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Tutor

Oct 04, 2016

ReadyNAS Ultra 4+ silently shut down

My Ultra4+ is runing RAIDiator 4.2.20. This morning I woke up to my NVR disk alarm going off. It turns out that the NAS had silently shut down sometime over night. I powered it back up and it boot...

Booting

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mdgm-ntgr

NETGEAR Employee Retired

Oct 04, 2016

I can't see a reason for the crash in the logs either.

You could go to OS6 if you want.

First step would be to backup your data and verify that that is good.

The ST3000DM001 disks do have very high failure rates. I'd recommend switching to another disk model if possible e.g. WD RED or SeaGate NAS.

atebit

Tutor

Oct 05, 2016

So far (at least 4 years) ive been luck with these drives. But part of this project is migrating to 4TB WD Purple drives once I've backed up fully. Since I also want to move to OS6, is there a suggested order that I should complete the volume expansion, factory default, data restore and OS6 upgrade tasks?

StephenB
Guru - Experienced User
Oct 05, 2016
I'd do this:

(a) backup data and document configuration

(b) remove existing drives, labeling by slot

(c) install one purple drive (which will do a reset)

(d) upgrade to OS 6, do basic configuration

(e) change to flexraid, delete the data volume

(f) install remaining purple disks, and create volume with raid-5

(g) convert back to xraid

(h) reconfigure shares

(i) install any desired apps

(j) restore data

Preserving the existing disks gives you a fallback if the backup has problems. I've attempted to minimize sync time by starting with one disk, and destroying/resyncing the full volume in (e) - (g).
- atebit
  Tutor
  Oct 05, 2016
  Thanks for the outline, will be doing this within the week. One more question: If I end up needing to revert to the old drives after moving to OS6, will they still be recognized or will I need to fall back to RAIDiator 4.x first?
  - StephenB
    Guru - Experienced User
    Oct 05, 2016
    atebit wrote:
    
    Thanks for the outline, will be doing this within the week. One more question: If I end up needing to revert to the old drives after moving to OS6, will they still be recognized or will I need to fall back to RAIDiator 4.x first?
    
    If you power up with all the old drives it should boot with the volume as read-only. http://kb.netgear.com/app/answers/detail/a_id/29957?cid=wmt_netgear_organic
    
    Though I haven't seen any posts from OS6-on-legacy users that confirm that this works with the legacy NAS.