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Carlos E. R. wrote:
On 22/10/2019 17.15, James Knott wrote:
On 2019-10-22 11:06 AM, Lew Wolfgang wrote:
But note that modern high-capacity drives are charged with helium to allow the heads to fly closer to the "rust". Now I'm worried about the helium leaking out! The drives are warrantied for 5-years, but that won't save lost data.
Many years ago, I used to maintain some "head per track" hard drives that were helium charged. These drives were used for overlays (this was back before virtual memory) and needed the fast response time that head per track provided. IIRC, these drives were 1 or 2 MB, depending on the model. They were attached to some Data General Eclipse computers we had at work. Part of the maintenance was to check the helium pressure and replace the bottle when it was low.
Ah, so that's what the helium bottles were for! I never knew.
Other bottles are/were the fire extinguisher bottles. Halon?
AFAIK, halon is not used anymore (CFC gas?), but they would have very clearly marked. There would also have been breathing apparatus available as well as mandatory instruction in its use (for anyone with access). The halon bottles I have seem, in the 80s and 90s, were huge. Maybe 2 meters tall, I'm not sure. -- Per Jessen, Zürich (14.5°C) http://www.cloudsuisse.com/ - your owncloud, hosted in Switzerland. -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org To contact the owner, e-mail: opensuse+owner@opensuse.org