Hey guys, im in the process of adjusting and installing more fans for cooler HDD's....and was a=wanting to know what would be the best way to stress the HDD enough to see the average temps they reach , also the lowest and highest values...right now, i run a parity check which spins up all hdd and makes them work, after around 20mins, i gather this would be the max temp the hdd would start hitting at any given time?....would that be a fair call?

 

i also run smart test on my hdd's to test this also, but one of my WD disks reads the temp celsius incorrectly, its shows 100, when the web interface shows 34degress....

 

ps is 34 too hot for a HDD running at full capacity?

 

thanks in advise

Drive temperature will vary with ambient temperature.  Your drives will therefore tend to run cooler in the winter and warmer in the summer.

 

A parity check is a pretty good way to heat up the drives.  Likely it is the most active you can get all the drives at once.

 

When you look at the smart report, the "raw" value will show the temperature.  The 100 is a scaled value that isn't very useful to humans.

 

Take a temperature reading near the server to get the ambient (e.g., 68F = 20C).  Then take a reading of your drive termps after 20 minutes of parity check (e.g., 34C).  That means your drive runs 14C hotter than ambient.  Then estimate what your ambient will be during the summer (e.g., 80F = 26C).  Then add the temperature adjustment from the last step.  (e.g., 26C + 14C = 40C).  So in the summer, you might expect your drive temps to be around 40C instead of 34C.

 

Make sense?