Readynas Duo v2 status Not-redundant

Question

I'm using a very old ReadyNas Duo v2 which I set up as a redundant pair of disks. However, I have just noticed it is now reporting a status of "Volume C: RAID Level X2, not Redundant. A disk failure will render this volume dead.; 1023 GB (55%) of 1841 GB used"

Both disks are reported as functioning normally.

I'm not sure when or why this happened, since it stopped sending alert emails a while ago.

I can't find anything online to advise on what I can do about this or how to set it back to redundant. Can anybody help please?

StephenB · Answer

ElChisellero&nbsp;wrote:
I have just noticed it is now reporting a status of "Volume C: RAID Level X2, not Redundant. A disk failure will render this volume dead.;&nbsp;
&nbsp;
Both disks are reported as functioning normally.
&nbsp;

Is the array syncing?
&nbsp;
ElChisellero&nbsp;wrote:
I'm using a very old ReadyNas Duo v2

What firmware is the NAS running?

ElChisellero · Answer

How can I tell if it's syncing?Firmware is 5.3.13Thanks

StephenB · Answer

ElChisellero&nbsp;wrote:
How can I tell if it's syncing?
&nbsp;

"Syncing" is re-creating the RAID-1 mirroring - copying the contents of one drive onto the other.&nbsp; If the volume is degraded and NOT syncing, then something is really wrong - generally a failed disk (despite the status you are seeing).
&nbsp;
The dashboard should tell you if the NAS is syncing.&nbsp; I'm not sure where though, as I've never owned a v2 ReadyNAS (though I do have other models).&nbsp;
&nbsp;
RAIDar will also tell you (one of the disk icons will be blinking).
&nbsp;
I suggest downloading the full log zip file from the dashboard.&nbsp; There is a lot of information in there (much more than the web interface shows).&nbsp; If you need help analyzing it, let us know.
&nbsp;
If you do not have a backup of the files, then you should make one right away.

ElChisellero · Answer

Both disks report as healthy on the dashboard, on RAIDar and on the device itself - no blinking lights.I can't see anything on dashboard about sync status.The log contains a number of historic reports of uncorrectable errors on both disks, although the most recent log is "Volume scan found and corrected errors".So I guess I need two new disks and somewhere to dump everything in the meantime?Thanks

StephenB · Answer

ElChisellero&nbsp;wrote:
&nbsp;
somewhere to dump everything in the meantime?

Definitely you need a backup of the files.
&nbsp;
FWIW, RAID isn't enough to keep your data safe, so you should always have a backup on another device for any files you don't want to lose.
&nbsp;
ElChisellero&nbsp;wrote:
&nbsp;
The log contains a number of historic reports of uncorrectable errors on both disks
So I guess I need two new disks...
&nbsp;

Probably.&nbsp; One next step (after backup) is to connect the disks to a Windows PC (either with SATA or with a USB adapter/dock) and test them with vendor tools.&nbsp; Seatools for Seagate, WDC's dashboard software for WDC.&nbsp; If you do this, power down the NAS before removing a disk (and leave it powered down until the disk is reinserted).&nbsp;&nbsp;
&nbsp;
Some disk errors can be a result of a failing power brick (not supplying enough power for the disks).&nbsp; Though I think uncorrectable errors are more likely to be the disks, and not the power.
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&nbsp;
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Readynas Duo v2 status Not-redundant

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