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I have two hard drives, which are identical, same model though purchased at different times, but in all respects the same. Afaik the manufacturer hasn't changed capacity (Seagate expansion).

However, they're different sizes. One is NTFS, one is one is ext4. Is this a result of the file system or did they actually change the drive specs?

/dev/sdc1             1.8T
/dev/sdd1             1.9T

/dev/sdc1            1922858352
/dev/sdd1            1953512000

With regards to filesystem, is there anything which squeezes more space out?

EDIT

The NTFS is the larger one, these files come from df.

Edit 2 Maybe this should be moved somewhere else. df is giving a different size than fdisk does. Fdisk says they're the same, df says they're different.

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  • out of curosity, which is which?
    – Journeyman Geek
    Apr 6, 2011 at 3:09
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    Where are you getting these sizes from? fdisk? df? parted?
    – deltaray
    Apr 6, 2011 at 3:11
  • The "formats" (NTFS, ext4) are called file systems. Apr 6, 2011 at 13:46
  • df; ntfs is the 'larger'; yeah yeah. Filesystems.
    – EricR
    Apr 7, 2011 at 1:29

1 Answer 1

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The EXT filesystem reserves blocks for privileged processes if you want to remove this reserved space use sudo tune2fs -m 0 /dev/sdc1 you can view the reserved amount by running sudo tune2fs -l /dev/sdc1 | grep ‘Reserved block count’

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