Messages in this thread | | | Date | Tue, 16 Jul 2002 07:28:44 -0700 (PDT) | From | Jauder Ho <> | Subject | Re: IDE/ATAPI in 2.5 |
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And path_to_inst does not always do the RightThing(tm). [1] [2] Two systems identically configured has the potential of having path_to_inst look different. Especially if you have previously installed a device or moved stuff around. And if the expectation is that a group of devices will come up in a certain sequence (think shared tape devices for instance) and it changes, it quickly becomes a nightmare. Not a fun proposition by any means.
--Jauder
[1] eg http://www.myri.com/scs/documentation/mug/installation/solaris.html [2] http://www.magma.com/support/sun.htm
On Tue, 16 Jul 2002, Joerg Schilling wrote:
> >From vojtech@ucw.cz Tue Jul 16 13:59:27 2002 > > >> It would help, if somebody would correct the current SCSI addressng scheme used > >> in Linux. Linux currently uses something called BUS/channel/target/lun. > >> This does not reflect reality. > >> > >> What Linux calls a SCSI bus is definitely not a SCSI bus but a SCSI HBA card. > >> What Linux calls a channel really is one of possibly more SCSI busses going > >> off one of the SCSI HBA cards. It makes sense to just count SCSI busses. > > >Well, no. It doesn't. Because the numbers will change if you add a card > >(even at runtime - hotplugging USB SCSI is something real happening > >today. And that'd be a very bad thing. > > It hey change, then this is a Linux kernel problem. On Solaris they don't > change because Solaris manages /etc/path_to_inst > > Jörg > > EMail:joerg@schily.isdn.cs.tu-berlin.de (home) Jörg Schilling D-13353 Berlin > js@cs.tu-berlin.de (uni) If you don't have iso-8859-1 > schilling@fokus.gmd.de (work) chars I am J"org Schilling > URL: http://www.fokus.gmd.de/usr/schilling ftp://ftp.fokus.gmd.de/pub/unix > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > >
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