[mythtvnz] New Hard Drive not performing well

[Jean-Francois Pirus]

On Tue, 2010-11-16 at 23:50 -0800, Steve V wrote:
> The 2Tb drive is the new one. The 1 Tb and the 2Tb are both Western Digital 
> Caviar Green types. All of the storage drives are formatted as XFS.

Given the new one is a 2Tb WD it's probably one of the WDxxEARS drive
with 4k sectors (instead of 512b sectors)

That could be causing the slowdown.

See: https://ata.wiki.kernel.org/index.php/ATA_4_KiB_sector_issues

If that's the case, the only way to fix it is to reformat the 2Tb drive.
I use fdisk -H 224 -S 56 /dev/sdX to make sure it's aligned properly.
(apparently you can use fdisk -c -u /dev/sdX on newer fdisk versions)


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