Date: Sun, 13 Sep 1998 11:14:00 +0200 (CEST) From: Wilko Bulte <wilko@yedi.iaf.nl> To: wilko@yedi.iaf.nl (Wilko Bulte) Cc: ken@plutotech.com, cattelan@thebarn.com, freebsd-scsi@FreeBSD.ORG Subject: Re: Weird Toshiba CD causes CAM to crash. Message-ID: <199809130914.LAA25506@yedi.iaf.nl> In-Reply-To: <199809122240.AAA20591@yedi.iaf.nl> from Wilko Bulte at "Sep 13, 98 00:40:06 am"
next in thread | previous in thread | raw e-mail | index | archive | help
As Wilko Bulte wrote...
> As Kenneth D. Merry wrote...
> > Wilko Bulte wrote...
> > > As Russell Cattelan wrote...
> > > > I has to put his hack back into scsi_da.c
> > > >
> > > > + if (!strncmp(*(&(&cgd->inq_data)->product),"CD-ROM XM-5401TA",
> > > > + strlen("CD-ROM XM-5401TA"))){
> > > > + printf("daasync skipping device that looks like CD\n");
> > > > + break;
> > > > + }
> > > > +
> > > > if (cgd->pd_type != T_DIRECT)
> > > > break;
> > > >
> > > > Other wise it would crash someplace in "dadone" at boot time.
> > > >
> > > > I know this drive is a little weird.
> > >
> > > Said drive worked fine for me in the non-CAM world. I would not generally
> > > qualify Toshiba CDs as weird, they tend to be pretty good. Currently I have
> > > a 12x that replaced the 5401:
> > >
> > > TOSHIBA CD-ROM XM-5701TA 0557
> >
> > Most Toshiba drives work just fine. His problem is that his drive probes
> > as a direct access device for some reason.
>
> I can explain that part: it was probably inside an SGI or something like
> that. Older SGI machines (maybe new ones also?) need CD drives to behave
> like a DA (disk) device in order for the CDs to be bootable.
>
> Digital has the same thing in their RRDxx cdrom drives. For the newer
Hmm. Not completely right: they had to 512 byte blocks by default, like disks...
> DEC drives (the Toshiba ones) you can switch from DEC RRD4x to Toshiba
> mode (512 and 2048 byte blocks respectively) by (un)setting the parity
> jumper. Parity is always enabled.
>
> Sun also has/had 512 byte block drives.
>
> I don't know if the DEC and Sun drives probe as DA devices, but I
> think they do not. At least I never had troubles getting DEC RRD drives
> probed as harddisks. Never tried them with CAM though.
Wilko
_ ______________________________________________________________________
| / o / / _ Bulte email: wilko@yedi.iaf.nl
|/|/ / / /( (_) Arnhem, The Netherlands WWW : http://www.tcja.nl
______________________________________________ Powered by FreeBSD __________
To Unsubscribe: send mail to majordomo@FreeBSD.org
with "unsubscribe freebsd-scsi" in the body of the message
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?199809130914.LAA25506>