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Miniature 5400 and 7200 RPM HDDs Reviewed

PReDiToR writes "At Tom's Hardware I found this favourable review of some remarkable Hard Drives. The article points out that with 40GB units suitable for server or desktop use, life with 2.5" drives could be just around the corner. Heat noise and power consumption are all apparently within acceptable tolerances."

59 of 235 comments (clear)

  1. Is that a hard drive in your pocket... by mikeophile · · Score: 5, Funny

    Or are you just happy to see me?

    1. Re:Is that a hard drive in your pocket... by dcw3 · · Score: 5, Funny

      Or are you just happy to see me?

      Better than than a floppy

      --
      Just another day in Paradise
    2. Re:Is that a hard drive in your pocket... by Dogtanian · · Score: 5, Funny

      Is that a hard drive in your pocket...
      Or are you just happy to see me?


      Uh, huh. All this talk of 2.5" disks is going to impress the girls even less than the normal 3.5" (*).

      Personally, I have 8", and that's just when it's floppy.

      (*) Although posting regularly to Slashdot won't impress them much either.

      --
      "Slashdot - News and Chat Sites Deviant". (Click "homepage" link above for details).
  2. USB Key's by Heartz · · Score: 5, Insightful
    With USB keys being much smaller and storage sizes increasing exponentionally,will the spinning disk still be a relavant tool for easy to carry around storage.

    USB keys are not only lighter, but you don't even have to worry about it fsckign because you shook it too much while you were on the bus.And they look waaay cooler too.

    1. Re:USB Key's by tomstdenis · · Score: 5, Insightful

      Yeah, right until after you re-write a sector that 100k'th time......

      Normal IDE disks are rated for a billion re-writes at least. [provided the motor lasts that long]. That's why "them there funny rotating disc like objects" are used to store data.

      Until they invent a lower-power [recall flash requires around 10V or higher to write, from a 3V source that's a loss!] and longer-lasting high density flash you won't see "them funny discs" replaced any time soon.

      Tom

      --
      Someday, I'll have a real sig.
    2. Re:USB Key's by fr0z · · Score: 2, Insightful

      But USB keys don't have enough space to store my pr0n...

      --
      Never underestimate the predictability of human stupidity...
    3. Re:USB Key's by Alien+Being · · Score: 4, Insightful

      "will the spinning disk still be a relavant tool for easy to carry around storage."

      It's about 100x cheaper than solid state and storage "requirements" keep going up, so I'd say yes. Disk based digital video recorders will probably catch on at some point.

    4. Re:USB Key's by Phroggy · · Score: 3, Insightful

      Find me a USB key that holds 40GB for under $200 and we'll talk.

      --
      $x='S24;r)>63/* h@<5+oZ)32"5cz';$me='phroggy'x$];
      $x=~y+ -xz+\0-Tx+;print$_^chop$me for split'',$x;
    5. Re:USB Key's by Ed+Avis · · Score: 4, Interesting

      Who's to say that USB keys will not be made containing a small hard disk?

      --
      -- Ed Avis ed@membled.com
    6. Re:USB Key's by Rolo+Tomasi · · Score: 5, Interesting
      Your points are invalid. First, where did you get the idea that flash uses more power than a hard disk? Probably not even if you compare the power consumption on a byte per byte basis. I think it's plain wrong, and the burden of proof for such an outrageous statement is on you. As to your second point, I quote:
      NAND - Flash based media uses a complex low level sector virtualization called "wear leveling algorithm" to distribute the wear evenly across the memory array and maximize the number of write cycles it can sustain.
      What this means is, your flash gizmo will beign to fail only once all sectors have been worn out. Even with heavy usage, this could take a long time, probably a decade or more, e.g. for a typical CompactFlash card. I had a 4MB CF card that I used on a daily basis for about 5 years in my Psion handheld, and I had no problems with it until I sold the Psion last year. Another factor is, the bigger the flash device, the longer it will take to wear it out. 4GB CF cards are already on the market.

