I’ve got news for you John1000, Recently I whent through the same problem being stuck at the rebuilding status for countless hours and well I kinda got tired of waiting for it and decided to speed things up.
Now I don’t know why WD would cap the Rebuild speed to 1031K/sec but if you wanna speed things up all you have to do is log into your device and type in:
sysctl -w dev.raid.speed_limit_min=100000
after that go ahead and type
cat /proc/mdstat
and you’ll see some BIG difference in speed.
~ # cat /proc/mdstat
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md1 : active raid1 sdc2[0] sdd2[1]
3902822264 blocks super 1.0 [2/2] [UU]
[====>................] resync = 22.2% (869768832/3902822264) finish=792.1min speed=63812K/sec
md0 : active raid1 sdd1[3] sdc1[2] sdb1[1] sda1[0]
2097088 blocks [4/4] [UUUU]
unused devices: <none>
Just make sure not to do anything else with the device and disable all downloading or sync services while you do this process as this will degrade the speed for the rebuild.
WD PLEASE RELEASE THE SDK FOR THIS DEVICE IT WOULD HELP UNDERSTAND THIS DEVICE WAY MUCH BETTER.
