Hi, I have both motherboard and hard drive that support UDMA/66. Both had been configured to support UDMA/66. Then the question: how can I know that Linux/SuSE is using the UDMA/66 or UDMA/33 transfer rate? If I see in ../dma it's said 4:cascade. What does it mean? I'm using SuSE 6.3 Thank you in advanced. Daniel ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
Daniel HP wrote:
Hi,
I have both motherboard and hard drive that support UDMA/66. Both had been configured to support UDMA/66. Then the question: how can I know that Linux/SuSE is using the UDMA/66 or UDMA/33 transfer rate? If I see in ../dma it's said 4:cascade. What does it mean? I'm using SuSE 6.3
Thank you in advanced.
type dmesg and see if your HD hdx is having UDMA status in the message -- Togan Muftuoglu toganm@turk.net -- To unsubscribe send e-mail to suse-linux-e-unsubscribe@suse.com For additional commands send e-mail to suse-linux-e-help@suse.com Also check the FAQ at http://www.suse.com/Support/Doku/FAQ/
* Daniel HP (danielhp@hotmail.com) [20000606 16:13]:
configured to support UDMA/66. Then the question: how can I know that Linux/SuSE is using the UDMA/66 or UDMA/33 transfer rate?
As already said, you can check either the output of dmesg or view
/var/log/messages for the lines where IDE is being set up. Another
possibility is using hdparm, see 'man hdparm' for more info.
Note that the standard SuSE kernels don't activate DMA transfer by default,
as there's too much crappy hardware out there. You can activate UDMA
transfer using hdparam like this:
hdparm -c1 -d1 -X66 /dev/hda
-c1 turns on 32Bit transfers from controller to disk
-d1 turns on DMA
-X66 selects UDMA mode 2, i.e. ATA66 (Numbers are mode plus 64)
If the settings work, add -k1 to flags as otherwise your settings would be
lost after a controller reset. For convenience put that command into
/sbin/init.d/boot.local to have the drive(s) set up automatically at boot
time.
Philipp
--
Philipp Thomas
participants (3)
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danielhp@hotmail.com
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pthomas@suse.de
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toganm@turk.net