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View Full Version : is my HD using DMA mode?



ptesone
03-16-2004, 08:23 PM
1st, I have a HD install of Knoppix
I noticed on bootup it said something about PIO mode 33 use DMA=xx or something like that. . .
I just wondered id anyone knew how to check my hardrive's DMA modes. . .

Thanx

windos_no_thanks
03-16-2004, 08:54 PM
sudo hdparm /dev/hda


The default situation after a hd install won't allow you to sudo though so you probably should do:


su
hdparm /dev/hda

ptesone
03-16-2004, 09:00 PM
thanx for the quick reply
they both worked and DMA says it's on

c123
03-18-2004, 11:46 PM
I don;t see anything about the access mode :(


root@Knoppix:/home/christopher# hdparm /dev/sda

/dev/sda:
readonly = 0 (off)
geometry = 39083/64/32, sectors = 80043264, start = 0


So how can I know if DMA is on?

Stephen
03-19-2004, 12:02 AM
I don;t see anything about the access mode :(


root@Knoppix:/home/christopher# hdparm /dev/sda

/dev/sda:
readonly = 0 (off)
geometry = 39083/64/32, sectors = 80043264, start = 0


So how can I know if DMA is on?

SCSI drives do not need DMA enabled the controller it connects through takes care of the speed of the connection.

c123
03-20-2004, 02:27 PM
Thought this might be the case after posting; thanks for the confirmation.