From mboxrd@z Thu Jan  1 00:00:00 1970
From: Luben Tuikov <ltuikov@yahoo.com>
Subject: Re: [PATCH] zfcp: Report FCP LUN to SCSI midlayer
Date: Mon, 25 Jun 2007 17:49:58 -0700 (PDT)
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To: James Bottomley <James.Bottomley@SteelEye.com>, Stefan Richter <stefanr@s5r6.in-berlin.de>
Cc: Hannes Reinecke <hare@suse.de>, Swen Schillig <swen@vnet.ibm.com>, Mike Anderson <andmike@us.ibm.com>, Christof Schmitt <christof.schmitt@de.ibm.com>, linux-scsi@vger.kernel.org

--- James Bottomley <James.Bottomley@SteelEye.com> wrote:
> You're sort of confusing what we display as the LUN and what we
> represent it as internally (admittedly they're the same at the moment).
> The object would be to separate these and the debate is really about
> what to display.

Display this:
 "%016llx", ((unsigned long long) be64_to_cpu(*(__be64 *)(LUN))),
where LUN is u8[8].  Notice the ugly, C-centric "0x" prefix
is missing.  Not sure who would confuse this number for decimal
or octal base representation of a LUN...

This also makes it great to be a directory name, since it is the
same width and format, and it looks great in "tree" listing format,
as shown in here:
http://marc.info/?l=linux-scsi&m=112629509826900&w=2

    Luben