November 4, 201312 yr http://www.computerworld.com/s/article/9243751/6TB_helium_filled_hard_drives_take_flight_bump_capacity_50_ It took Western Digital's HGST subsidiary more than a decade to develop a way to reliably seal helium gas inside of a hard drive. It was worth the wait. 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.
November 4, 201312 yr Very interesting => but 7 platters !! These will be slower than the 1TB/drive WD Reds and Seagate NAS units ... but not enough so that it matters. It does, however, probably indicate that the forthcoming WD Red 5TB units will be 5 platter drives -- not the hoped-for 1.25TB/platter areal density that many had speculated on.
November 4, 201312 yr HGST, a Western Digital company (NASDAQ: WDC), today announced that it is shipping the 6TB Ultrastar He(6) hard disk drive (HDD). http://www.4-traders.com/WESTERN-DIGITAL-CORP-10721582/news/Western-Digital-Corp--HGST-Ships-6TB-Ultrastar-He6-Helium-filled-Drives-for-High-density-Massive-17425551/
November 4, 201312 yr Author The more platters, the higher the power drain (current) at start-up. Not necessarily... they are 38% LIGHTER than the 4TB drives. If enough of that mass savings is in the platters and spindle, then spin-up current could even be less.
November 4, 201312 yr They are not slower than 4TB, do not take more power, and do weigh less. http://www.hgst.com/HeliumProductSummary_final.pdf In case you missed it, this is kind of a response to Seagate's 5TB Kinetic, which got out about a week ago. The ethernet connected drive. http://www.seagate.com/tech-insights/kinetic-vision-how-seagate-new-developer-tools-meets-the-needs-of-cloud-storage-platforms-master-ti/
November 4, 201312 yr I, for one, welcome our 6 terabyte overlords. Funny because I'm just about to start replacing my full 2tb drives with 4tb. Bumped unRAID to 5.0, bought 4 drives, and precleared them. I expect to swap the parity drive tomorrow. If 6tb drives had been on the shelf, they would have been hard to resist.
November 4, 201312 yr I, for one, welcome our 6 terabyte overlords. Funny because I'm just about to start replacing my full 2tb drives with 4tb. Bumped unRAID to 5.0, bought 4 drives, and precleared them. I expect to swap the parity drive tomorrow. If 6tb drives had been on the shelf, they would have been hard to resist. They have only announced Enterprise drives, with no price points available. I wouldn't expect consumer-level or NAS-level drives or even "Black" level drives to be available from your friendly local ®etailer tomorrow!
November 4, 201312 yr They are not slower than 4TB, do not take more power, and do weigh less. They are indeed low power, and reduced weight => but the simple fact is a 7-platter drive with 6TB of capacity clearly has a lower areal density than the 3 & 4 TB 1TB/platter drives ==> and will thus have a lower sustained data rate than those drives. [unless, of course, they offset the lower areal density with a higher rpm ... but that does not appear to be the case]
November 4, 201312 yr http://www.extremetech.com/computing/170213-wd-releases-6tb-ultrastar-he6-the-worlds-first-helium-filled-hard-drive Because these drives are completely sealed, you can liquid cool them.
November 10, 201312 yr Oh, I forgot... One more opportunity to call for P+Q parity!!! +1 Yes! One of the top items on my modest unRAID wishlist.
November 11, 201312 yr Author They are not slower than 4TB, do not take more power, and do weigh less. They are indeed low power, and reduced weight => but the simple fact is a 7-platter drive with 6TB of capacity clearly has a lower areal density than the 3 & 4 TB 1TB/platter drives ==> and will thus have a lower sustained data rate than those drives. [unless, of course, they offset the lower areal density with a higher rpm ... but that does not appear to be the case] Only if they read from one head at a time, rather than reading the whole cylinder at a time.... if you read the cylinder at a time, adding platters while reducing areal density can actually INCREASE throughput. That's why RAIDed multi-drive slow disks can give better throughput than fast single disks.
November 18, 201312 yr Oh, I forgot... One more opportunity to call for P+Q parity!!! +1 Yes! One of the top items on my modest unRAID wishlist. didn't know what P+Q parity was, but now i've read up i want it.
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