[5864] in linux-scsi channel archive
Re: FC-AL support
daemon@ATHENA.MIT.EDU (Steffen Grunewald)
Thu Feb 11 04:59:44 1999
From: Steffen Grunewald <steffen@gfz-potsdam.de>
To: jj@sunsite.ms.mff.cuni.cz (Jakub Jelinek)
Date: Thu, 11 Feb 1999 09:28:52 +0100 (MET)
Cc: steffen@gfz-potsdam.de, davem@redhat.com,
kay@hni.uni-paderborn.de, linux-raid@vger.rutgers.edu,
linux-scsi@vger.rutgers.edu
In-Reply-To: <199902102136.WAA13194@sunsite.mff.cuni.cz> from "Jakub Jelinek" at Feb 10, 99 10:36:41 pm
Jakub Jelinek:
>
>
> > > The Sparc port has full support for point to point and full fc-al
> > > fibre channel. This is utilizing Sun's SOC and SOCAL adapter cards.
> > >
> >
> > What about Jaycor (JNI) cards ? They seem to simulate a SCSI
> > interface, but with up to 255 disks connected :-)
>
> 255? Strange. Does it have dual Fibre Channels? Even than that number is
> strange. AFAIK, AL topology limit is 126 devices arbitrating on the loop,
> and one has to be the HBA...
Well, you're of course right. Brain out of coffee syndrome.
But 126 is a _lot_, too.
BTW: someone knows how so-called host-independent RAID controllers
work ? (especially the ones Raidtec offers) Will it be possible to
bypass the controller and access a disk itself ?
Steffen
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