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Groups > comp.sys.ibm.pc.hardware.storage > #6425

Re: Cannot access new Seagate external HD

Cross-posted to 2 groups.

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http://www.seagate.com/support/downloads/beyond-2tb/
http://www.paragon-software.com/hgst/index.html

You must use some windowed or overlayed access to the >2TB disk.  There
have been disk managers like this for long time: another showing every
time another disk or BIOS boundary gets hit as manufacturers keep
producing bigger disks.  Some do not run as a driver inside of the OS
but instead usurp the MBR bootstrap code.  They overcome the MBR
partition record limitation of 2^32 but how is FM to me.  I can guess
they use the same old windowed approach used long ago when the 640KB
memory barrier was broken (remember QEMM and MS EMM?).  Some do work as
drivers inside the OS.  They don't usually tell you how they function.
They give you descriptions like:

http://www.seagate.com/staticfiles/support/docs/MB615_1102_US(2).pdf

Looks like that one works by installing a driver in Windows to handle
>2TB partition sizes.  However, that still limits the partition to 2TB
but will slice up the remaining disk space into more 2TB partitions and
will let you have more than two 2TB partitions.

"The driver will mount the remainder capacity above 2.1TB as a new drive
letter, usually D:. This new drive is also limited to a maximum of
2.1TB, so this will be repeated as necessary. A future 6.6TB drive will
have three drive letters—C: managed by native Windows drivers; D: and E:
drives managed by the DiscWizard driver."

Somehow their driver allow access to all of the disk beyond 2TB (and
mentions 6TB disks) but your partitions (drives) are still limited to
2TB each.  Your layering in software to handle what the OS and/or BIOS
cannot handle.  I prefer hardware solutions, if available, like getting
a UEFI mobo and using a newer OS that are designed to pair well.

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Thread

Cannot access new Seagate external HD Terry Pinnell <me@somewhere.invalid> - 2015-09-10 19:20 +0100
  Re: Cannot access new Seagate external HD Chronos <usenet@chronos.org.uk> - 2015-09-10 19:50 +0100
    Re: Cannot access new Seagate external HD Terry Pinnell <me@somewhere.invalid> - 2015-09-10 20:11 +0100
      Re: Cannot access new Seagate external HD Terry Pinnell <me@somewhere.invalid> - 2015-09-10 20:46 +0100
        Re: Cannot access new Seagate external HD Terry Pinnell <me@somewhere.invalid> - 2015-09-10 21:07 +0100
          Re: Cannot access new Seagate external HD Chronos <usenet@chronos.org.uk> - 2015-09-10 22:10 +0100
          Re: Cannot access new Seagate external HD Mike Tomlinson <mike@jasper.org.uk> - 2015-09-11 00:22 +0100
      Re: Cannot access new Seagate external HD Mike Tomlinson <mike@jasper.org.uk> - 2015-09-11 00:16 +0100
        Re: Cannot access new Seagate external HD Terry Pinnell <me@somewhere.invalid> - 2015-09-11 07:16 +0100
          Re: Cannot access new Seagate external HD Daniel James <daniel@me.invalid> - 2015-09-11 15:17 +0100
          Re: Cannot access new Seagate external HD Shadow <Sh@dow.br> - 2015-09-11 11:30 -0300
          Re: Cannot access new Seagate external HD Mark Perkins <mark@none.invalid> - 2015-09-11 09:35 -0500
            Re: Cannot access new Seagate external HD Mike Tomlinson <mike@jasper.org.uk> - 2015-09-11 21:22 +0100
  Re: Cannot access new Seagate external HD Shadow <Sh@dow.br> - 2015-09-10 16:18 -0300
    Re: Cannot access new Seagate external HD Terry Pinnell <me@somewhere.invalid> - 2015-09-10 21:08 +0100
  Re: Cannot access new Seagate external HD Ed Light <nobody@nobody.there> - 2015-09-10 14:30 -0700
  Re: Cannot access new Seagate external HD micky <NONONOmisc07@bigfoot.com> - 2015-09-10 21:17 -0400
    Re: Cannot access new Seagate external HD Terry Pinnell <me@somewhere.invalid> - 2015-09-11 07:23 +0100
  Re: Cannot access new Seagate external HD VanguardLH <V@nguard.LH> - 2015-09-10 21:11 -0500
    Re: Cannot access new Seagate external HD Daniel James <daniel@me.invalid> - 2015-09-11 15:17 +0100
      Re: Cannot access new Seagate external HD VanguardLH <V@nguard.LH> - 2015-09-12 05:18 -0500
        Re: Cannot access new Seagate external HD Daniel James <daniel@me.invalid> - 2015-09-12 20:46 +0100
          Re: Cannot access new Seagate external HD VanguardLH <V@nguard.LH> - 2015-09-14 04:14 -0500
            Re: Cannot access new Seagate external HD Daniel James <daniel@me.invalid> - 2015-09-14 13:03 +0100
            Re: Cannot access new Seagate external HD Mark Perkins <mark@none.invalid> - 2015-09-14 21:10 -0500
  Re: Cannot access new Seagate external HD Daniel James <daniel@me.invalid> - 2015-09-11 15:17 +0100
    Re: Cannot access new Seagate external HD Terry Pinnell <me@somewhere.invalid> - 2015-09-12 07:05 +0100

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