We're just betatesters for TrueOS. :)and they call this stable...![]()
We're just betatesters for TrueOS. :)and they call this stable...![]()
It sure was nice and quiet, but I later found out that my disk drives were being cooked! I only discovered this as I removed drives that failed SMART test. Is there a way to monitor disk drive temps from the GUI?
Here's a shot of the X10 chassis guts in it's operational state. Note USB stick on on-board USB 3.0 connector and IBM 1015 installed. This shot also shows the 4 wire mid plane fans all wired up, but as I mentioned above, with optimal fan speed, the disk drives run way hot! You can also see that I'm not running any rear panel fans at this point. CPU and RAM temps are higher than before, but I think that is all related to mid plane fan speed. I've switched all midplane fans to full speed for now to cool down the HDs.
No wonder your drives are cooking. Looking at your SAS expander boards, they are right between your HDD's and fans. Once the chasis is sealed, very little amount of air will be able to circulate from the drives to the fans. Also, the air vents on sides are preventing the air from going through the drives because the air is trying to find the path of least resistance to the fans.
It seems whoever designed the chasis made a huge oversight unless the intent was to only cool the processor.
Terrible design I tell you.
This is the reason why those fans are running full blast.
If I follow the "Air flow direction" on your CPU fan, I must assume the air flow is from from to back, so yes, the fans are mostly there to keep CPU and motherboard components cool, regardless of the HDD.
Is there a way you can improve HDD air flow distribution? The problems are the air vents on the sides and the expander boards.
It's like adding a car exhaust pipe to a fighter jet and trying to go supersonic.
I would think those backplanes would have a better flow if air is coming form the front of the drives and escaping to the sides.
The reason why those fan are running like hell is to have an insane backpressure.
If you could ditch those backplane or find a way to relocate them and use cables to extend to the drive, you will most certainly improve you air flow. You should also be able to run much quieter too.
How are you reading your drive temps?The following are the temps of my REDs
da0=26c ; da1=25c ; da2=23c ; da3=26c ; da4=25c ; da5=23c ; da6=27c ; da7=28c ; da8=27c ; da9=26c ; da10=26c ; da11=25c
I too am running HeavyIO mode right now. Seem to be a good compromise between noise and temperature. I don't have the 2 rear fans installed at the moment, and the FreeNAS chassis is sitting upstairs right now in my office, so probably around 70 degrees ambient or so.Internal temps: CPU=37c ; PCH=33c ; System=21c ; Ram=29c
Air Temperature in unfinished, fully below grade, basement is 66F.
I'm running all 5 fans plus 2 CPU fans in HeavyIO Mode since my drives are stacked in the left side bays (backplane IDs 0-11). The 3 center fans are running at 4000, 4100 & 4500. The CPU fans at 900 and the rears at 3500.
Currently pulling 216W.
What are your other temps like?
smartctl -a /dev/da0 | grip -i temperature smartctl -a /dev/da1 | grip -i temperature smartctl -a /dev/da2 | grip -i temperature
Ah I see. I guess this is something that was introduced from 9.3. I don't plan to allow the drives to spin down, but was just curious to see what my power consumption would be if they were.It's every 8 second and that's from the .system dataset. It writes logs and statistics to the pool keeping disks active. Do a search for more info it's allover
Quick and dirty.. Create a file named "custom_smart_temps" and put this in it..
Code:smartctl -o /dev/da0 | grip -i temperature smartctl -o /dev/da1 | grip -i temperature smartctl -o /dev/da2 | grip -i temperature
Continue for each device. Type "chmod 700 custom_smart_temperature" which makes it read/writeable/executable only by root. Then run it like so..
[root@FileServ#] ./custom_smart_temps
Again, not pretty but it does the job quickly.