LPI
201-450 · Question #21
How can DMA be enabled for the device /dev/hda?
The correct answer is D. hdparm -d 1 /dev/hda. See the full explanation below for the reasoning.
Filesystem and Devices
Question
How can DMA be enabled for the device /dev/hda?
Options
- Aecho "1" >/proc/ide/hda/dma
- Bsysctl -w dev.ide.dma=1
- Cdma add /dev/hda
- Dhdparm -d 1 /dev/hda
- Einsmod dma dev=/dev/hda
How the community answered
(21 responses)- A10% (2)
- C10% (2)
- D76% (16)
- E5% (1)
Topics
#DMA#hdparm#IDE devices#disk performance
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