      The actual point is, when carrying stuff around, there's a very high probability that it will experience some sort of impact, and you probably know what happens when you drop your hard drive. OTOH, there's no real replacement yet for HDDs in your vanilla PC or laptop. Continuous writing, i.e. having a swap file on flash memory, would probably really wear it out pretty quickly.

      --
      Did you know you can fertilize your lawn with used motor oil?
    7. Re:USB Key's by tomstdenis · · Score: 2, Interesting

      I didn't say flash takes more power. I said it takes enough power to make it non-trivial. [e.g. conversion to 10V or whatever it uses].

      Second, where do you think these "re-map" sectors come from? They're not free.

      Third, reading flash doesn't really wear it down. How much did you write to it? Also I was trying to point out that replacing a HARD DISK with flash isn't entirely viable. I mean what of the logs, swaps and other temp files routinely created [and deleted, and re-created and so on].

      Tom

      --
      Someday, I'll have a real sig.
    8. Re:USB Key's by whovian · · Score: 3, Interesting

      Good point. Don't see why not .. somehow ... eventually, considering that micro-drives are available for use with electronic equipment, notably digital cameras. It looks at though 1 GB is available now, with 4 GB perhaps this fall.

      --
      To-do List: Receive telemarketing call during a tornado warning. Check.
    9. Re:USB Key's by dsb3 · · Score: 4, Funny

      Find me a USB key that holds 40GB for under $200 and we'll talk.

      How big is your keyring? :-)

      --

      Slashdot? Oh, I just read it for the articles.
    10. Re:USB Key's by Rolo+Tomasi · · Score: 3, Informative
      Addressing your points in the order presented ...

      Sorry, can't quite follow you about the 10V thing. Yes, first generation flash chips had a Vpp of 12V, but that was about 15 years ago. The later chips all have integrated charge pumps to generate whatever voltages they need internally, so it's completely transparent to the circuit designer.

      It's not about remapping the sectors, it's about distributing the wear so that all sectors get worn out equally. Once you get an error, the flash chip is probably already breathing its last. The point is that it takes so long for all sectors to wear out that it doesn't really matter.

      The card I used had my calendar, contacts and database files on it, which got modified (i.e. written) a lot during a business day.

      Flash isn't really suited for replacing HDDs in PCs, as I said, but this thread was about USB keys vs. hard disks for carrying around storage, and my point was just that flash cards or sticks or whatever are better suited for that than hard disks, and of course that the flash memories wearing out quickly is a bit of an urban legend.

      --
      Did you know you can fertilize your lawn with used motor oil?
  3. 2.5" drives by FryGuy1013 · · Score: 5, Funny

    Hey, it's not the size that counts!

    --
    bananas like monkeys.
    1. Re:2.5" drives by AchmedHabib · · Score: 2, Funny

      That's what small people say.

  4. Power consumption by Anonymous Coward · · Score: 5, Funny
    ...power consumption [is] apparently within acceptable tolerances

    Unlike the eastern seaboard?

    'sok. I'll get my own coat.

  5. Wow! by mrselfdestrukt · · Score: 2, Funny

    What's impressive to me is that Tom's HG is still this fast , even with all of us checking out the drives. Tom must be the hardware king...

    --
    "I used to have that really cool,funny sig ,but it got stolen."
  6. What they didn't touch on is... by Colitis · · Score: 4, Insightful

    Durability. The faster the drive is spinning, the more strain on the bearings if your laptop (I'm assuming laptops are the biggest use for these right now) is moving around at all.

    I'm afraid I'd rather a slow drive that'll take all sorts of abuse - using my laptop on the bus, shuffling it around on my lap, turning it around to show somebody something on the screen etc etc - than a fast one that isn't tough enough.

    1. Re:What they didn't touch on is... by cperciva · · Score: 4, Informative

      On the other hand, smaller drives are likely to be more durable. Smaller platters means shorter arms, which means less "flapping" if you apply a shock to the drive.

      As far as the "abuse" is concerned, I think head crashes are a greater danger than bearings dying.

    2. Re:What they didn't touch on is... by VCAGuy · · Score: 2, Informative
      the more strain on the bearings if your laptop

      Most (if not all) TravelStars use FDB technology now--basically they use oil in the place of little steel balls. It reduces power consumption and makes the drives much quieter--and more stable at speeds.

