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Groups > comp.sys.ibm.pc.hardware.storage > #2534

Re: HDD capacity stagnation

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DevilsPGD <boogabooga@crazyhat.net> wrote:
> In the last episode of <jgbss4$cig$2@dont-email.me>, Lynn McGuire
> <lmc@winsim.com> said:

>>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.

> I doubt they care. Rather, they care about the cost:efficiency ratio,
> where cost factors in the original purchase price and energy consumption
> over it's lifespan (including cooling) vs some combination of
> performance and size. Physical size and formfactor is also a factor, of
> course.

> In other words, I agree, but it's more complicated than just saying "a 1
> PB drive"

> Sure, large drives would be great, but only once they beat out the price
> point that modern drives achieve.

I think another issue is more problematic: I/O bandwidth to
capacity ratio. It has gotten worse and worse over time for
HDDs. Not a surprise as data-density increases on a plane,
while r/w is done on circles. Unless you have rare access 
for most data, large disks are not very useful. Now, "the
cloud" (stupid term, it really is just client-server computing),
may turn out to be a gigantic data-heap, in which case the more
capacity, the better, but I somehow doubt that, as it clearly
is unreliable as a storage solution. These days, Megaupload
demonstrates the fundamental problem. It also demonstrates
thet "the cloud" is really a number of different special-purpose
clouds. For storage, large capacity may matter, but see the
lack of maturity of the whole idea. For computing, I do not
see this at all, and neither for presence (web-server, e.g.)
clouds.

Side note: The main selling-point for SSDs is that they
have a far saner I/O to capacity rating. This also explains
why they sell so well, despite being massively more expensive.

Arno
-- 
Arno Wagner, Dr. sc. techn., Dipl. Inform., CISSP -- Email: arno@wagner.name
GnuPG:  ID: 1E25338F  FP: 0C30 5782 9D93 F785 E79C  0296 797F 6B50 1E25 338F
----
Cuddly UI's are the manifestation of wishful thinking. -- Dylan Evans

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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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