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Re: HDD capacity stagnation

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DevilsPGD wrote
> Tom Del Rosso <td_03@verizon.net.invalid> wrote

>> 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.

Thats just plain wrong, most obviously with PVRs.

> In the high density storage business world, smaller,
> more power efficient drives are all the rage.

Not with the operations that need massive amounts of storage like google.

> 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.

They didnt all build in Thailand.

> 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.

And how well they sell obviously depends on the price charged for them. 

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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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