      --
      Q: "Why do sound techs say 'check 1, 2'?"
      A: "Cause if they could count any higher they'd be lighting techs."
  7. 40GB? by phalse+phace · · Score: 5, Funny
    The article points out that with 40GB units suitable for server or desktop use,...

    But 40GB isn't nearly enough for all that pr0n... erm... I mean all those illegal mp3's... erm... I mean, oh never mind.

  8. Re:Wow! by Pharmboy · · Score: 3, Informative

    What's impressive to me is that Tom's HG is still this fast , even with all of us checking out the drives. Tom must be the hardware king...

    What impresses me is that /. is still quoting Tom's HG here. The last several articles I have read have caused me to lose all respect for them. All fluff, no facts, lots of generalizations, and no real useful information. This has been discussed here previously, and many are like me, and no longer bothering reading Tom's reviews.

    They used to be the king, but the king has no clothes. Sorry about the OT, but it's relevent enough if it keeps anyone else from wasting their time.

    --
    Tequila: It's not just for breakfast anymore!
  9. Meanwhile... by RMH101 · · Score: 4, Informative

    ...I just got a WD Raptor 10,000rpm SATA drive witha 5 year warranty (under 100UKP) for my desktop. Try and keep up, people!

    1. Re:Meanwhile... by Lord+Ender · · Score: 2, Funny

      Does it vibrate your entire house?

      --
      A slashdotter who didn't build his own computer is like a Jedi who didn't build his own lightsaber.
  10. slightly ot by fyonn · · Score: 4, Interesting


    what I'm thinking might be interesting for doing servers on the cheap would be to do raid arrays with usb based drives. 2.5" drives are small and low powered enough to be powered completely via the usb bus, usb2 (well, the version of usb that does 480mbps) has enough bandwidth, if you dedicated one usb controller per drive and had your 2.5" drives each mounted in a small metal container with a ide2usb adaptor in it then you would have a nice, cheap raid array with easily removeable drives. usb controllers cost buttons and you could either do software raid or even a hardware controller which could be built for the purpose.

    it could be alot cheaper than removeable scsi drives, the raiding software could mark the drives so that they can be put in in any order.

    what do you folks think?

    dave

    1. Re:slightly ot by patch-rustem · · Score: 2, Insightful
      what I'm thinking might be interesting for doing servers on the cheap would be to do raid arrays with usb based drives...

      Put down the crack pipe, sir, and move away from the keyboard.

      --
      Karma: Bad due to google bombing - Robert Watkins woz 'ere.
    2. Re:slightly ot by jtcampbell · · Score: 3, Insightful

      USB speed is highly dependant on the processing power of the "host" computer. This is one of the main things that differentiates it from firewire. So whilst you may be able to do this you may well need another processer per drive or something silly like that. This would obviously drive up the cost a lot.

      Also the cost of all those IDE->USB converters and custom "USB raid controller" is likely to push the cost of the array above that of a (much better) SATA or even SCSI one.

      You'd be much better using SATA. It's designed for this sort of thing.

    3. Re:slightly ot by bobintetley · · Score: 2, Informative

      raid arrays with usb based drives...

      Didn't someone do this already?

  11. 5600rpm? by stevenrieder · · Score: 5, Informative

    I believe that's 5400 rpm...

    --
    Hier staat een stukje tekst.
    1. Re:5600rpm? by x136 · · Score: 4, Funny

      You don't overclock your hard drives?

      --
      SIGFEH
    2. Re:5600rpm? by evilviper · · Score: 3, Funny

      Well, 5600 would technically be correct, as long as your Laptop continues to spin at 200RPM (and in the same direction as your hard drive, and while the Laptop is powered-on).

      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  12. The connoisseur's view by vevva · · Score: 5, Funny

    Much as I admire 40Gb in a 2.5" package I'm going to stick with my 100kb 8" floppies. I find the quiet modern drives don't have the same sound quality as the original 8" floppies. It's the whirring sound and the "kerchink" as I swap floppies 3 times per mp3 that adds depth to the listening experience. Nope.. these new fangled drives have no place in the system of a true connoisseur. (PS If any of your readers have replacement valves for a Collossus Mk 1 I would like to hear from you).

