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lately I updated my ultra2 to the latest firmware (6.7.4 - comming from 6.5.0), since then the fan is pulsing every some seconds. The fan goes within 1 sec from ~700 rpm to 1000 rpm and slows down then. This is pretty annoying if you sit next to the NAS.
I believe we have located the issue. There is a hardware chip that is tasked with controlling the fan speed, and we give it a target RPM. I believe the tolerance range is set too tight for some fans, and when they can't get close enough to the target it results in the pulsing action you described. Next firmware release will relax the tolerace which should resolve it.
I didn't say the update broke the fan, and it is possible there is a platform-specific bug in 6.7.x. That's why I am interested in hearing from other ultra-2 users.
But the continuous pulsing is odd behavior, and coincidences do happen.
Well it seems there is way more broken in this release then I thought.
Actually there is no network link anymore and I can't wake the NAS by pressing the power button. Fan is still pulsing. Looks like the NAS is in some kind of sleep with no chance to wake it.
If I check the Volumes tab, it seems there are some "ghost" drives installed on my NAS. Well netgear, what did you just do? Looks like OS6 is in beta stadium for ultra 2 again.
Present missing volumes in the GUI, so the records can be deleted. This can help restore app and home directory functionality if the removed volume previously held apps.
You should DESTROY them using the web ui (click on the settings wheel for each volume).
Present missing volumes in the GUI, so the records can be deleted. This can help restore app and home directory functionality if the removed volume previously held apps.
You should DESTROY them using the web ui (click on the settings wheel for each volume).
Agreed, didn't read the release notes properly. I will destroy them.
You are confusing me on this, since Netzwerk is shown in your screen shot. Do you mean something else is missing?
I did a hard reboot before I took this screenshot. I meant indeed that on the back of the NAS there was no blinking/active LED on the LAN port, neither on the first nor on the second port. Webui wasn't reachable either.
I did a hard reboot before I took this screenshot. I meant indeed that on the back of the NAS there was no blinking/active LED on the LAN port, neither on the first nor on the second port. Webui wasn't reachable either.
Interesting. But the hard reboot resolved that problem, at least for now.
I'm guessing here, but I am thinking the ultra didn't find the boot flash. I've seen that a couple of times on my RN52x systems (and it did happen on my 524x when I installed 6.7.4).
I believe we have located the issue. There is a hardware chip that is tasked with controlling the fan speed, and we give it a target RPM. I believe the tolerance range is set too tight for some fans, and when they can't get close enough to the target it results in the pulsing action you described. Next firmware release will relax the tolerace which should resolve it.
