Re: Rules of the Road for Fibre Channel Interop
From: Charles (cdmccane_at_directlink.net)
Date: 02/22/04
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Date: Sun, 22 Feb 2004 12:36:52 -0600
Thanks for the response. Topology is FC-AL, very simple at this point - one
initiator (Sun) and one target (Clariion). As for latest drivers, I'm using
Solaris 8 with the latest jumbo patch. I haven't researched the possibility
of doing something with the firmware for the FC100/S. That HBA has been
working flawlessly with a 3rd party JBOD enclosure consisting of 8 IBM
DDYF-18350 10K rpm drives. Never had any issues with that configuration -
all the drives show up under format and provide decent performance as
configured under Veritas 3.2 with striping. I'm using a different boot disk
with a simple Solaris 8 install for testing - no Veritas on the test boot
disk.
When I remvoe the JBOD, connect the Clariion, and boot from the test
boot disk, I can see the DGC-RAID10-0511 target on the loop. With a
reconfigure the OS manages to create /dev/dsk/c1t0d0s0-7 device files.
Format shows the DGC device and I can go into partition and see the
partition table. It shows an 82G device. The problem comes when I do any
kind of write, which as you pointed out would first be a label command.
Thats when I get the "SCSI transport failed: reason 'timeout': retrying
command." response showing up in var/messages. I've never been any further
than that.
"Matty" <mattycruft@daemons.net> wrote in message
news:pan.2004.02.22.16.21.51.434591@daemons.net...
> On Sun, 22 Feb 2004 09:18:22 -0600, news.directlink.net wrote:
>
> > Being relatively new to fibre channel, I need to gain more awareness of
what
> > works and what to expect. Maybe some gurus here on usenet can help. I
> > discovered that my Sun X6730A (FC100/S) card will not correctly
communicate
> > with a Clariion FC5700 DPER. I don't understand why. Doesn't everyone
follow
> > the ANSI standard for Fibre Channel? Is the standard kinda "loose" or
what?
>
> Some cards were released before the standards were formalized, but
> should be able to work with some tweaking. What does your
> topology look like? Do you have the latest drivers?
>
> > I've seen a number of shops with large systems that had Fibre Channel
> > cards from 2 or 3 different vendors talking to arrays from different
> > vendors. I never really considered why. I think I'm beginning to get a
> > clue about this.
> > In my configuration I can see one device out on the Fibre Channel.
> > It is
> > identified as a DGC (Data General, creator of Clariion). This device has
> > 3 LUN's available (yes, I already did the sd.conf). But any further
> > communication beyond the format command to see available drives results
> > in "SCSI transport failed: reason 'timeout': retrying command."
> > It seems like connecting an FC100/S to a Clariion is like breaking
> > the
> > main law of Fibre Channel: Never expect interoperability between any two
> > given devices. Is that true or am I just making some kind of
> > configuration mistake with the drivers or the OS? Any help is
>
> Do you have a switch between the host and the Clarion? What happens
> when you run a read/analyze on the LUN through format? Did you
> label the LUN through format? We have used Emulex cards w/ the
> Clarion line and have had great luck.
>
> > appreciated.
> >
> > Charles McCane
> > Dallas, TX.
>
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