    1. Re:The connoisseur's view by Bushcat · · Score: 2, Funny

      Floppy disk RAID system here for the cutting-edge Luddite.

    2. Re:The connoisseur's view by Pharmboy · · Score: 3, Funny

      It's the whirring sound and the "kerchink" as I swap floppies 3 times per mp3 that adds depth to the listening experience.

      If you love the "kerchink" of an older floppy drive, I have some older ZIP drives for you that you will LOVE, with a quite distict "CLICK" sound....price negociable or best offer. :D

      --
      Tequila: It's not just for breakfast anymore!
    3. Re:The connoisseur's view by evilviper · · Score: 2, Funny

      I certainly know the feeling... I never got over the love of hearing MFM hard drives.

      Now I just sit right next to coffee makers, which have some audible similarites to the good old drives.

      You know, I still have a couple sitting around... Maybe it's time to find my old 286, plug it in, watch as my electric bill goes through the roof, and spend about an hour recording the sounds of MFM drives. I may even make a CD out of it, and sell it to geeks trying to fill a void in their lives, caused by the disappearance of MFM drives.

      --
      Slashdot gets worse every day... Pipedot: News for nerds, without the corporate slant
  13. Interesting, but what does it cost? by dphoenix · · Score: 5, Insightful

    You have to remember .. the "cost" figure is strangely omitted anywhere from his review. People will pay for performance, but only within reason! However, inevitably, price will drop on these things and you will see smaller systems (tablets, tiny desktop pcs, consoles). It would be nice to make an even smaller media center PC using one of these.

  14. Bigger & faster, but not in my notebook by Bushcat · · Score: 4, Interesting

    I routinely upgrade drives in my various notebooks, but I've discovered a drive in an external case can be much faster than swapping out the internal drive. To get maximum benefit out of the newer 7200rpm drives, one needs to use Mode 5, right? Do any current notebooks do that?

    Hitachi have piles of info available on their drives here, and a discussion of 7200rpm drives here. The IBM legacy shines through.

  15. What about iPod hard drives? by __aavhli5779 · · Score: 2, Interesting

    These hard drives are truly remarkable in size. It makes me wonder what the deal is with the hard drive inside Apple's iPods. The largest one can fit 30 gb and a firewire controller into an enclosure the size of a deck of cards, and may indeed be one of the 2.5" hard drives reviewed in the article, or at least in the same class.

    I can only imagine what an array of 40 of these bad-boys inside a rack enclosure could provide in terms of storage and redundancy. :)

    1. Re:What about iPod hard drives? by Bushcat · · Score: 3, Informative

      You're limited to 1.8" drives, which basically means Toshiba, topping out at 30GB with the MK3004GAH, a 4200rpm unit with slow access.

  16. For Non-USians: The drive is 63.5 mm by Anonymous Coward · · Score: 5, Funny

    That's more likely to impress the ladies.

  17. Oh please by Gherald · · Score: 3, Insightful

    There are a lot of comments up there saying this will allow for smaller desktops, etc.

    I don't think that is realistic. For the price you pay, 2.5" drives are horribly inefficient, and nowhere near as fast as 3.5" models.

    Pretty much all 2.5" get used for now are notebooks and MP3 players.

    Maybe as Mini PCs become more popular and mature these drives will get some use there. But this is hardly something to write home about.

    1. Re:Oh please by MarcQuadra · · Score: 2, Informative

      the only reason they perform so badly is because there's no decent buffering in ATA drives. With Tagged Command Queing and big prefetch and write buffers they could perform well at all but transferring very large data files (not a common case on most desktops, BTW).

      Also, why don't modern operating systems aggressively prefetch file system metadata and keep it in cache? It seems to me that with most systems having more than adequate RAM it would make sense to keep the entire directory listing and metadata cached. I think Reiser4 has a method to determine how 'hot' a directory is based on how often it changes, there should be a way to tell the kernel you want to aggressively prefetch indexes for all objects on '/dev/hd?' with 'heat=>2'.

