat /sys/block/md*/md/sync_action | \
> grep -v idle | \
> wc -l ) -gt 0 ]]
> do
> echo -n .
> sleep ${interval}
> done
>
> echo Raid System Healthy!
>
> exit 0
> [root@Eight bin]# cat raid-wait-till-all-healthy
> #! /bin/bash
>
> export clean=no
> while [[ $clean==no ]]
> do
> #set clean to yes
> clean=yes
>
> #Give each array the chance to set clean to no
> for array in `ls -1 /sys/block/md*/md -d`
> do
>
> if [[ $( cat $array/raid_disks ) -gt $( ls -1 $array/ | grep
> ^rd[0-9]*$ | wc -l ) ]]
> then
> echo $array is still unclean
> clean=no
> fi
> done
> sleep 5
> done
>
Both of these can be replaced by mdadm --wait $device
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