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Author Topic: Problems with wide scsi HD on A4000T controller  (Read 1148 times)

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Offline CaiusTopic starter

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Problems with wide scsi HD on A4000T controller
« on: September 27, 2011, 12:01:00 PM »
I have a 73GB U320 scsi harddisk connected to the A4000T internal scsi controller with a 80->50pin adapter with high byte termination.

The controller has id 7 and is terminated. The hd is id 0. At the end of the bus I have a CDROM with id 3 and terminated with a jumper on the device itself.

The drive shows up in hdtoolbox. When I tried initializing it I received a requester with the following message: "Error 2 in drive description"

I have "NCR scsi.device" 43.45 from http://aminet.net/package/driver/media/SCSI4345p

So I figured I'd try hdinsttools instead, following the directions in the PFS3 docs. This seemed to work at first. I set Mask 0xfffffffc and MaxTransfer 0xfffe00 (I have also tried 0x1fe00)

Formatted the new partition with pfsformat. The full format was extremely slow (like ten times slower than when I've done the same on my IDE drive), so I did a quick instead. Everything seemed just peachy. But when I tried copying some files to the partition it was real slow.

So I figured I'd give hdtoolbox another go. When I initialized it this time, I did NOT get the error requester. Very odd. I partitioned, rebooted, formatted the partition, and got the same result. A very, very slow partition.

I fired up sysspeed just to get some numbers and here are the results:

CreateFile 1.39 MB/s
WriteFile 1.20 MB/s
ReadFile 6.94 MB/s
RawRead --- (skipped for some reason)

Clearly the problem is writing, as reading is nice and fast. Oh, and I added 400 buffers to the partition.

Any ideas here? Is the Mask and/or MaxTransfer wrong?

I have also posted this thread on AmiBay: http://www.amibay.com/showthread.php?p=216805
Theology is just a debate over who to frame for creating reality.
 

Offline CaiusTopic starter

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Re: Problems with wide scsi HD on A4000T controller
« Reply #1 on: September 27, 2011, 12:12:25 PM »
Well, how about that. I changed to the PFS3 direct scsi version and got loads better results:

CreateFile: 6.70
WriteFile: 6.78
ReadFile: 7.04

Nice!
Theology is just a debate over who to frame for creating reality.