      --
      "Sometimes, I think Trent just needs a cup of hot chocolate and a blankie." -Tori Amos on Nine Inch Nails
    2. Re:Oh please by bjschrock · · Score: 2, Informative

      For the price you pay, 2.5" drives are horribly inefficient, and nowhere near as fast as 3.5" models.

      Talking about the models reviewed, yes, but that's soon to change, very soon. Seagate's Small Form Factor drives will be around next year. At 10,000 rpm and with a U320 SCSI, Fibre Channel, or Serial-Attached SCSI interface, they're as fast or faster than most of the 3.5" drives out there. The platters in the 3.5" enterprise drives are as small as the ones in the 2.5" anyway, and you'll (almost) be able to fit 4 2.5" drives in the space of one 3.5".

  18. Re:X-Box 2 anyone? by kinnell · · Score: 2, Funny
    plus the added weight keeps it from falling to the floor

    It also stops it from blowing away in a strong breeze

    --
    If I seem short sighted, it is because I stand on the shoulders of midgets
  19. Re:Very Nice by Pharmboy · · Score: 4, Insightful

    It will lead lots of different things
    Like smaller desktop PC'S etc.


    Yea, and hover cars. We have been promised smaller computers for 20 years now and the closest thing we have in mass production is a Dell Opti (not bad, I have one). 98% of all pci cards are still the same height as the original ISA (and S100 for that matter). The industry has put more energy into mod cases than smaller designs, and really we have to blame ourselves, since they make what we will buy. While having an aquarium built into your case has a certain degree of cool factor (inverse pun intended) we won't see smaller desktops until people DEMAND them.

    We already have the technology and components to make very small and still powerful computers (ie: laptops) but people would rather spend the extra $300 (for the same power) on case mods or better speakers. Perhaps once LCD screens become standard equipment, smaller computers will become more in vogue. Until then, the size of a mid tower doesn't look so big compared to a 19" CRT. Personally I can't wait for computers the size of a CDROM drive, with midlevel+ power, I'm just not holding my breath.

    --
    Tequila: It's not just for breakfast anymore!
  20. smaller != better by meshko · · Score: 3, Insightful

    Even full size harddrives have gotten much less reliable lately. I assume this is because the data density keeps growing. I would rather buy a hard drive which is slightly bigger (I guess it would have to be more platters because making the radius bigger will make seek times longer?) but will last for more than 2 years.

    --
    I passed the Turing test.
  21. Re:With 20k rpm scsi drives.... by MarcQuadra · · Score: 2, Informative

    AFAIK the transfer speed of 10,000 and 15,000 SCSI drives isn't so far ahead of the 7,200 offerings, the improvement is in the latency. I have a SCSI system here at home and the combination of low-latency and tagged command-queing (buffering of future disk requests) lets applications start up lightning fast. Loading video and MP3 files is actually faster off the ATA drive though, as it has a higher raw transfer speed.

    What would be really useful for workstations in this day and age are 16MB buffer 2.5" 5400 RPM disks running SATA with TCQ. An intelligent pre-buffering system to keep the 16MB buffer full of anticipated data would help the drives perform as well as 7200 RPM drives, and the lower heat generation and power requirements would boost corporate adoption. I'll bet that after a short while these drives could even be cheaper to produce, as there would be about 1/6th the raw materials needed; the only reason they cost more now is the lower volume.

    --
    "Sometimes, I think Trent just needs a cup of hot chocolate and a blankie." -Tori Amos on Nine Inch Nails
  22. Re:Very Nice by Delifisek · · Score: 2, Insightful

    Hmmm I'm not talk about people who wants aquarium in his pc case.

    I'm talking about small PC cases, or think how many of this 2.5 7200 rpm drives can fit 1u rack server ?

    Also you point about size of PCI and AGP cards. So I'm asking is your VGA do same job your good old VLB cirrus logic card ? Or what. You may look at size of Realtek network cards. Or you may check Linux on chip systems. If Hitachi or Seagate can produce 73 gb SCSI 10.000 RPM 2.5 drive it will lead another options for the system builder.

