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A Google study about hard drive failure indicated that they couldn't find any conclusive relationship between temperature and failure rate. However, they did m
by drv 15y ago
A Google study about hard drive failure indicated that they couldn't find any conclusive relationship between temperature and failure rate. However, they did mention it had some effect at the extreme high end of the temperature spectrum (based on the graph, above 45 °C or so).
http://static.googleusercontent.com/external_content/untrusted_dlcp/labs.google.com/en/us/papers/disk_failures.pdf http://static.googleusercontent.com/external_content/untrust...
- barrkel 15y agoIt doesn't take a huge amount of work to drive a disk over 45 degrees. Using 5K drives helps a lot, since many 7K drives will idle at 35 degrees in a room temperature environment and passive airflow. I've seen actively cooled 7K drives in my ZFS NAS start giving checksum errors while silvering (i.e. recalculating parity etc.) after replacing a bad disk; smartmon reported temperatures of about 60, IIRC. Using an LSI 8-port SATA controller, I was silvering a 4-disk raidz at a rate of perhaps 300MB/sec, and it was making the drives too hot. I had to fall back to the motherboard SATA connectors (and ~150MB/sec array throughput) to keep things cool enough to complete.
- derobert 15y agoIf your active-cooled drives are getting that hot, then something is very wrong with either your ambient room temperature (is it 40°C?) or with your active cooling. Active cooling in a reasonable-temperature room keeps even 15K drives well under 40°C at full duty (closer to 30°C, really, according to our monitoring data I just looked at, the room is around 20°C). Keeping drives within 15°C of ambient shouldn't be a huge deal (though it can be noisy).