6TB Helium-Filled Hard Drives Take Flight
An anonymous reader writes in with some exciting news if you are a storage array manufacturer with a lot of money to spend on hard drives."HGST Monday announced that it's now shipping a helium-filled, 3.5-in hard disk drive with 50% more capacity than the current industry leading 4TB drives. The new drive uses 23% less power and is 38% lighter than the 4TB drives. Without changing the height, the new 6TB Ultrastar He6 enterprise-class hard drive crams seven disk platters into what was a five disk-platter, 4TB Ultrastar drive."
Helium love to leak. How long will these have the He pressure they need to work?
I hope this caused some synapses to fire.
Actually it's deceptively hard. Helium has a way of diffusing right through an air tight seal.
It's also even harder to contain than helium - and that's quite an achievement. Hydrogen is quite happy to leak through solid metal, given a bit of time. The atoms are so small, they fit *between* the atoms of a metal, and in the spaces between crystal grains.
We're talking about small quantities. Think of how many drives you could fill with one balloon's worth of Helium.
But yes, I get seriously pissed off when I see precious helium that could've been used as a coolant for superconductive magnets (and HDD filler, it seems) being used to fill balloons. If you must absolutely have a stupid floating balloon or massive balloon parade, use hydrogen. When something happens, people will be so scared (even though a large hydrogen fire in an open space or a small one indoors aren't particularly dangerous by fire standards) they'll never want a balloon again unless it's filled with air.
Sure, it might ruin little Jimmy's birthday party, but a spectacular hydrogen fire is mostly spectacular and is not a waste of Helium.
If you ever participate in the usage of Helium you will probably be partly responsible for the day when:
a) An MRI cannot operate because its superconductive electromagnet is not superconductive because it's not cool enough - liquid Helium cools it. (Yes, there are permanent magnet MRIs, but from what I've heard, most powerful MRIs use superconductive electromagnets).
b) A particle accelerator cannot operate because its superconductive electromagnets aren't being cooled by liquid helium.
Compared to those, lower capacity HDDs are a nuisance and not having floating balloons is a miniscule price to pay.