    And remember, if USA live another power shortage goverments may think raise of power prices.

    Also I'm not asking to you hold your breath.

    --
    [My english is better than most other people's Turkish, so please point out mistakes politely. Thank you.]
  23. A couple of points... by Anonymous Coward · · Score: 5, Insightful

    I am a storage consultant so I kinda know what I'm talking about here (just thought I'd get that in before I get slagged off) and assuming that you're not totally joking...

    1) The technology used within USB type memory keys is only good for about 10000 write operations max.

    2) They are very expensive

    3) I don't see any USB -> Fibre Channel converters and none of my suppliers have them on their hardware roadmaps (can't think why)

    4) They are staggeringly slow, even if you RAIDed a thousand of the buggers.

    5) If anyone took one of these keys into a datacentre in which I was responsible for the storage, I would do some painfully biological things to them.

    6) In modern datacentres the mass storage (and quite offen the local system disks as well) are supplied from a consolidated disk array which is hung off a fibrechannel network almost nobody who is anybody does JBOD for mass storage any more.

    7) RAID shouldn't ever be controlled by software for serious users

    8) can't be arsed to go on, but you get the general idea...

    1. Re:A couple of points... by dissy · · Score: 4, Informative

      Ok, here's a positive reply.
      Ive started on this very thing myself, using firewire however.

      Unfortunatly I started getting all sorts of ideas and tacked them on, and now 'cheapie' is out of the question.

      I built a system with 4 firewire buses just for disks.
      I also chose not to power the disks from the firewire bus (explained bellow why)

      The master plan is to have 6 firewire buses (two groups of three, and they only had dual bus cards, thus why i have 4 ports now.. One is not used yet, and will be used with the 3rd dual fw card i do not yet have)
      These three buses connect to firewire hubs.
      Then, you connect three disks per hub.

      Now is the confusing part.
      On bus A, you have 3 disks. These are disk A from 3 different raid-5 groups.
      Bus B has 3 disks which are disk B of the same raid-5 groups. and so on for C.

      Then you setup a raid 5 group out of just those 3 disks. Which in this case gives me 3 groups, and with the 3rd firewire card (bus 5 and 6) this concept will double.

      Then you use LVM to link all of the raid-5 groups together into one big volume.

      Reasonings:

      If any one firewire bus failed (or was unplugged) only ONE disk from each raid-5 group is offline. Raid-5 can survive this.

      I dont use power over firewire because a) the PCs supply can not handle all of that, and b) I now have 3 power supplys, each one chained to the disks in the same order as the firewire buses. This way if a power supply failed, it only takes down one disk per raid-5 group, and again raid can survive that.

      Firewire is multi-host (IE you can have more than one host controller on the same bus) so with two computers on the bus, doing heartbeat monitoring over a serial link between them, if a computer failed, the other can pick up the disks on the bus and continue file serving.

      Using LVM to link the raid 5 groups together means after i start getting disk failures 4-5 years down the road (well, hopefully that long) and it starts to get hard/expensive to find disks of the size i am currently using, I can move the data off the raid-5 group to unused space, and decomition that group. Then it can be pulled off the bus, and replaced with current newer disks which ideally will be much higher capasity, without replacing ALL the disks in my array (as would be the case with a single raid-5 array of all the disks)
      Then you recycle the failing disk, and have two disks spare to use for other machines (IE a mirror to boot a new machine off of, spare single disks, etc)

      Some links you may find interesting:

      - http://www.fwdepot.com/
      Best source of firewire controllers, bridgeboards (firewire -> IDE, firewire -> scsi, usb->ide, enclosures, clamshells you mentioned, etc etc)

      - http://evms.sourceforge.net/
      EVMS = Enterprise Volume Management System. Linux software that lets you manage raid, lvm, clustering, etc all from a server setup. Comes with cli, curses, and X11 interfaces. Not quite 100% there yet, and still has a couple problems for enterprise use, but almost all of them are related to the 2.4 kernel and promised to be fixed when 2.6 is out/stable (and in the past month very well could have been, i havent been keeping up)

      (Please please dont slashdot my poor little file server here!
      If anyone would like to mirror, its ok with me. This is a p2 200 and will die if more than a few peope hit it at once)

      - http://photo.brokensphere.net/index.cgi?mode=view& album=home/fileserver
      (Watch for slashdot injected spaces!)
      This is pictures of some of the parts at the start of my project.
      Havent added new picts yet, nor had much time to work on it.
      These picts show the disks all on one bus and interlinked, which is not good for speed, but I was just testing the EVMS software at the time.

