Groups > comp.sys.ibm.pc.hardware.storage > #2532

Re: HDD capacity stagnation

From	Lynn McGuire <lmc@winsim.com>
Newsgroups	comp.sys.ibm.pc.hardware.storage
Subject	Re: HDD capacity stagnation
Date	2012-02-01 11:30 -0600
Organization	A noiseless patient Spider
Message-ID	<jgbss4$cig$2@dont-email.me> (permalink)
References	<jg6tq4$ijn$1@dont-email.me> <qv6hi71htoeom9hspael8i2ca83021ujif@4ax.com>

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On 1/31/2012 8:05 PM, DevilsPGD wrote:
> In the last episode of<jg6tq4$ijn$1@dont-email.me>, "Tom Del Rosso"
> <td_03@verizon.net.invalid>  said:
>
>> Capacity seems to be progressing very slowly.  We were stuck at 2TB for the
>> longest time (a lot longer than we were stuck at 528MB) but when the gates
>> opened we got 3TB, and not 8TB.  Is there another obstacle?
>
> Right now we're at some physics limits with regards to densities. We
> were close to this point before, but perpendicular magnetic recording
> suddenly becoming stable/reliable helped get through the last time.
>
> That's not to say there won't be any capacity increases in the future,
> but at this point we're waiting on a breakthrough rather than an
> incremental increase. Until there is a breakthrough, performance or
> reliability suffer greatly along with significant cost increases if you
> try to ramp up density. Expect maybe 10% density increases, likely
> mostly being lost to additional redundancy in the drive (in other words,
> I'd expect to see more reliable drives before higher capacity drives)
>
> More importantly, in the consumer space, few people really need more
> than 2TB/3TB drives. In the high density storage business world,
> smaller, more power efficient drives are all the rage.
>
> Combining the current density limits with the fact that most of the
> major hard drive manufacturers are rebuilding after floods will probably
> leave us around the current range for a while. Once the manufacturers
> get rebuilt, expect to see better and faster drives at current densities
> (why build a factory to sell 500GB drives when it's the same factory
> costs for 2TB drives and 2TB drives see for more?)
>
> Given that we're up to 1TB per platter, 4TB drives should be possible in
> typical form-factors, but my guess is that 3TB drives didn't sell well
> enough to be worth investing in 4TB designs just yet.

Don't forget that the cloud systems are the number
two client of hard drives after consumers right now
(saw that somewhere but dont remember where).
    http://arstechnica.com/business/news/2012/01/the-big-disk-drive-in-the-sky-how-the-giants-of-the-web-store-big-data.ars

The cloud systems would love to have 1 PB drives.

Lynn

Thread

HDD capacity stagnation "Tom Del Rosso" <td_03@verizon.net.invalid> - 2012-01-30 15:12 -0500
  Re: HDD capacity stagnation "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-01-31 08:29 +1100
  Re: HDD capacity stagnation Arno <me@privacy.net> - 2012-01-30 22:54 +0000
    Re: HDD capacity stagnation "Tom Del Rosso" <td_03@verizon.net.invalid> - 2012-01-31 18:31 -0500
      Re: HDD capacity stagnation Arno <me@privacy.net> - 2012-02-01 05:37 +0000
  Re: HDD capacity stagnation Franc Zabkar <fzabkar@iinternode.on.net> - 2012-02-01 07:32 +1100
    Re: HDD capacity stagnation "Percival P. Cassidy" <Nobody@NotMyISP.net> - 2012-01-31 18:55 -0500
      Re: HDD capacity stagnation Joe Kotroczo <kotroczo@mac.com> - 2012-02-01 11:27 +0100
  Re: HDD capacity stagnation DevilsPGD <Still-Just-A-Rat-In-A-Cage@crazyhat.net> - 2012-01-31 18:05 -0800
    Re: HDD capacity stagnation "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-02-01 14:35 +1100
      Re: HDD capacity stagnation DevilsPGD <Still-Just-A-Rat-In-A-Cage@crazyhat.net> - 2012-01-31 21:32 -0800
        Re: HDD capacity stagnation "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-02-01 16:58 +1100
    Re: HDD capacity stagnation Lynn McGuire <lmc@winsim.com> - 2012-02-01 11:30 -0600
      Re: HDD capacity stagnation DevilsPGD <boogabooga@crazyhat.net> - 2012-02-01 20:15 -0800
        Re: HDD capacity stagnation Arno <me@privacy.net> - 2012-02-02 05:44 +0000
          Re: HDD capacity stagnation David Brown <david@westcontrol.removethisbit.com> - 2012-02-02 08:51 +0100
        Re: HDD capacity stagnation "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-02-03 13:20 +1100
  Re: HDD capacity stagnation rb <rb.57942z@no.email.invalid> - 2012-01-31 11:56 -0600
  Re: HDD capacity stagnation Lynn McGuire <lmc@winsim.com> - 2012-02-02 16:47 -0600
  Re: HDD capacity stagnation Man-wai Chang <toylet.toylet@gmail.com> - 2012-02-06 22:23 +0800
    Re: HDD capacity stagnation Arno <me@privacy.net> - 2012-02-06 19:10 +0000
      Re: HDD capacity stagnation "Tom Del Rosso" <td_03@verizon.net.invalid> - 2012-02-06 14:32 -0500
        Re: HDD capacity stagnation Arno <me@privacy.net> - 2012-02-07 08:36 +0000
  Re: HDD capacity stagnation Lynn McGuire <lmc@winsim.com> - 2012-02-07 11:48 -0600
    Re: HDD capacity stagnation "Tom Del Rosso" <td_03@verizon.net.invalid> - 2012-02-07 13:17 -0500
    Re: HDD capacity stagnation "Rod Speed" <rod.speed.aaa@gmail.com> - 2012-02-08 07:04 +1100
    Re: HDD capacity stagnation Arno <me@privacy.net> - 2012-02-07 22:30 +0000
      Re: HDD capacity stagnation Noob <root@127.0.0.1> - 2012-02-08 11:19 +0100
        Re: HDD capacity stagnation Arno <me@privacy.net> - 2012-02-09 08:13 +0000
          Re: HDD capacity stagnation DevilsPGD <boogabooga@crazyhat.net> - 2012-02-09 16:04 -0800
            Re: HDD capacity stagnation Arno <me@privacy.net> - 2012-02-10 17:48 +0000
              Re: HDD capacity stagnation DevilsPGD <boogabooga@crazyhat.net> - 2012-02-10 11:14 -0800
    Re: HDD capacity stagnation Franc Zabkar <fzabkar@iinternode.on.net> - 2012-02-12 06:23 +1100

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