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Forum Discussion
readynas 204 4-bay - 1 disk not recognized
Hi, I have a 4-bay RN204. One disk of the 4 is suddenly not recognized so the entire volume has degraded. Using OS 6.10.8. Here is a screenshot of system->volume page.
In the logs, I don't see any error related to the disk, but just that its not recognized. Any suggestions for further diagnostics/resolution would help. Thanks in advance.
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The best thing you can do is pull the drive (if you do so with power on, make absolutely certain it's the right one, or you could lose your volume completely) and test it in a PC (or USB dock connected to a PC) using the drive vendor's tools.
Hi, thanks for your suggestion. I tried another disk (spare one I had), and plugged it into disk 2 drive/bay, but that is also not being read.
If I connect the existing disk 2 into the USB port of the RN204, can I include that to re-create the RAID5 with a global spare?
jnandi wrote:
If I connect the existing disk 2 into the USB port of the RN204, can I include that to re-create the RAID5
No. I guess you could do it manually with ssh, but it wouldn't be a good idea.
The best path is to first off-load all the data. Then either
- get a new NAS (probably not ReadyNAS, as Netgear seems to be exiting that business).
- or create a new volume with 2-3 larger disks, leaving bay 2 empty.
jnandi wrote:
with a global spare?
There might be some confusion here. A global spare is added to the array when the NAS detects a failure of another drive. It's not part of the array until that happens.
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