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ReadyNAS Duo v2
Hello, everybody, i have a RN Duo v2 with two 3TB WD red disks, Radiator 5.3.13. The disk in shaft 1 failed. New 3TB WD red ordered and installed. Sync runs for about 8 hours, is then stopped wit...
JJNas24 wrote:I have done the full erase.
After that i have inserted the new disk again in slot1, rebuild starts and ends with same problem
Same mdstat.log?
JJNas24 wrote:
Do you have another idea?
Do a full backup. Then do a factory install with all disks in place, and confirm that the RAID array is correct. Then reconfigure the NAS, and restore the data from backup.
A variant is to do the factory install with only the new disk in slot 1, and confirm that is ok. Then hot-insert the remaining disks one at a time.
JJNas24 wrote:
It looks like no data has been copied.
Not sure what you mean by this.
JJNas24 wrote:
Sync runs for about 8 hours, is then stopped with the message "RAID sync finished on volume C. The array is still in degraded mode, however. This can be caused by a disk sync failure or failed disks in a multi-parity disk array."
If you can connect the disk(s) to a Windows PC, it would be helpful if you test them both with WD's Lifeguard software. You'd connect them with either SATA or a USB adapter or dock. Power down the NAS before removing the disks for testing, and label them by slot number (so you can replace them later).
I don't own a v2 NAS. But see if you can download the log zip file, and look in there for mdstat.log. If you see that, then please copy/paste it into a reply here.
Hi Stephen,
thanks for the reply.
I have copied the mdstat.log.
Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid1 sda3[2]
2925544752 blocks super 1.2 [2/1] [_U]
md1 : active raid1 sda2[2]
524276 blocks super 1.2 [2/1] [_U]
md0 : active raid1 sda1[2]
4193268 blocks super 1.2 [2/1] [_U]
unused devices: <none>I have booted the NAS after sync only with the new disk in slot 1 inserted and no data was available.
Another boot with only the old disk in slot 2 was showing all the data.
So I guess nothing's been copied.
Now the NAS is working only with the disk in slot 2.
I will try WD's Lifeguard software, but it's gonna take some time.
greetings
JJ
JJNas24 wrote:
md2 : active raid1 sda3[2]
2925544752 blocks super 1.2 [2/1] [_U]
md1 : active raid1 sda2[2]
524276 blocks super 1.2 [2/1] [_U]
md0 : active raid1 sda1[2]
4193268 blocks super 1.2 [2/1] [_U]So disk 1 isn't in the array at all.
After you use the normal long nondestructive test with lifeguard, you should also run the full write zeros test. If both pass, then try inserting the disk back into slot 1 with the NAS running.
Ok, thanks for the suggestion. I will do so and let you know the result.
Normal test is running about 5 hours and then I will write the zeros.
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