10.04.4 LTS:

Formatting sdc3 (WDC WD20EARX-00P) to a full-disk ext4 partition via
gparted:

mkfs.ext4 -j -O extent -L '' /dev/sdc1

dev/sdc1 alignment is offset by 512 bytes.
This may result in very poor performance, (re)-partitioning suggested.
Filesystem label=
OS type: Linux
Block size=4096 (log=2)
Fragment size=4096 (log=2)
Stride=1 blocks, Stripe width=0 blocks
122101760 inodes, 488378000 blocks
24418900 blocks (5.00%) reserved for the super user
First data block=0
Maximum filesystem blocks=4294967296
14905 block groups
32768 blocks per group, 32768 fragments per group
8192 inodes per group
Superblock backups stored on blocks: 
    32768, 98304, 163840, 229376, 294912, 819200, 884736, 1605632, 2654208, 
  4096000, 7962624, 11239424, 20480000, 23887872, 71663616, 78675968, 
  102400000, 214990848

Writing inode tables: done                            
Creating journal (32768 blocks): done
Writing superblocks and filesystem accounting information: done

This filesystem will be automatically checked every 33 mounts or
180 days, whichever comes first.  Use tune2fs -c or -i to override.

Oookay, soo ... it is not obvious to me how to fix this.  I'll try
resizing the partition with the first 1M empty, as suggested in that IBM
article.  I trying unselecting alignment to sector but I got errors all
over the place.

** Attachment added: "GParted reports misalignment."
   
https://bugs.launchpad.net/ubuntu/+source/ubiquity/+bug/879387/+attachment/2854193/+files/gparted_details.htm

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https://bugs.launchpad.net/bugs/879387

Title:
  Partitions misaligned on advanced format drive WD20EARX

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