Date: Thu, 24 Oct 1996 21:49:18 -0700 From: "Michael L. VanLoon -- HeadCandy.com" <michaelv@MindBender.serv.net> To: "Marc G. Fournier" <scrappy@ki.net> Cc: current@freebsd.org Subject: Re: Apparent SCSI bus hangs... Message-ID: <199610250449.VAA03860@MindBender.serv.net> In-Reply-To: Your message of Thu, 24 Oct 96 00:40:03 -0400. <Pine.NEB.3.95.961024003718.275A-100000@quagmire.ki.net>
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>> > (aha0:0:0): "SEAGATE ST32151N 0284" type 0 fixed SCSI 2
>> > sd0(aha0:0:0): Direct-Access 2049MB (4197405 512 byte sectors)
>> > Sitting on an Adaptec 1542CF controller.
>> (ncr0:0:0): "SEAGATE ST32155N 0532" type 0 fixed SCSI 2
>> sd0(ncr0:0:0): Direct-Access
>> sd0(ncr0:0:0): FAST SCSI-2 100ns (10 Mb/sec) offset 8.
>> 2049MB (4197405 512 byte sectors)
>> Only a note that this one still works fine.
> Has anyone noticed any problems with having AHC_TAG_ENABLE set
>in the kernel? That's the only thing I can think of that's changed
>recently, to my configuration. I'm certain that the problem started
>before I did that, but not 100% certain :(
This doesn't apply directly, because it's on NetBSD and not FreeBSD.
But, the NetBSD SCSI driver is the same one written by Justin Gibbs
(though the NetBSD one probably isn't as current as the FreeBSD
version, and the SCSI subsystems differ slightly).
I have been running with AHC_TAGENABLE for a few months now, with a
ccd striped across two drives. I haven't noticed a single problem.
Note that I'm also using a 2940UW. Maybe the 1542 doesn't do tags (or
doesn't do them correctly). That wouldn't really surprise me, since
it's not an "ahc", but rather an "aha".
-----------------------------------------------------------------------------
Michael L. VanLoon michaelv@MindBender.serv.net
--< Free your mind and your machine -- NetBSD free un*x >--
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