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Your hint to RMA is welcome, but now I have ordered a RN424. If the noise persists, I have to determine, which disk it is and replace it and the old chassis will become a backup device, replacing my much older RNDU2120.
I do get the plan. But if turns out to be the chassis, you could still do an RMA of the old one (and use the RMA as the backup). Just a thought.
Yes, you can move your 4 existing HDDs to the new RN314 without losing your data. You just need to make sure that you put the disks on the same slot. You may refer to this article for reference.
Yes, you can move your 4 existing HDDs to the new RN314 without losing your data. You just need to make sure that you put the disks on the same slot.
Note you can directly migrate to any RN31x, RN42x, RN52x, or RN62x, as long as it has at least four bays.
The warranty on the RN314 is 5 years for the original purchaser - if you are still covered, you could request an RMA. Though it'd be good to confirm that the issue is the fan, and not the disks.
You could also replace the main fan in the RN314 (though that's not something I've done).
Shouldn't I see harddisk errors in mail or at least SMART-display? There everything seems OK.
Not always. I've had disks that make abnormal noises that don't report SMART errors or disk i/o errors. Disks that do that should still be replaced. There is some troubleshooting info from WD on this here: https://support-en.wd.com/app/answers/detail/a_id/16309
You could try powering down, removing your disks (labeling by slot), and then boot up the NAS diskless - then see if you hear the same noise. If you have a spare disk, then do a factory install with just that disk in place (slot 1). That will engage the normal fan management (which I think won't happen if the system is diskless), and would give you another indication as to whether the problem is with the chassis or the disks. BTW, make sure you reinsert your drives into the NAS when it is powered down.
Though some disk models are inherently quieter than others, and of course four disks will be noisier than just one. So it is possible that the noise is coming from the disks, but is normal. It is also possible that the chassis fan is running faster than usual because something is overheating (a disk or something on the system board). And of course dust could be blocking the air flow. What disks are you using?
The noise (fast, ~120bpm: tack,tack,tack,...) is only sometimes, very low and started about 3 or 4 days ago.
I have attached a system screenshot where you can see my disks, too. All 4 disks are WDC and about the same age.
Dust is very likely. I will see, when I open it tomorrow.
Your hint to RMA is welcome, but now I have ordered a RN424. If the noise persists, I have to determine, which disk it is and replace it and the old chassis will become a backup device, replacing my much older RNDU2120.
Your hint to RMA is welcome, but now I have ordered a RN424. If the noise persists, I have to determine, which disk it is and replace it and the old chassis will become a backup device, replacing my much older RNDU2120.
I do get the plan. But if turns out to be the chassis, you could still do an RMA of the old one (and use the RMA as the backup). Just a thought.
