Hell,

 

I'm new here and try to build an UnRAID 4.7 (free) with 3 HDD.

I just started preclearing the first HDD which is a Seagate ST2000DL003 (2 TB, 5900 rpm).

At first the temp was 39 C; now, at 10% of the Disk Pre-Read (cycle 1 of 1) disk temp is 45 C.

It seems to me that the temp is too high. There is no cooling for HDDs.

 

What shoul I do? Can I terminate the preclear process now?

 

Is this temp fry my HDD?

 

Thanks in advance,

Adrian

Hell,

 

I'm new here and try to build an UnRAID 4.7 (free) with 3 HDD.

I just started preclearing the first HDD which is a Seagate ST2000DL003 (2 TB, 5900 rpm).

At first the temp was 39 C; now, at 10% of the Disk Pre-Read (cycle 1 of 1) disk temp is 45 C.

It seems to me that the temp is too high. There is no cooling for HDDs.

 

What shoul I do? Can I terminate the preclear process now?

 

Is this temp fry my HDD?

 

Thanks in advance,

Adrian

Get a portable fan, have it blow across the drive.  You should see the temps drop.  45C is borderline.  I like to see all drives below 40C.

 

Otherwise, you can abort the preclear at any time.

Thank you!

 

The temp is now 46 C!!!

 

So, if I abort now is it safe for the HDD?

Thank you!

 

The temp is now 46 C!!!

 

So, if I abort now is it safe for the HDD?

It will not affect the disk in any way if you abort the preclear process now.

 

(It will not be pre-cleared, that's all)

 

The drive will be in contiguous operation for 6 to 20 hours when calculating parity or re-constructing another disk, therefore, get the disk cooling under control now. 

According to Seagate:

 

"Actual drive case temperature should not exceed 69°C (156°F) within the operating ambient conditions", so I wouldn't worry about having damaged the drive. That said, 45C is too hot, and as Joe said, under 40 is where you want to be.

 

Personally, I would finish the parity operation, but add the external fan to lower temps, as per Joe's advice. Once it's done, figure out a way to permanently lower temps (better airflow, more fan, close off leaks etc etc. TONS of good posts about how to go about this)

 

Extended operation at higher temps will reduce the lifespan of your drives, so dropping the operating temp of your system is definitely a priority...

Thank you all for your advices.

 

I brought yesterday a couple of fans; I will install them and see what I'll get.

 

 

Remember you can play with the setup a little bit. Have more fans in front of the drives for intake vs  exhaust fans, move the fans around some, or if there are a lot of vent holes in your case try covering some up as well.

Most cases assume the heat load is split between the processor, video card, and psu, with little consideration given for drives. I would advise forcing all the intake air over the drives by covering any holes that don't have exhaust fans, and making sure the drives are in the stream of incoming air, even if that means removing drive bay covers. A little creativity with cardboard and tape can go a long way in forcing the air where you want it.

Hell,

 

I'm new here and try to build an UnRAID 4.7 (free) with 3 HDD.

I just started preclearing the first HDD which is a Seagate ST2000DL003 (2 TB, 5900 rpm).

At first the temp was 39 C; now, at 10% of the Disk Pre-Read (cycle 1 of 1) disk temp is 45 C.

It seems to me that the temp is too high. There is no cooling for HDDs.

 

What shoul I do? Can I terminate the preclear process now?

 

Is this temp fry my HDD?

 

Thanks in advance,

Adrian

 

 

Listen, I've ran drives for literally years in the upper 40's and into the 50's with no problems at all. Please listen to the manufacturer of the drive. Lots of people will tell you the lowest temps in the world but there really is no proof. I looked up your hard drive line, guess what? Manufacturer operating temp of your hard drive line is 0 to 60. 45c is perfectly fine...just as 50c would be also. Not sure why everyone dismisses those numbers the manufacturer puts out and just lowers them for no reason?

 

Lots of people will tell you the lowest temps in the world but there really is no proof.

 

While I agree with you that drives can run at higher temps without issue for years, there is solid, quantifiable data that shows the average failure rate of older drives (3+ years), that run at over 40C is significantly higher. A quote from Google's 2007 paper "Failure Trends in a Large Disk Drive Population", pgs. 5-6:

Figure 5 looks at the average temperatures for different age groups. The distributions are in sync with Figure 4 showing a mostly flat failure rate at mid-range temperatures and a modest increase at the low end of the temperature distribution. What stands out are the 3 and 4-year old drives, where the trend for higher failures with higher temperature is much more constant and also more pronounced.

 

Graph link

 

This study included a hundred thousand PATA and SATA drives in its sample.

 

For the record, the paper *does* concludes that evidence suggests that contrary to the findings of previous studies, high temps have little impact on the lifespan of drives... 

 

For me, if the option is there, and it's a fairly easy 'fix', why not run an extra fan or rework your air flow to get your drives under 40C? There's no down side, and if it means your older drives could potentially last that much longer, why not do it?

 

Other Thought: If your drives are running on the warm side, there's a fair chance that your other components may be running warmer then optimal as well...

 

[EDIT] reworded conclusion slightly

[EDIT 2] Added graph

[EDIT 3] Added Other Thought