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Old 06-14-2007, 03:27 AM   #1
chickenjoy
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How to find out if DMA acceleration is on? or its status


for Hard Drive and CD-writer?

TIA
 
Old 06-14-2007, 03:37 AM   #2
bathory
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Use something like:
Code:
hdparm -iv /dev/hdX
X being your drive letter.

Regards
 
Old 06-14-2007, 04:04 AM   #3
chickenjoy
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thanks, my cd-rom has "using_dma = 0 (off)" whilst my HD doesn't show it, does that mean my HD doesn't support DMA acceleration?
 
Old 06-14-2007, 05:51 AM   #4
bathory
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Make sure your drive(s) support dma and it's enabled in the bios. Also take a look at your bootloader config file (grub.conf or lilo.conf) to see if you have disable it from there.
You can try to set dma on using
Code:
hdparm -d1 -m1 /dev/hdX
(for the hard drive better do it in single user mode just to be sure).
 
  


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