August 14, 200817 yr Nah its the WD drives. If i place other drives in there they don't get that hot. Cooling is a factor but rather than add more cooling to deal with hotter than normal drives I will cure the problem and gradually replace the cluprits. TBH once i have the parity drive up and running again i don't care. If a drive breaks i will replace it. I done some searching and i cant find anything to prove or disprove the location of the temperature sensor theory. What i can say is if i pull the drives out the Samsung feel colder in my hand so it strongly suggests the readings are correct (unless i have SI calibrated fingers Would like to hear from anyone else on the temp of these drives and any issues with spin down cause at this point in time, for me at least, they are the most attractive drive easily available to me at a bargain basement cost. Some drives do run a little cooler than others (my experience is that we're talking about 2-3C). The trend is towards larger (1.5T drives are coming soon) drives, that will likely run hotter than todays 750G/1T drives. Designing a system that runs at the upper edge of the temperature envelope with today's drives is not a good idea. I would suggest that users try to get drive temps in the 30s, with the hottest drive in the upper 30s to very low 40s. That leaves some heat headroom. It has been generally accepted on this forum that anything over 45C is pushing it, and that 50C is definitely too hot. People buy unRAID because they want their data protected from loss. Talk to most anyone experienced with hardware failures and they'll tell you heat is the #1 killer. Spending a few dollars on fans and a case that allows active drive cooling is a cheap insurance against data loss! See my sig for a link to my rig. My drive temps are maxing out in the low 30s (during the summer) and upper 20s (during the winter). It is located in conditioned space where ambient temps don't get extreme.
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