4 ms·
I was once told by a datacenter operator that this is due to the pressure change when they pump the gas in and that we should plan on replacing all HDDs should
by treffer 4y ago
I was once told by a datacenter operator that this is due to the pressure change when they pump the gas in and that we should plan on replacing all HDDs should the fire alarm go off.
...and I think it was Argon...
- tomalaci 4y agoThanks for jogging my memory! It was indeed Argon, not Halon, and the pressure issues that broke HDDs.
- treffer 4y agoAnd the other comment made me google noise vs. pressure.... Looks like Siemens did an investigation and tested various parameters (pressure, noise, vibration) independently. They point towards noise, not pressure. Really interesting as I am _sure_ I was told it is pressure. But that might be 100% wrong! https://virz.de/wp-content/uploads/2020/05/2015-White-Paper-Potenzielle-Probleme-mit-Computerfestplatten-beim-Einsatz-von-Feuerlo%CC%88schanlagen.pdf https://virz.de/wp-content/uploads/2020/05/2015-White-Paper-...
- TylerE 4y agoNoise really is just pressure, with a high frequency time component.
- samatman 4y agoThis is particularly noticeable with over-ear noise cancelling headphones. The feeling of anti-sound is quite distinctive.
- thenthenthen 4y agoIt does feel like ‘pressure’ on your ears/inside your head. Not very comfy actually
- _carbyau_ 4y agoMy partner worked in a Research School of Chemistry. On the top floor of the building a tip-over failure replacing an argon bottle broke the valve off the end and emptied the compressed lot of Argon in short order. Argon being colourless, ordourless, heavier than air = whole building "anti-suffocation" evacuation. But no fire problem!