From owner-freebsd-alpha@FreeBSD.ORG  Wed Apr 16 02:29:50 2003
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From: Jarkko Santala <jake@iki.fi>
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To: Jameel Akari <jakari@bithose.com>
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cc: freebsd-alpha@freebsd.org
Subject: Re: problem with UDMA mode on XP1000
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On Tue, 15 Apr 2003, Jameel Akari wrote:

> 	I had the same sort of problem in an Alpha PC164, but in the end
> the onboard IDE was so terrible and Tru64 refused to run a hard disk on
> it, so I bought an ISP1040 and went SCSI, and it's been solid.

Well, I don't think it's that terrible:

dd if=/dev/zero of=foo bs=1m count=100:
ad0: 104857600 bytes transferred in 6.863760 secs (15276991 bytes/sec)
da0: 104857600 bytes transferred in 8.200968 secs (12786003 bytes/sec)

atapci0: <CMD 646 ATA controller> port 0x10180-0x1018f irq 5 at device 11.0 on pci0
ad0: 117246MB <Maxtor 4G120J6> [238216/16/63] at ata0-master WDMA2

sym0: <875> port 0x10000-0x100ff mem 0x82064000-0x82064fff,0x82065000-0x820650ff irq 1 at device 7.0 on pci0
da0: <QUANTUM VIKING II 9.1WLS 5520> Fixed Direct Access SCSI-2 device
da0: 40.000MB/s transfers (20.000MHz, offset 16, 16bit), Tagged Queueing Enabled

If I correctly recall, the IDE cable is whatever-40-pin and the ad0 is in
an el-cheapo removable tray with also 40-pin cabling.

	-jake

-- 
Jarkko Santala <jake@iki.fi>            http://www.iki.fi/~jake/
System Administrator                    2001:670:83:f08::/64