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RN314 problems after Readynas 6.10.7
After install of 6.10.7 (apparently trouble free) on a RN314 (4*6TD WD drves) that has been in use for years, the gui degrades to the point where no data appears in the admin page. In the short time...
alfb wrote:
So should I hot swap sdb (drive 2 as 1,2,3,4) or is it sbd (drive 2 as in 0,1,2,3) The output from mdstat infers drive numbers are 0,1,2,3
And are these numbers from left to right as looking from the front??
One caution is that the error in the screen shot is a read error - normally if mdadm is rebuilding a disk, it is writing to it. So there still is some uncertainty on exactly what is going on.
sdb is normally the second disk from the left (the disk in the first slot normally is sda).
If you aren't certain, you can also get the serial number with smartctl -x /dev/sdb (along with a lot of other information). Then you could power down the NAS, check the disk serial, and boot up the NAS read-only without it. If the volume is there, but degraded, then you could reboot again normally. Then do a hot-insert of the replacement.
Instructions on booting the NAS read-only are on pages 74-75 here:
StephenB,
Thanks for your advice.
Re
If the drive that is resyncing is the faulty one, then you don't need to wait.
But if it is a different drive, then you do.
I am not sure which drive is resyncing. I will try to copy the output of /proc/mdstat to show you what I know. It shows md126 with the activity, but no indication that I can see of drive 1 or 2 or 3 or 4
Perhaps there is a different cli command?
Regards, Alf
StephenB, thanks again for your interest.
Here is a screen shot of the command output. I'm still no wiser as to which physical drive is being resynced.
Regards, Alf
alfb wrote:
I'm still no wiser as to which physical drive is being resynced.
Me either. I was expecting to see one of the drives saying "rebuilding" for its status at the bottom.
Maybe try the same command with /dev/md127 ??
Hello StephenB,
I am including the screen shot of the command for md127. It shows no resync.
Also shows bottom of output command for md126 showing progress to 7%.
Am I wrong in thinking the "devices" md126, md127, md0, and md1 refer to a raid group and not an individual physical drive?
Is there a difference between resync and rebuild?
Just FYI. Display panel shows all lights "1 2 3 4 Activity Power" on solid.
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