From mboxrd@z Thu Jan  1 00:00:00 1970
From: Tore Anderson <tore@linpro.no>
Subject: Re: Different Path priorities for iSCSI and FC paths to
	a	combination lun.
Date: Tue, 29 Apr 2008 22:06:00 +0200
Message-ID: <48177FA8.7030206@linpro.no>
References: <200804241603.m3OG3B5M030182@hera.kernel.org>	<20080429145629.GK18935@agk.fab.redhat.com>
	<7DAA28B9259FAD458DEE03DC3DA236DA043F66DF@caex02.trans.corp>
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Hi,

* Srinivas Ramani

> I would be grateful to learn from this forum on how one would be able
> to have different path priorities for a FC / iSCSI  paths to a
> multiprotocol FC/iSCSI combination lun using device mapper . The
> intention is that a  FC path should have a higher priority than an
> iSCSI path to the same lun. Is it possible to do it with a
> configuration change or would one need to  add this feature to the 
> mpath_prio_alua  code.

Make a small wrapper script that invokes mpath_prio_alua and also checks
if the path is to a iSCSI volume or not (you can probably determine this
by looking somewhere beneath /sys/block/$dev/).  If it is, add 100 to
whatever mpath_prio_alua returned, and print the sum.

Regards
-- 
Tore Anderson