Re: multipath-tools multipath.conf.synthetic

["Bryn M. Reeves" <bmr@redhat.com>]

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On 03/07/2011 06:42 PM, bmarzins@sourceware.org wrote:
> CVSROOT:	/cvs/dm
> Module name:	multipath-tools
> Branch: 	RHEL5_FC6
> Changes by:	bmarzins@sourceware.org	2011-03-07 18:42:03
> 
> Modified files:
> 	.              : multipath.conf.synthetic 
> 
> Log message:
> 	Forgot to remove /bin/true reference from multipath.conf.synthetic. Removing.
> 	Not applicable upstream.
> 
> Patches:
> http://sourceware.org/cgi-bin/cvsweb.cgi/multipath-tools/multipath.conf.synthetic.diff?cvsroot=dm&only_with_tag=RHEL5_FC6&r1=1.11.2.6&r2=1.11.2.7
> 
> --- multipath-tools/multipath.conf.synthetic	2008/09/08 22:01:19	1.11.2.6
> +++ multipath-tools/multipath.conf.synthetic	2011/03/07 18:42:03	1.11.2.7
> @@ -8,7 +8,7 @@
>  #	selector		"round-robin 0"
>  #	path_grouping_policy	multibus
>  #	getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
> -#	prio_callout		/bin/true
> +#	prio_callout		none
>  #	path_checker		readsector0
>  #	rr_min_io		100
>  #	max_fds			8192

Thanks Ben, I think we should also remove the reference from
multipath/multipath.conf.redhat as this is the default /etc/multipath.conf on
Red Hat systems and users blindly un-commenting the example may create problems
(e.g. boot from SAN fails) - patch attached.

#defaults {
#	udev_dir		/dev
#	polling_interval 	10
#	selector		"round-robin 0"
#	path_grouping_policy	multibus
#	getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
#	prio_callout		/bin/true
#	path_checker		readsector0
#	rr_min_io		100
#	max_fds			8192
#	rr_weight		priorities
#	failback		immediate
#	no_path_retry		fail
#	user_friendly_names	yes
#}

Regards,
Bryn.

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diff -up multipath-tools/multipath/multipath.conf.redhat.orig multipath-tools/multipath/multipath.conf.redhat
--- multipath-tools/multipath/multipath.conf.redhat.orig	2011-03-08 09:55:59.000000000 +0000
+++ multipath-tools/multipath/multipath.conf.redhat	2011-03-08 09:56:06.000000000 +0000
@@ -25,7 +25,7 @@ defaults {
 #	selector		"round-robin 0"
 #	path_grouping_policy	multibus
 #	getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
-#	prio_callout		/bin/true
+#	prio_callout		none
 #	path_checker		readsector0
 #	rr_min_io		100
 #	rr_weight		priorities

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