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Re: ReadyNAS Duo v2

JJNas24
Aspirant

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 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."

It looks like no data has been copied.

I tried the whole thing twice.

The new disk has a different firmware.

Can anyone say what the problem might be?

Thank you and greetings

JJ

 

Model: RND2000v2|ReadyNAS Duo v2 Chassis only
Message 1 of 16

Accepted Solutions
StephenB
Guru

Re: ReadyNAS Duo v2


@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.

View solution in original post

Message 9 of 16

All Replies
StephenB
Guru

Re: ReadyNAS Duo v2


@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.

Message 2 of 16
JJNas24
Aspirant

Re: ReadyNAS Duo v2

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

Model: RND2000v2|ReadyNAS Duo v2 Chassis only
Message 3 of 16
StephenB
Guru

Re: ReadyNAS Duo v2


@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.

Message 4 of 16
JJNas24
Aspirant

Re: ReadyNAS Duo v2

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.

Message 5 of 16
JJNas24
Aspirant

Re: ReadyNAS Duo v2

The long test was running without errors, but I could not find a test to write zeros.

Status is as follows:

Personalities : [linear] [raid0] [raid1] [raid10] [raid6] [raid5] [raid4]
md2 : active raid1 sdb3[3] sda3[2]
2925544752 blocks super 1.2 [2/1] [_U]

md1 : active raid1 sdb2[3] sda2[2]
524276 blocks super 1.2 [2/2] [UU]

md0 : active raid1 sdb1[3] sda1[2]
4193268 blocks super 1.2 [2/2] [UU]

unused devices: <none>

The volume is up but not redundant, disk 1 is as usual the problem.

Can you point out how to write zeros?

 

Model: RND2000v2|ReadyNAS Duo v2 Chassis only
Message 6 of 16
StephenB
Guru

Re: ReadyNAS Duo v2

Click on "run tests" and then click on "erase" Choose the "full erase" option.

Message 7 of 16
JJNas24
Aspirant

Re: ReadyNAS Duo v2

Hi,

I have done the full erase.

After that i have inserted the new disk again in slot1, rebuild starts and ends with same problem.

Do you have another idea?

Model: RND2000|ReadyNAS Duo Chassis only
Message 8 of 16
StephenB
Guru

Re: ReadyNAS Duo v2


@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.

Message 9 of 16
JJNas24
Aspirant

Re: ReadyNAS Duo v2

Hello, I have reconfigured the raid and partially restored the data.

Everything looks good for now.

Stupid that this doesn't reflect the function of a NAS.

Thanks for your help and patience.

Model: RND2000v2 (ReadyNAS Duo v2)|READYNAS DUO v2 (DISKLESS)|EOL
Message 10 of 16
red2design
Aspirant

Re: ReadyNAS Duo v2

Hi, have a Netgear ReadyNAS Duo v2 RND2000-200EUS (working) and recently had a new Asus router. I now can't connect to the ReadyNAS Duo v2 where all my work is stored, I can see it in Network but it won't connect. Any ideas how I can connect? I'm on a Mac, the firmware doesn't work for this model either! So I'm at a loss.

Message 11 of 16
schumaku
Guru

Re: ReadyNAS Duo v2


@red2design wrote:

... Netgear ReadyNAS Duo v2 RND2000-200EUS (working) and recently had a new Asus router. I now can't connect to the ReadyNAS Duo v2 where all my work is stored, ...

Same IP address, and same IP subnet, as before on the original router and LAN? Static IP configured (as before), and adopted the previous router LAN IP subnet addressing?

Message 12 of 16
red2design
Aspirant

Re: ReadyNAS Duo v2

Hi and thank you for replying. Yes with help from my ISP...

"Try changing the LAN IP to 192.168.2.1 and the DHCP start with 192.168.2.20 ending address 192.168.2.200. Hopefully then you will be in the same subnet as the Netgear NAS." 

This is showing me more, I can see folders called admin, backup, home, media and share BUT I can't see my Work!!

Message 13 of 16
schumaku
Guru

Re: ReadyNAS Duo v2

So try to access the ReadyNAS admin Web UI http://192.168.2.xxx/admin/

Message 14 of 16
red2design
Aspirant

Re: ReadyNAS Duo v2

OK I have tried that but I get a 'Device is offline' box appearing in my browser and then limited Dashboard items behind that. The device is on with blue lights showing, it's plugged into the router too, just how it was with the old router.

Message 15 of 16
StephenB
Guru

Re: ReadyNAS Duo v2


@red2design wrote:

 

This is showing me more, I can see folders called admin, backup, home, media and share BUT I can't see my Work!!


Likely are you aren't using the same credentials as you were before.  What happens if you look deeper into "home"?  You should see a few usernames there (admin for sure).  Look in those and see if you see your folders.

Message 16 of 16
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