Antec HD Cooler

Heat recently smote a disk in my Linux server. The machine had two SATA drives in the 3.5” bays. Several months ago, one of these failed. I assumed it was a typical statistical lossage and replaced the drive. The new drive failed within six months. This spurred further investigation — it turned out that SMART reported the new drive running at 67 degrees C and the older, still working drive was at 47 C. They were right next to each other.

Armed with the probable cause for the new failure, I picked up a new disk and an Antec HD Cooler and installed both in a vacant 5.25” bay.

Some observations after a day or so of operation:

The temperature sensor built into the HD Cooler matches what SMART reports from the drive. The operating temp of the new disk in its cooler is 30 degrees C. It went up as high as 33 C when I was restoring the data to it. The other disk runs at around 40 C, so moving one of the drives out of the 3.5” bay cooled the drive still there (sensible, but it was more effective than I expected). The fans in the HD Cooler don’t need to run much. They’re set to kick on at 35 C and I’ve never seen the drive above 33 C. What I have I learned?

When a disk is failing, always check the operating temps before replacing it to be sure it isn’t an obvious heat problem which will just consume another drive. Antec HD Coolers work.