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-=RaV=-
Tux's lil' helper
Joined: 03 Mar 2004
Posts: 83
Location: Poland
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 Posted: Sat Sep 25, 2004 11:11 am Post subject: DMA for disks... |
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Does anyone know, how to enable DMA for all disks which I have and is it posible to enable DMA fof SATA disk??? I try to do it with hdparm, but it wrote error like this:
HDIO_SET_DMA failed: Operation not permitted
What should I do? |
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Deranger
Veteran
Joined: 26 Aug 2004
Posts: 1215
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| Posted: Sat Sep 25, 2004 11:41 am Post subject: |
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For optimal hard disk performance, try this:
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hdparm -d1c1u1m16 <device(s)>
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And, for optimal CD-ROM/CD-RW/DVD-ROM/DVD-RW/whatever drives:
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hdparm -d1c1u1 <device(s)>
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webkiller71
n00b
Joined: 29 Nov 2003
Posts: 20
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| Posted: Sat Sep 25, 2004 1:57 pm Post subject: |
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| sometimes you need specific chipset support in your kernel |
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-=RaV=-
Tux's lil' helper
Joined: 03 Mar 2004
Posts: 83
Location: Poland
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| Posted: Sat Sep 25, 2004 6:12 pm Post subject: |
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| After compiling the kernel with support for my IDE chipset (NVIDIA nForce2) it start to work. :) hdparm only enables DMA for ATA disks and cd-roms, but maybe there is a way to enable some speed-up settings for SATA disks? |
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Deranger
Veteran
Joined: 26 Aug 2004
Posts: 1215
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| Posted: Sat Sep 25, 2004 6:35 pm Post subject: |
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| -=RaV=- wrote: | | After compiling the kernel with support for my IDE chipset (NVIDIA nForce2) it start to work. :) hdparm only enables DMA for ATA disks and cd-roms, but maybe there is a way to enable some speed-up settings for SATA disks? |
Mostly SATA chipset sets DMA automatically (or it should set) |
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Kernel & Hardware
