Alternative:
Changing the default values 1000 in "/proc/sys/dev/raid/speed_limit_min" to be high to get faster speed for rebuild/sync the RAID group. When you set the values higher, more CPU resources will be used.
For example, "echo 50000 > /proc/sys/dev/raid/speed_limit_min" to tell the OS using at least 50MB/s to do rebuild/sync.
Using "cat /proc/mdstat" to check the current rebuild/sync speed. |