Re: Rules of the Road for Fibre Channel Interop

From: Matty (mattycruft_at_daemons.net)
Date: 02/22/04

  • Next message: Michael Lehmann: "Re: Ultra10 CDROM Boot Problems" 
    Date: Sun, 22 Feb 2004 11:21:53 -0500

    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.

  • Next message: Michael Lehmann: "Re: Ultra10 CDROM Boot Problems"

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