5 ms·
> There was a case where a fan in a compute node stopped working, and to compensate this failing fan, fans in other compute nodes started to operate at their ma
by LeonM 9y ago
> There was a case where a fan in a compute node stopped working, and to compensate this failing fan, fans in other compute nodes started to operate at their maximal speed, which then generated heavy noise and vibration that degraded the disk performance.
I've never heard of such thing, can vibrations from a fan really influence disk performance?
- blattimwind 9y agoYes. Loud noises and even yelling degrade disk performance as well. https://www.youtube.com/watch?v=tDacjrSCeq4 https://www.youtube.com/watch?v=tDacjrSCeq4
- joncrane 9y agoThis is one of the classics! I love it. Screaming at a HDD.
- godelmachine 9y agoI started screaming in my cubicle watching this.
- vardump 9y agoYes. Mechanical disks are very sensitive to vibrations.
- meuk 9y agoIn the days of burning CD's I was always told that you should be quiet and not touch the PC when you were burning. In my experience there was indeed a correlation between noise and the success of burning. I'm not sure if this is a placebo effect or not, and if this also holds for reading CD's. On the other hand, if you have a laptop with an SSD (which is non-mechanical) there shouldn't be too much sensitivity to vibrations, I think.
- janci 9y agoI remember how I didn't dare to touch the computer during burning other than move the mouse a few pixels here and there so it has it peace and the screensaver do not kick in. CDs were expensive and burnig was a hour-long process.
- jebeng 9y agoThat upgrade path from 2x to 52x was so nice though.
- gpapilion 9y agoI previously had a vendor replace hundreds of systems due to a poor fan design where they mounted it under a spinning disk. It is very surprising how sensitive they are.