RNR4000 (ReadyNAS 1100) - Disks Not Readable

Question

Hello,&nbsp;My device was shut-down due to psu failure. I had ordered new psu from amazon and replaced it with the damaged one. The device turned on however Drive 1 and Drive 4 are not readable (it states no disk found/inserted).The Drive 2 and Drive 3 are appearing but I cannot access any data as it throws error file not found or corrupted.The data is very important.&nbsp;I've tried opening case with netgear, but no success.&nbsp;Can anyone please suggest how to get the drives work again without loosing any data?I am willing to pay the netgear technical team to look into the case and help resolving the issue.

StephenB · Answer

khushaim&nbsp;wrote:
Drive 1 and Drive 4 are not readable (it states no disk found/inserted).
&nbsp;

Try powering down the NAS, and testing the drives in a windows PC with vendor tools (Lifeguard for Western Digital; Seatools for Seagate).&nbsp; Start with the short test, and if that passes run the long one.
&nbsp;
khushaim&nbsp;wrote:
&nbsp;
The Drive 2 and Drive 3 are appearing but I cannot access any data as it throws error file not found or corrupted.
&nbsp;

Were you using RAID-5/X-RAID with a single volume?&nbsp; If not, how many volumes did you have?

khushaim · Answer

StephenB&nbsp;wrote:Try powering down the NAS, and testing the drives in a windows PC with vendor tools (Lifeguard for Western Digital; Seatools for Seagate).&nbsp; Start with the short test, and if that passes run the long one.Connecting the drives to Windows PC is not working, as Disks are not being initialized due to linux format of drives. Should installing the tools you've mentioned will be able to read the drives and process tests?As I am avoiding playing around with the drives that may increase the risk of loosing the data.&nbsp;StephenB&nbsp;wrote:Were you using RAID-5/X-RAID with a single volume?&nbsp; If not, how many volumes did you have?Following are details from NAS:Model: ReadyNAS 1100 [X-RAID]Firmware: RAIDiator 4.1.16 [1.00a147]Memory: 512 MB [2.5-3-3-7]Volume C: Offline, RAID Level , disks, 0% of 0 MB used&nbsp;PS* The device was running on default confiuration, I have 4 Drives and all drives are of size 1TB each.

StephenB · Answer

khushaim&nbsp;wrote:
StephenB&nbsp;wrote:
Try powering down the NAS, and testing the drives in a windows PC with vendor tools (Lifeguard for Western Digital; Seatools for Seagate).&nbsp; Start with the short test, and if that passes run the long one.

Connecting the drives to Windows PC is not working, as Disks are not being initialized due to linux format of drives. Should installing the tools you've mentioned will be able to read the drives and process tests?As I am avoiding playing around with the drives that may increase the risk of loosing the data.
&nbsp;

Windows itself doesn't support the file system, so the drives won't mount.&nbsp; And you shouldn't initialize or format them of course.
&nbsp;
The tools will still see the drives, and the tests I suggested are read-only - not destructive.

khushaim · Answer

StephenB&nbsp;Drive 1 - Seagate - When I connect it with system, there is no sound of detection (when you connect any device to USB ports, there is a ding-ding sound, something like that) from the system. And SeaTools doesn't detect it as well, and it is not appearing in Disk Management.&nbsp;Drive 2, 3, and 4 - WD - Detected and I ran the tests using WD Lifegaurd Tools. Please see screenshots below.&nbsp;&nbsp;&nbsp;When I connect all 4 drives to the Netgear, in netgear panel, only Drive 2 and Drive 3 marked as green checkpoint (small circle), the Drive 1 and Drive 4 has grey checkpoint (small circle).&nbsp;What do you suggest?

StephenB · Answer

khushaim&nbsp;wrote:
&nbsp;
Drive 1 - Seagate - When I connect it with system, there is no sound of detection (when you connect any device to USB ports, there is a ding-ding sound, something like that) from the system. And SeaTools doesn't detect it as well, and it is not appearing in Disk Management.
&nbsp;

That suggests drive 1 has failed. That could have happened before the PSU issue, though a power surge related to the failure might also have damaged it.
&nbsp;
khushaim&nbsp;wrote:
&nbsp;
When I connect all 4 drives to the Netgear, in netgear panel, only Drive 2 and Drive 3 marked as green checkpoint (small circle), the Drive 1 and Drive 4 has grey checkpoint (small circle).
&nbsp;

Although Drive 4 is passing the tests, the RAID might be out of sync.
&nbsp;
I'd first try to boot the NAS w/o disk 1, and see if anything else changes (you can put disks 2-4 in their original slots, and boot with slot 1 empty).
&nbsp;
If that fails, you should look into data recovery - R-Studio for Windows would work, and is inexpensive. You can download it, and see if it can recovery anything before purchasing.&nbsp; Netgear also offers a data recovery service.&nbsp;&nbsp;

https://www.r-studio.com/
https://kb.netgear.com/69/ReadyNAS-Data-Recovery-Diagnostics-Scope-of-Service

&nbsp;
&nbsp;

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RNR4000 (ReadyNAS 1100) - Disks Not Readable

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