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Hard disk drive acceleration through DMA mode

Submitted by Erik Wegner on Fri, 04/02/2010 - 09:25

hdparm -X66 -d1 -u1 -m16 -c3 -A1 /dev/hda

Description of selected hdparm parameters
-X66IDE transfer mode (Ultra DMA 66)
-d1DMA mode
-u1unmask IRQ
-m16sector count for multiple sector I/O
-c332 bit I/O support
-A1enable read-ahead

To find out supported modes on a device, use the command:

hdparm -i /dev/hda

To see currently selected values, issue this command:

hdparm -v /dev/hda