      In the end, I plan to make my own case, which may be a sheet of half-inch think wood screwed into a wall, with disks hanging on it as so their tops face out, and a plexigl

  24. Re:Laptops feel so slow... by vudufixit · · Score: 2, Insightful

    I'd like to see effort put into making batteries that last longer. Those methanol fuel cells have been two years away for five years now.

  25. HP has plans for 2.5" server drives by Anonymous Coward · · Score: 5, Interesting

    According to a server roadmap that HP presented at HP World this week, HP is planning to standardize on 2.5" drives in new Proliant servers in the 2004-2005 timeframe. The reason that was given is that with platter sizes getting so large on 3.5" drives and leading to larger drive capacities, customers want smaller drives for their servers for performance purposes. By switching to 2.5" drives, HP can offer more drive spindles in the same space that current 3.5" drives reside in. I didn't think to ask the presenter about drive speeds, however, since it was an end-of-day presentation, but I'm sure the gains from increased spindle counts don't come anywhere close to making up for the slower RPM's of the current and near-term 2.5" drives. BTW, this was an NDA presentation, thus the reason for the AC posting.

    1. Re:HP has plans for 2.5" server drives by amorsen · · Score: 2, Interesting
      Today's SCSI drives are almost exclusively 2.5" and smaller. They just come in big packages... That is, internally the platters and electronics are easily small enough to fit in a 2.5" drive (taller than notebook drives admittedly).

      It will be interesting to see if 2.5" server drives will arrive as parallel SCSI, serial SCSI, or SATA first... Either way, 2.5" 15k drives are just around the corner. They will not work in a normal notebook though; it would melt.

      --
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  26. Re:USB Keys with HDs - already happening by b-baggins · · Score: 2, Insightful

    Transferring 1.5 GB over USB?!? I think not. Firewire 800 maybe...

    --
    You can tell a great deal about the character of a man by observing those who hate him.
  27. Autonomous Computing? by fygment · · Score: 2, Interesting

    Right our university has a mix of Unix and Win2K computers with different settings as you go from dept to dept. All I/O is to floppy or some rather rare CD RW.

    It would be nice if all the university computers were without a HD. A student would be issued a 2.5". To log on, insert the drive into a bay (like a 2.5" slot or something) on a computer. Voila the computer boots to your personal settings with all I/O going to your drive. Done, pull the drive and walk away. Any computer you use will always give you the same environment.

    Just a thought that seems closer with these size drives.

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    "Consensus" in science is _always_ a political construct.
    1. Re:Autonomous Computing? by derrith · · Score: 2, Insightful

      the problem with using 2.5" drives for user customised machines is that EVERY machine has to be exactly the same as next one. Well, not exactly, cpu and ram can be different. However, Motherboard, video card, whatever peripherals, sound cards (if any) would need to be exactly the same as win2k and unix do not take so kindly to hardware chaning on them from one bootup to another. what may work is a FAT32 home partition on the unix boxen which will just pop up as another drive on the 2k boxen. just my thoughts on the matter.

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      why does the porridge bird lay his eggs in the air?
  28. Below cost by SuperKendall · · Score: 2, Interesting

    You might have a point except that if you try to buy a Toshiba HD all by itself, it ends up costing about the same as the iPod that contains the same model...

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    "There is more worth loving than we have strength to love." - Brian Jay Stanley
  29. Re:Wow! by sharkey · · Score: 2, Funny
    Either that, or Pair Networks know what they're doing.

    They must, to stand up to Slashdot linking to a site that measures content in pages per sentence, rather that sentences per page.

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    "Outlook not so good." That magic 8-ball knows everything! I'll ask about Exchange Server next.