Subject: Re: IBM drives vs Adaptec controllers/driver [was Re: 10G IBM ide hard disk]
To: NetBSD-current Discussion List <firstname.lastname@example.org>
From: Greg A. Woods <email@example.com>
Date: 01/23/1999 20:18:58
[ On Sat, January 23, 1999 at 17:25:56 (-0700), Justin T. Gibbs wrote: ]
> Subject: Re: IBM drives vs Adaptec controllers/driver [was Re: 10G IBM ide hard disk]
> I would not suggest using SCBPAGING in the NetBSD version of the driver.
> It only became truly robust when I revamped the driver for CAM (not SCAM)
> and both tagged queuing and scb paging are always enabled in the current
> FreeBSD driver.
Ongoing tests have shown that the "timed out in dataout phase" is easily
repeatable, so indeed I will turn off SCBPAGING, and assuming the
timeout goes away I'll just keep tagged queuing enabled.
> CAM = Common Access Method
> SCAM = SCSI Configured Auto-Magically.
Argh! Yes, I knew that -- my brain was scrambled by staring at the
Adaptec BIOS SCSI-Select screen too long.... Thanks for clarifying!
Greg A. Woods
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