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3TB drives are 800GB?
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pdr
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Joined: 20 Mar 2004
Posts: 604

PostPosted: Sat Aug 08, 2015 6:37 pm    Post subject: 3TB drives are 800GB? Reply with quote

fdisk, parted, and directly formatting with mkfs.ext4 all think my new 3TB Western Digital green 3TB drives are 800GB. I had no problem with 2TB drives - am I missing a kernel setting?
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NeddySeagoon
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Joined: 05 Jul 2003
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PostPosted: Sat Aug 08, 2015 7:07 pm    Post subject: Reply with quote

pdr,

On a 32 bit or 64 bit install?

Thats right for wrapping from 2TBi
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NeddySeagoon

Computer users fall into two groups:-
those that do backups
those that have never had a hard drive fail.
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BT
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PostPosted: Sun Aug 09, 2015 12:12 am    Post subject: Reply with quote

Are you using MSDOS or GPT partitioning? MSDOS partitions have a 2 TB size limit.
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chithanh
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Joined: 05 Aug 2006
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PostPosted: Sun Aug 09, 2015 7:34 pm    Post subject: Reply with quote

If directly formatting with ext4 shows it as 800GB then it is not a partitioning issue.

Looks like maybe your BIOS needs an update.
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pdr
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PostPosted: Thu Aug 13, 2015 10:04 pm    Post subject: Reply with quote

This is a 32-bit install (and through USB to an external enclosure); I'll try my server (64 bit) and see if that helps. But if it is 32/64, will I still be able to access on the 32-bit? One of these is going to be my backup drive...
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chithanh
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PostPosted: Fri Aug 14, 2015 8:02 am    Post subject: Reply with quote

32 bit Linux will handle >2TB drives fine too.

But unless you run a system with very little memory (less than 1 GB) or depend on 32-bit only proprietary software, running 64 bit is preferable anyway as long as your CPU supports it.
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Keruskerfuerst
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Joined: 01 Feb 2006
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PostPosted: Fri Aug 14, 2015 1:21 pm    Post subject: Reply with quote

Does any other OS (Linux, Solaris, Win, Linux Live CD like Systemrescue cd, or Gparted) show the full drive capacity?

Are these drives detected by the Bios correctly?
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