Re: State of SATA
From: André Janz (ALDUBOFMWIGO_at_spammotel.com)
Date: 10/07/03
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Date: Tue, 07 Oct 2003 11:50:28 +0200
Angela Kahealani wrote:
> How did you succeed in activating SATA DMA? What distribution?
The machines are running SuSE 8.2. With the shipped kernel DMA didn't
work at all, even for the IDE CD-ROM. The update kernel enabled DMA but
I couldn't use native SATA so the SATA disks were hdc and hdd and they
seemed to share the bandwidth, ie. Soft-RAID-0 wasn't much faster than
one disk.
The machines are now running a stock 2.4.22 kernel which supports the
875P chipset better.
I didn't have to enable DMA explicitely but if necessary I would use
hdparm -d1 /dev/hde
André
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