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asterix404
Apprentice
Joined: 05 Nov 2004
Posts: 213
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 Posted: Tue Dec 14, 2004 5:06 pm Post subject: Very Simle DMA HD question |
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Hello, I am booting up my computer and I see that it tells me that DMA is not enabled. First off what is a DMA on a HD. I am useing a 40GB western digital with the 8MB... umm... Bus I think. Oh what we forget after a year of not staring at this stuff. Well my question is this, I want to turn it on I am assuming since well... it should speed up my computer. I did this after looking online
| Quote: | | hdparm -Q /dev/hda |
Since there is only one HD in my computer. This was the responce I get:
| Quote: | /dev/hda:
HDIO_GET_QDMA failed: Invalid argument |
I then tried this
| Quote: | | hdparm -Q1 /dev/hda |
and got:
| Quote: | /dev/hda:
setting DMA queue_depth to 1 (on)
HDIO_SET_QDMA failed: Invalid argument
HDIO_GET_QDMA failed: Invalid argument
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Does this mean I can not turn it on for my HD cuz I read on the manpage that there was not alot of HDs that can have DMA enabled? My MB that I am useing is an ASUS KB333, does this even matter?[/quote] |
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s4kk3
Apprentice
Joined: 15 Oct 2004
Posts: 232
Location: Finland
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| Posted: Tue Dec 14, 2004 5:19 pm Post subject: |
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DMA is direct memory acces. I'm not good to explain in english but maybe this helps. This should enable dma:
| Code: | | hdparm -d1 /dev/hda |
If it stills gives error you have something wrong in kernel. This thread helped me alot
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My own filemanager project |
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Kernel & Hardware
