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New uwave MAMR HDD technology for mechanical HDD to give 40TB drives
Notice the fact that mechanical hard drives last longer than SSD, a fact that's undisputed. I ended up getting a SSD for my personal computers but I backup religiously. However, when SSDs fail, they fail fast, unlike SMART monitored HDDs which often give a day or week's warning.
RL http://www.bbc.com/news/technology-41611802 While solid state drives are popular with home users, many large companies and web firms fill data centres with disks that depend on moving parts because, at high capacities, they are much cheaper and last longer. The drives store data on disks or platters that spin at high speed. A disk with a data capacity of 40 terabytes would be able to hold more than 2,500 two-hour movies encoded at a standard resolution. Western Digital said it could produce the big drives as it had found a way to increase the density of data recorded on a disk by using microwaves - a technique known as microwave-assisted magnetic recording (MAMR). The company is the first to produce a disk that uses this technology. An allied method that uses heat instead of microwaves was thought to be the best way to help HDDs grow in capacity but it is known to be an expensive and technically tricky way to boost data density. The resulting devices, whose platters must be regularly heated beyond 400C, can also suffer reliability problems. Heat-assisted magnetic recording also requires changes in manufacturing plants and the materials used to make the magnetic platters that hold data. By contrast, MAMR requires far fewer changes to manufacturing and works with materials currently used to make HDDs. In a statement, Western Digital said it had produced prototype MAMR drives this year, and would give engineering samples to key customers in 2018 and start volume production in 2019. By 2025, further refinement of the technology would push capacities past 40TB, it said. It added that a novel method of boosting data capacities was needed as it was getting harder to squeeze more data into HDDs using existing techniques. |
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New uwave MAMR HDD technology for mechanical HDD to give 40TB drives
On Fri, 13 Oct 2017 23:19:40 -0700 (PDT), RayLopez99
wrote: Notice the fact that mechanical hard drives last longer than SSD, afact that's undisputed. I ended up getting a SSD for my personal computers but I backup religiously. However, when SSDs fail, they fail fast, unlike SMART monitored HDDs which often give a day or week's warning. -- Huh? Maybe in a server situation with incessant writing - desktop usage and little foresight for redundancy -- eg change the swapfiles to a small & dedicated partition from a plattered drive -- there's no factuality or undisputableness in that. Depending on further usage patterns, at least to me, that argument could be quite to the contrary. An allied method that uses heat instead of microwaves was thought to be the best way to help HDDs grow in capacity but it is known to be an expensive and technically tricky way to boost data density. The resulting devices, whose platters must be regularly heated beyond 400C, can also suffer reliability problems. -- 400C ... That sure makes good press copy. (I'd no sooner finished reading that article on BBC to notice you posted it.) A bit alike a practicality beyond 4Ghz cores, or how many or how efficiently, if any less pertinent, code optimization actually is, (even the top model Ryzen is now "code optimized"), one might wonder where curves and skews settle in for the long haul. Surely, by now, an added weight for a less demanding, even less important market segment, the individual and home-user "PC" represents. As opposed to an enterprise industrial market, where a 40T HDD would make sense. (Everybody else, so it seems, is on Android devices, hanging out a McDonalds, for their 20-minute limit on WiFi connectivity time.) Not that switching media types, personally having migrated forward since small floppy drives, has had any repercussions, nor would I be entirely delusional to suspect there's no way, as I swear on Mount Olympus's lofty peaks, I could conceivably wrap these ears around a 40T disk and that much data. I just can't see the efficiency in going the distance, not with how and what quality data is to the WEB for non-industrial purposes;- nor can I see, in a couple or more years for WD to pull its wonder rabbit from the hat of technology, [what quality comprises to storage] in any vast sense changing;- Nor, perhaps more pertinent, can I say I would want it, especially, if it did;-- Certainly not with what software is, aside from nowhere near a paradigm of comparative magnitudes, liberally eclipsing an era of bloat, and, but of course, having diligently made all the correct tippy-toe moves, so not to have stepped upon more of types of purely malevolent or exploitive programs at present being promulgated. I did however read some dated stats for the U.S., nationally for a comparative assay of world usage patterns to computer grid power pulls;- which will pretty impressive, if WD can make a dent in that. |
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