Forum Discussion

Aspirant

Mar 27, 2020

Solved

JBOD across two disks, one fails

Hello Community:

I have a ReadyNAS RN102 with two 2TByte disks configured as a single JBOD volume across both disks (Yes, I know). One is now failing with the effect that the NAS's web interface is hardly accessible. I would like to try to copy as much data as possible to a USB drive, but without the web interface being accessible, this is difficult. After a boot, it sometimes loads, sometimes it does not. When it loads and I navigate to another tab, sometimes it works, sometimes it does not.

Does anyone have a suggestion?

I really do not want to hear, that my configuration is risky, I knew that and I still had my reasons. And it is not a catastrophy, if the data on the NAS is lost. :smileyhappy:

But still, if somone has an idea, let me know.

HAL.

Sandshark
Mar 27, 2020
If you can, turn on SSH as soon as you have any GUI access. Then, you can use the Linux command prompt to copy your files to USB.

It is a shame that Netgear has such a stern warning about SSH, as many suffer the catch 22 of not having SSH enabled when there is a potential fix, or at least work-around via SSH to their issue, had it only already been enabled.

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Sandshark
Sensei - Experienced User
Mar 27, 2020
If you can, turn on SSH as soon as you have any GUI access. Then, you can use the Linux command prompt to copy your files to USB.

It is a shame that Netgear has such a stern warning about SSH, as many suffer the catch 22 of not having SSH enabled when there is a potential fix, or at least work-around via SSH to their issue, had it only already been enabled.
- HAL_9000
  Aspirant
  Mar 27, 2020
  I had the same thought. I was not able to switch on SSH via the web interface, but with an app called NAS Utils on my iPhone. Now -- as a Unix novice -- I need to figure out, who to copy the data. At least I can see the disks and partitions via lsbkl now.
  - StephenB
    Guru - Experienced User
    Mar 27, 2020
    HAL_9000 wrote:
    
    I had the same thought. I was not able to switch on SSH via the web interface, but with an app called NAS Utils on my iPhone. Now -- as a Unix novice -- I need to figure out, who to copy the data. At least I can see the disks and partitions via lsbkl now.
    
    Can you first check to see how full the OS partition is?
    
    Start by entering
    
    # mount --bind / /mnt
    # df -h /mnt
    
    That mounts sysroot as /mnt, and then shows you the OS partition usage. Normally it will be 25-30% full.
    
    If it is full, then let us know and we can give some guidance on cleaning it.
    
    When done, you unmount with
    
    # umount /mnt
    
    Note the spelling - umount, not unmount.
    
    BTW, make sure you log in as root using the NAS admin password.