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Forum Discussion
Solved
ReadyNAS fan speed spikes
I just recently got an RN428 unit for home use, and popped in some HDDs I had lying around for a test run with a small volume. So far, I only have 3 out of 8 bays filled, with total system temp remai...
Ok, so I finally got my hands on some new drives, namely HGST Dekstar NAS 4TB drives. Plugged them in, and had the unit recreate the volume. So far (about 4 hour in) no random fan spikes anymore, and all drives report a realistic temperature arounf the 45C mark.
The conclusion seems to be that crappy old drives with faulty temp reporting will throw off the temp snesors and cause the fans to spike every once in a while. The problem doesn't appear to be something in the unit itself. Fan speeds also seem to increase with somewhat better incremental steps if the drives do get hotter.
One of the issues with green drives is that they will put themselves to sleep. I'm not sure if they can report temperature in that mode or not. But that may also be contributing to your problem. I do not know how Netgear combines drive, system, and CPU temperatures into their fan spped control algorithm.
Ok, so I finally got my hands on some new drives, namely HGST Dekstar NAS 4TB drives. Plugged them in, and had the unit recreate the volume. So far (about 4 hour in) no random fan spikes anymore, and all drives report a realistic temperature arounf the 45C mark.
The conclusion seems to be that crappy old drives with faulty temp reporting will throw off the temp snesors and cause the fans to spike every once in a while. The problem doesn't appear to be something in the unit itself. Fan speeds also seem to increase with somewhat better incremental steps if the drives do get hotter.
Thx for following up.
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