Forum Discussion

Aspirant

Jul 21, 2017

Solved

RAID 6 inaccessible after hdd upgrade

Hello, I had 4 seagate 3TB drives on my ReadyNAS 104 firmware 6.7.4, using RAID 6. One of them went bad, so I exchanged it for a seagate 4TB drive. After a few days resyncing, it finished without...

Installation & Upgrade

jak0lantash
Jul 24, 2017
sectoid wrote:
I tried using SSH to create a dmesg log myself but I couldn't because I got the error "dmesg: write failed: No space left on device"!! My HDDs have plenty of space but of course it's referring to the internal space of the NAS.
It's not referring to the Flash card but to the OS volume created on the HDDs.
You see, there are three volumes created on the HDDs, the OS, the swap and the data (multiple pieces for data in certain cases).
If it tells you that there is no space left when trying to extract the logs, that would mean that the OS volume is full. Sometimes, this prevents the data volume from being mounted.

Can you check with df -h if md0 is full?
If it is, follow these steps: https://community.netgear.com/t5/Using-your-ReadyNAS/RN314-FW-6-7-1-root-partition-full-how-to-fix/m-p/1284659/highlight/true#M130056

jak0lantash

Mentor

Jul 21, 2017

I can't see the screenshot as it wasn't approved yet.

Download the logs from the GUI, search for md127 in dmesg.log and paste an extract here.

Maybe you want to upvote this "idea" as well: https://community.netgear.com/t5/Idea-Exchange-for-ReadyNAS/Change-the-incredibly-confusing-error-message-quot-remove/idi-p/1271658

sectoid

Aspirant

Jul 21, 2017

Thanks for the reply! I can't download the logs, I get the following error:

<xs:nml xmlns:xs="http://www.netgear.com/protocol/transaction/NMLSchema-0.9" src="browser" dst="nas" locale="en-us">

<xs:transaction ref-id="" type="0">

<xs:response ref-id="opid" status="failure">

<xs:error>

<xs:error-code>

<![CDATA[ 12008010002 ]]>

</xs:error-code>

<xs:error-cause>

<![CDATA[ Can't create zipped log ]]>

</xs:error-cause>

<xs:error-details>

<![CDATA[ Error in dlowload log ]]>

</xs:error-details>

</xs:error>

</xs:response>

</xs:transaction>

</xs:nml>

I've upvoted the idea, of course! I suspected right off the bat that I shouldn't do what it was suggesting and that's why I came here...

sectoid
Aspirant
Jul 21, 2017
The NAS is generating a lot of logs, I'm attaching an screenshot of it.

I tried using SSH to create a dmesg log myself but I couldn't because I got the error "dmesg: write failed: No space left on device"!! My HDDs have plenty of space but of course it's referring to the internal space of the NAS. How could this happen? I have only one app in use, Transmission, but my use of it is very light, occasional. I also use the amazon drive synchronization.

So here's the output of dmesg which I got by hand using SSH:
https://www.dropbox.com/s/6r0swgcexehunok/readynas104-dmesg.log?dl=0

Thank you very much for your help!
- Marty_M
  NETGEAR Employee Retired
  Jul 24, 2017
  Hello sectoid,
  
  Please try to download the logs from Raidar softwae utility.
  
  Regards,
  Marty_M
  NETGEAR Community Team
  - sectoid
    Aspirant
    Jul 24, 2017
    Unfortunately both RAIDar and ReadyCLOUD can't connect to the NAS. RAIDar shows me all the info, including volumes, and I can click on download logs but it shows "Connecting to ReadyNAS ..." for a bit and then "Download process failed."
    
    I can extract anything by SSH, I just need to know the location.
    
    I'll admit that I'm starting to worry about, and miss, my data :(
    It's kinda impossible to not get nervous in a situation like this!
    
    Thanks for the help.
- jak0lantash
  Mentor
  Jul 24, 2017
  sectoid wrote:
  I tried using SSH to create a dmesg log myself but I couldn't because I got the error "dmesg: write failed: No space left on device"!! My HDDs have plenty of space but of course it's referring to the internal space of the NAS.
  It's not referring to the Flash card but to the OS volume created on the HDDs.
  You see, there are three volumes created on the HDDs, the OS, the swap and the data (multiple pieces for data in certain cases).
  If it tells you that there is no space left when trying to extract the logs, that would mean that the OS volume is full. Sometimes, this prevents the data volume from being mounted.
  
  Can you check with df -h if md0 is full?
  If it is, follow these steps: https://community.netgear.com/t5/Using-your-ReadyNAS/RN314-FW-6-7-1-root-partition-full-how-to-fix/m-p/1284659/highlight/true#M130056
  - sectoid
    Aspirant
    Jul 25, 2017
    Yes it is full. However the biggest directory (3.1Gb) only has personal files (photos and videos) which I can't delete and didn't expect to be in an OS partition... shouldn't it be in the data partition? Why is it there?
    
    I didn't do anything yet because I'm not sure if I can safely delete those files. Another question: after I create space, should I reboot the NAS or will it recover the volumes automatically?