Weez.com » hard drive http://www.weez.com Solving everyday practical LAMP problems... one at a time Sat, 11 Feb 2012 03:24:53 +0000 en hourly 1 http://wordpress.org/?v=3.0.1 Linux hard drive performance optimization http://www.weez.com/2008/09/linux-hard-drive-performance-optimization/ http://www.weez.com/2008/09/linux-hard-drive-performance-optimization/#comments Fri, 12 Sep 2008 05:47:27 +0000 Abidoon http://www.weez.com/?p=17 Everywhere on the web I read about using the hdparm utility to increase hard drive speed. However it seems that this utility does not support sata drives properly.

I have access to at least 5 different machines that run linux with different sata hard drives but the hdparm command fails more or less on each one of them.

Here is the command I have tried in various places.

hdparm -d1 -c3 -u1 /dev/hda

and I always get errors like

setting 32-bit IO_support flag to 3
HDIO_SET_32BIT failed: Invalid argument
setting unmaskirq to 1 (on)
HDIO_SET_UNMASKINTR failed: Inappropriate ioctl for device
setting using_dma to 1 (on)
HDIO_SET_DMA failed: Inappropriate ioctl for device
IO_support = 0 (default 16-bit)

What I do not understand is that SATA drives have been around for quite some time. So whats the holdup ? Why does this not work?

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