Posted: 11/4/2013 6:42:21 AM EDT
| Just in case you need storage - http://www.theregister.co.uk/2013/11/04/helium_drives_from_hgst/#! |
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This may be a dumb question, but if you go to all that trouble to hermetically seal the platter enclosure, why not just pull a vacuum on it and have 0 air resistance? Good question. My off the cuff guess is that the drive is pressured to roughly 14 PSIA, and that it is more difficult to maintain a seal against vacuum than it is when the pressure differential is close to zero. |
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Good question. My off the cuff guess is that the drive is pressured to roughly 14 PSIA, and that it is more difficult to maintain a seal against vacuum than it is when the pressure differential is close to zero. Quoted:
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This may be a dumb question, but if you go to all that trouble to hermetically seal the platter enclosure, why not just pull a vacuum on it and have 0 air resistance? Good question. My off the cuff guess is that the drive is pressured to roughly 14 PSIA, and that it is more difficult to maintain a seal against vacuum than it is when the pressure differential is close to zero. It's pretty common to evacuate the chamber on free-standing laboratory centrifuges. Imagine if you had to have a two vacuum pump stages to run a hard drive-- a centrifugal pump followed by an oil-diffusion pump, both of which require power to run and make a bit of noise. |
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This may be a dumb question, but if you go to all that trouble to hermetically seal the platter enclosure, why not just pull a vacuum on it and have 0 air resistance? Heat. Vacuums act as insulation and would cause the components to overheat. The hard drive heads float on a cushion of air created by the rotating platter. Take away the air and the heads become a grinder. |
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Quoted: The hard drive heads float on a cushion of air created by the rotating platter. Take away the air and the heads become a grinder. Quoted: Quoted: Quoted: This may be a dumb question, but if you go to all that trouble to hermetically seal the platter enclosure, why not just pull a vacuum on it and have 0 air resistance? Heat. Vacuums act as insulation and would cause the components to overheat. The hard drive heads float on a cushion of air created by the rotating platter. Take away the air and the heads become a grinder. |
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Correct. The heads have to FLY above the disk surface. Quoted:
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This may be a dumb question, but if you go to all that trouble to hermetically seal the platter enclosure, why not just pull a vacuum on it and have 0 air resistance? Heat. Vacuums act as insulation and would cause the components to overheat. The hard drive heads float on a cushion of air created by the rotating platter. Take away the air and the heads become a grinder. This too. |
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This too. Quoted:
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This may be a dumb question, but if you go to all that trouble to hermetically seal the platter enclosure, why not just pull a vacuum on it and have 0 air resistance? Heat. Vacuums act as insulation and would cause the components to overheat. The hard drive heads float on a cushion of air created by the rotating platter. Take away the air and the heads become a grinder. This too. Correct. Heads have a "air bearing" surface to create lift over disk |
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This may be a dumb question, but if you go to all that trouble to hermetically seal the platter enclosure, why not just pull a vacuum on it and have 0 air resistance? There isn't a seal to hold a perfect vacuum much like there isn't a seal to hold in Helium forever. It's a marketing gimmick. I wonder how long those seals hold before good ol' nitrogen seeps in to replace the helium lost. I love how the article states "of course it weighs less" 
Perhaps it does, but that is in the material used. Though they have 2 more platters so I wonder how that works on the weight savings. |
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I would guess not cheap which is a shame becuase I will be in the market for some new drives next year, my 2 3tb drives are almost full. Quoted:
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Any word on price? I would guess not cheap which is a shame becuase I will be in the market for some new drives next year, my 2 3tb drives are almost full. Stick with your 2-3TB drives until the new wizzbang technology becomes stable. I've seen this time and again with first 2tb drives and then 3tb drives, people losing their stuff. |
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What happens when the internet goes down? No internet, no cloud, no porn. Quoted:
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What's the point of hard drives for the Everyman when porn is streamin now  What happens when the internet goes down? No internet, no cloud, no porn. SHTF stash of hustlers and kinky German porn. |
side note: I got the first 1 GB drive here at my company because I was working with a lot of "large" files related to a SCADA system I developed. It cost around a thousand dollars and came in a special wooden crate mounted to special shock absorbers and surrounded by foam. Now, I have some files that are over 8GB.  ETA: My phone has 48GB. lol.
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Heat. Vacuums act as insulation and would cause the components to overheat. Quoted:
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This may be a dumb question, but if you go to all that trouble to hermetically seal the platter enclosure, why not just pull a vacuum on it and have 0 air resistance? Heat. Vacuums act as insulation and would cause the components to overheat. This. Nothing to transfer the energy. |
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Correct. Heads have a "air bearing" surface to create lift over disk Quoted:
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Heat. Vacuums act as insulation and would cause the components to overheat. The hard drive heads float on a cushion of air created by the rotating platter. Take away the air and the heads become a grinder. This too. Correct. Heads have a "air bearing" surface to create lift over disk Learn something every day. Thanks for the explanations. |
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side note: I got the first 1 GB drive here at my company because I was working with a lot of "large" files related to a SCADA system I developed. It cost around a thousand dollars and came in a special wooden crate mounted to special shock absorbers and surrounded by foam. Now, I have some files that are over 8GB.
ETA: My phone has 48GB. lol. I believe you ordered a new state-of-the-art hard disk drive?
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Quoted: Any word on price? Google says ... No. Might be shipping, but only to channel partners and distributors. Who, will then add their 5-10% to cost and get back to us on that whole "price" thing... In a couple years, you'll be buying them off TigerDirect for about $200 each. |