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Forum Discussion
ReadyNAS Pro: System fan "spiking"
Hey,
I have recently purchased a ReadyNAS Pro Business and it's has been running 3 1TB harddrives fine for a couple of days now, though I am having somewhat of a problem with the fans. Most of the time (>90%) the fans are running "quiet" at ~1100 rpm (sys) / 1500 (cpu) and the temperatures (44 harddrives and sys / 29 cpu) are stable. However, now and then the system fan spikes and goes up to 2000 rpm even though there are no temperature changes (still stable at 44).
The system fan can get stuck in the high rpm "mode" which makes quite a high noise level, a recalibration solves the problem and makes the fan go down. Does anyone have any idea why this is happening? I am thinking of a fan replace but I'm guessing that the problem resides more in the fan control than the fan itself?
Thanks in advance
Daniel
I have recently purchased a ReadyNAS Pro Business and it's has been running 3 1TB harddrives fine for a couple of days now, though I am having somewhat of a problem with the fans. Most of the time (>90%) the fans are running "quiet" at ~1100 rpm (sys) / 1500 (cpu) and the temperatures (44 harddrives and sys / 29 cpu) are stable. However, now and then the system fan spikes and goes up to 2000 rpm even though there are no temperature changes (still stable at 44).
The system fan can get stuck in the high rpm "mode" which makes quite a high noise level, a recalibration solves the problem and makes the fan go down. Does anyone have any idea why this is happening? I am thinking of a fan replace but I'm guessing that the problem resides more in the fan control than the fan itself?
Thanks in advance
Daniel
8 Replies
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- I too experience this same issue. It has gotten very frustrating and would like to know if there is any way to regulate the system fan speed to prevent this.
- Are all three HDDs at 44C, or are some lower? From what I've seen on an Ultra 4, if the average temp of all disks is 44C or higher, fans go full speed.
- if disk temperature > 45, Fan speed will increase, then FAN will reduce speed until disk temperature < 43.
For seagate disk, it is +5 degree C. - Well I have (4) Seagate 3TB disks, that are rated at 60C, and the ReadyNAS still spikes the fan at 45C.
- All 6 disks show a temp of 38C, I've never seen them over 42C. Is there any other reason why the system fan would randomly climb high and stay there? The RPMs will rise to over 2100 and fan noise is very noisy. Any help is appreciated. I am running RAIDiator 4.2.21, I was running 4.2.22 and downgraded hoping it would cause the fans to slow to normal. I have another ReadyNAS Pro with 6 disks with 4.2.21 and the system fan has never been an issue.
- Here the same problem. 2 Readynas systems. 1 which keeps running the system fan at 2100 rpm. Recalibrate slows it down, and after some time it goes back up again.
Is there any solution yet? - I have a ReadyNAS NV+ v2 running Radiator 5.3.8 with 2 3TB hard disks installed.
The temp of the disks are 42 & 37 degrees and the fan is spinning at 3320rpm.
It seems to run like that when I access the disk at all for anything and goes away once I reboot the NAS.
I have even set the disk spin down after 10 mins and it hasn't helped.
Anyone got any suggestions or can I roll back to a previous firmware because it seems to have happened since an update.
Cheers - I've rolled back to version 5.3.5 and the problem is not happening anymore but it's prompting me for a firmware update again to 5.3.8
Any more news on it?
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