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Guide

Jul 17, 2018

Solved

Data Degraded Error

Hi, I have just had a reboot and my system is giving a "Data Degraded" registering, I did get a "Disk 3 Error" and was about to backup and replace the disk when the "Data Degared' error occured...

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Marc_V
Jul 19, 2018
Hi jimcocteau

The logs sent was before the disk was replaced right? What is the progress of the re-sync now? were you able to get the serial number of the replacement and the drive you replaced? Kindly PM me if it's available.

Re-sync once completed should get your NAS back to normal.

Regards

jimcocteau

Guide

Jul 17, 2018

Hi Mark_V,

I have worked out I can replace the disk (I do have a spare, same size and type, it has been used in my other unit and will require formating when I install but should be fine. The logs are indicating disk three is the only one degraded so with my configuration as Raid5 with four disks I should be able to resync all files.

Can I just replace with out powering down?

Thanks,

jimcocteau

Marc_V

NETGEAR Employee Retired

Jul 17, 2018

Hi jimcocteau

Yes, ReadyNAS supports hot swap so you don't need to power down the device when you replace a disk.

Please see How do I replace a disk in my ReadyNAS OS 6

Hope this helps!

Regards

jimcocteau
Guide
Jul 17, 2018
Hi Mark_V,

I have replaced the disk, its a JBOD that I used in my other unit, as attached photo, can I destroy or somhow reformat and then add to my RAID5, I have not rebooted as yet. I will also send logs as per insructions.

If not I will have to power down and obtain a new Disk?

Thanks

Jim
- StephenB
  Guru - Experienced User
  Jul 17, 2018
  jimcocteau wrote:
  
  can I destroy or somhow reformat and then add to my RAID5
  
  Yes. You can destroy the volume by using the settings wheel next to the volume. Then select the disk, and use the format control on the volume screen. After that, XRAID should automatically add it to the volume.
  - jimcocteau
    Guide
    Jul 17, 2018
    Hi StepenB,
    
    I can access all my data now (both in Finder and Netgear Admin) so "Destroying" The JBOD inserted Disk will not harm my existing 3 disks or my data, I can then just add to the existing RAID5 when distryed, it will automaticly pick it up?
    
    I'm just a little nervous to do this....so just to be sure I have attached the photo so to confirm I am on the right track?
    
    Thanks,
    
    Jimcocteau
- Marc_V
  NETGEAR Employee Retired
  Jul 19, 2018
  Hi jimcocteau
  
  The logs sent was before the disk was replaced right? What is the progress of the re-sync now? were you able to get the serial number of the replacement and the drive you replaced? Kindly PM me if it's available.
  
  Re-sync once completed should get your NAS back to normal.
  
  Regards
  - jimcocteau
    Guide
    Jul 19, 2018
    Hi Marc_V,
    
    Disk Details:
    
    Tue Jul 17 2018 20:57:25 Disk: Disk Model:ST4000VN000-1H4168 Serial:Z300VEY8 was added to Channel 3 of the head unit.
    
    I have also sent uptodate logs, the resync is at 61.14% time left 32.41.22
    
    Thanks,
    
    jim