From owner-freebsd-hardware  Wed Jul 14  0:44:30 1999
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From: Matthew Jacob <mjacob@feral.com>
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To: Tim Tsai <tim@futuresouth.com>
Cc: hardware@FreeBSD.ORG
Subject: Re: Fibre Channel Controller [ LONG RESPONSE ]
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> > The switch configuration *can* work (it's early days for the code I put
> > in), but all that really does is join together multiple loops such that if
> > I query the Fabric name server and get list of disks back, I can 'map'
> > them to loop ID's such that the Qlogic knows they're not on the local
> > loop. This picture looks like, e.g.:
> 
>   Actually I mentioned the switch because as far as I know you can
> configure it in such a way that the host will never see disks that it's
> not intended for.  That should isolate the hosts from each other even if
> FC id's go in and out?  It is analogous to VLAN on ethernet.

I believe you're referring to a Brocade feature- zoning. It's possible
that other switches have that feature too. 

> 
>   We will probably look into that again soon.  We need [HW] RAID on a
> handful of machines and I would rather spend the money on a couple of good
> storage arrays instead of buying one for each machine.  NFS is out for
> our environment.
> 
>   Would you happen to have a host-independent (stand-alone) FC RAID
> controller that you can recommend?

Not that I know well enough to swear by.

-matt




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