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My RN312 is super slow on resync after new disk has been added

Uffe1959
Aspirant

My RN312 is super slow on resync after new disk has been added

After firmware update to 6.10.3 I started to look at the logs and saw increased ATA errors. Since the NAS is 7 years old I thought it might be a good opportunity to start exchange of the disks.

I bought a new Toshiba 2TB similar to the old one and replaced in NAS.

NAS is set as X-RAID.

 

Apr 09, 2020 10:02:11 AM
 
Disk: Disk Model:TOSHIBA DT01ACA200 Serial:Z9A17S2AS was added to Channel 2 of the head unit.
Apr 09, 2020 09:59:50 AM
 
Disk: Disk Model:TOSHIBA DT01ACA200 Serial:33GTP6GGS was removed from Channel 2 of the head unit.
Apr 08, 2020 08:20:25 PM
 
Disk: Detected increasing ATA error count: [101] on disk 1 (Internal) [TOSHIBA DT01ACA200, 33GKGMBGS] 14 times in the past 30 days. This condition often indicates an impending failure. Be prepared to replace this disk to maintain data redundancy.
Apr 08, 2020 10:37:50 AM
 
Disk: Detected increasing ATA error count: [39] on disk 2 (Internal) [TOSHIBA DT01ACA200, 33GTP6GGS] 19 times in the past 30 days. This condition often indicates an i

Now the resync has been running since the 9:th of April and is still on 21 % and calculates 8000h:s, sometimes 20000h:s.

 

Is it time to buy a  totally new NAS or is it repairable ?

 

I have tried some commands like: hdparm -W 1 /dev/sda

but it does not seem to turn on write cache for sda, it still says  (off)

However it seems to work for /dev/sdc.

See attached gif

 

 

 

Message 1 of 7

Accepted Solutions
ValerieD
NETGEAR Moderator

Re: My RN312 is super slow on resync after new disk has been added

Hello @Uffe1959 ,

 

Welcome to the NETGEAR community! Smiley Happy

You should make a backup of the data first of all (on another support) as long as you have access to it.
The errors come from the drives, so the chassis is probably not faulty.

The sync probably takes so long because there is drive failing there and with the constant read/write operations of the sync the ReadyNAS might struggle if a drive is bad.

Could you send me the logs via MP, please?

 

Have a nice day,
Valérie D
Netgear team


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Message 2 of 7

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ValerieD
NETGEAR Moderator

Re: My RN312 is super slow on resync after new disk has been added

Hello @Uffe1959 ,

 

Welcome to the NETGEAR community! Smiley Happy

You should make a backup of the data first of all (on another support) as long as you have access to it.
The errors come from the drives, so the chassis is probably not faulty.

The sync probably takes so long because there is drive failing there and with the constant read/write operations of the sync the ReadyNAS might struggle if a drive is bad.

Could you send me the logs via MP, please?

 

Have a nice day,
Valérie D
Netgear team


____
Cliquez sur KUDOS si ce post est utile et marquez le comme SOLUTION ACCEPTEE

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Message 2 of 7
ValerieD
NETGEAR Moderator

Re: My RN312 is super slow on resync after new disk has been added

Hello @Uffe1959 ,

 

So, the logs are confirming what I previously advised.

Replacing faulty drives would be the best solution.

Did you manage to make a backup on another support?

 

Have a nice day,
Valérie D
Netgear team


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Message 3 of 7
Uffe1959
Aspirant

Re: My RN312 is super slow on resync after new disk has been added

Hi !

I have bought 2 new similar disks to the ones previously installed. 

Now system reports 11 hours to complete resync, it looks like almost 90% of the data was synced on the new disk I installed beginning of April.

The earlier resync never reached 20% and expected finalization was in 25000 h ... but some how 390 Gb of around 420 is on the new disk.

 

I still have most of the data on other disks/laptops but a thing like this makes you start to plan for a backup solution of some sort..

 

Thanks anyway !

BR

Ulf

Message 4 of 7
ValerieD
NETGEAR Moderator

Re: My RN312 is super slow on resync after new disk has been added

Hello @Uffe1959 ,

 

Ok, so where are we since Friday?

Can you update us about the synching?

 

Have a nice day,
Valérie D
Netgear team


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Message 5 of 7
Uffe1959
Aspirant

Re: My RN312 is super slow on resync after new disk has been added

Hi !

The NAS is now back on line with two new disks similar to the old ones. Syncing took around 10 hours with new disks.

So now everything is back to normal.

BR

Ulf

Message 6 of 7
ValerieD
NETGEAR Moderator

Re: My RN312 is super slow on resync after new disk has been added

Hello @Uffe1959 ,

 

I'm happy to read this! Smiley Very Happy

Enjoy and take care.

 

Have a nice day,
Valérie D
Netgear team


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