Date: Thu, 3 Jun 1999 14:54:32 -0700 (PDT) From: Matthew Jacob <mjacob@feral.com> To: Wilko Bulte <wilko@yedi.iaf.nl> Cc: freebsd-scsi@FreeBSD.ORG Subject: Re: Fibrechannel Message-ID: <Pine.BSF.4.05.9906031451280.77206-100000@semuta.feral.com> In-Reply-To: <199906031930.VAA02758@yedi.iaf.nl>
next in thread | previous in thread | raw e-mail | index | archive | help
> > Ah. Well, let's try and architect one so that IP && SCSI are just one of a (as Julian pointed out to me: "design" would have been a better verb) > > set of ULPs on top of this. The Qlogic architecture is a bit more > > automatic transmission-like.... > > The approach you mention is what the FC standards advocate, I think it is a > good thing to layer it. > > Some other things that need thought, esp. on fabrics: how to 'wire down' > a FC device. > > I think something like: > > disk da0 at fcloop 0 wwn=<64bitnumber> > disk da1 at fabric 1 wwn=<64bitnumber> > > Maybe one could even omit the fcloop 0 stuff, as the wwn should be > sufficient, being worldwide unique etc. > > These are currently some first random thoughts.. Yes- this indeed is a problem- if you believe wiring down is important. Distinguising between loop and fabric is not likely to be a good thing- but association with a WWN is a good thing- although I'd really like to see this done in DEVFS, where we could also assign unique numbers to non-WWN based devices (parallel SCSI disks with VPD info that gives serial number...). > > > > Well, fabrics are a bit on the expensive side. I could probably test it > > > at work but that is quite awkward. I don't have any Qlogic FC cards so > > > I can't really help you testing the fabric functionality. > > > > Okay. > > What is the part# for the Qlogic FC adapter anyway? One never knows... The Qlogic 2100. The 2200 is out, but I haven't gotten one or a firmware spec for it yet. > 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?Pine.BSF.4.05.9906031451280.77206-100000>