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Consortium Roadmap Shows 100TB Hard Drives Possible By 2025

Posted by samzenpus on from the in-the-future dept.

Lucas123 writes An industry consortium made up by leading hard disk drive manufacturers shows they expect the areal density of platters to reach 10 terabits per square inch by 2025, which is more than 10 times what it is today. At that density, hard disk drives could conceivably hold up to 100TB of data. Key to achieving greater bit density is Heat-Assisted Magnetic Recording (HAMR) and Bit Patterned Media Recording (BPMR). While both HAMR and BPMR will increase density, the combination of both technologies in 2021 will drive it to the 10Tbpsi level, according to the Advanced Storage Technology Consortium (ASTC).

5 of 215 comments (clear)

  1. But what about by Anonymous Coward · · Score: 2, Informative

    http://hardware.slashdot.org/story/14/11/25/2027220/how-intel-and-micron-may-finally-kill-the-hard-disk-drive

    1. Re:But what about by houstonbofh · · Score: 3, Informative

      Doesn't matter. It is ten years out. This prediction won't even be on Archive.org anymore by that time...

  2. Re:How about transfer rate and reliability? by rrohbeck · · Score: 3, Informative

    WTF? HDDs have seek times in the milliseconds while total access time for SSDs is in the microseconds.

    --
    thegodmovie.com - watch it
  3. Re:How about transfer rate and reliability? by Anonymous Coward · · Score: 2, Informative

    NO. 100TB / 10KB clusters = 10 billion clusters on the SSD. Since most SSDs use SAMR3 addressing we only require 34 bits in the cluster address, At 17 bits average address resolution we have an average of 1.7ms for address bridge resolution. Once the cluster location has been ascertained we may naturally access the cluster in 10us.

    It is therefore determined that an average access will require 1.701ms.

    You are welcome for the correction.

  4. Re:How about transfer rate and reliability? by Anonymous Coward · · Score: 2, Informative

    And there is your mistake.

    The OP is assuming full cluster resolution by the bridges. But we do not have a NOR per cluster so we only need enough bridges for NOR selection. if the 100TB has 10 NORs then we only need 4 bridges to uniquely identify the NOR.

    100us access timer per electromechanical bridge * (( 4 total bridges required to cluster resolution / 2 for average) = 2) = 0.2ms + 10us for cluster access = 0.201ms.

    Much better, much faster the HDD, and no Star Trek references.