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Re: [dm-devel] multipath-tools ./multipath.conf.defaults libm ...



Hello,

Sorry to bother you, but I wanted to thank you for your update on the
multipath.conf.default.

I'm trying to get my MD3000 to work properly but had some troubles with
it. I think your example will help me out!

But I do have one question about your update. It says to
use /sbin/mpath_prio_tcp but I don't have this on my system. I do have
the latest version 4.5.8 but can't find it.

Any tip would be greatly appreciated!!

Sander


On Tue, 2007-08-14 at 18:08 +0000, bmarzins sourceware org wrote:
> CVSROOT:	/cvs/dm
> Module name:	multipath-tools
> Branch: 	RHEL5_FC6
> Changes by:	bmarzins sourceware org	2007-08-14 18:08:55
> 
> Modified files:
> 	.              : multipath.conf.defaults 
> 	libmultipath   : devmapper.c hwtable.c 
> 
> Log message:
> 	Fixed typos in the Multipath.conf.defaults file. Added some error messages, and
> 	added a default configuration for the DELL MD3000.
> 
> Patches:
> http://sourceware.org/cgi-bin/cvsweb.cgi/multipath-tools/multipath.conf.defaults.diff?cvsroot=dm&only_with_tag=RHEL5_FC6&r1=1.5.4.4&r2=1.5.4.5
> http://sourceware.org/cgi-bin/cvsweb.cgi/multipath-tools/libmultipath/devmapper.c.diff?cvsroot=dm&only_with_tag=RHEL5_FC6&r1=1.22.2.1&r2=1.22.2.2
> http://sourceware.org/cgi-bin/cvsweb.cgi/multipath-tools/libmultipath/hwtable.c.diff?cvsroot=dm&only_with_tag=RHEL5_FC6&r1=1.20.2.4&r2=1.20.2.5
> 
> --- multipath-tools/multipath.conf.defaults	2007/06/19 18:12:15	1.5.4.4
> +++ multipath-tools/multipath.conf.defaults	2007/08/14 18:08:54	1.5.4.5
> @@ -6,7 +6,7 @@
>  #	polling_interval 	5
>  #	selector		"round-robin 0"
>  #	path_grouping_policy	failover
> -#	getuid_callout		"/sbin/scsi_id -g -u -s"
> +#	getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #	prio_callout		none
>  #	path_checker		readsector0
>  #	rr_min_io		1000
> @@ -25,7 +25,7 @@
>  #       device {
>  #		vendor			"APPLE.*"
>  #		product			"Xserve RAID"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    multibus
> @@ -36,7 +36,7 @@
>  #       device {
>  #		vendor			"3PARdata"
>  #		product			"VV"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    multibus
> @@ -47,7 +47,7 @@
>  #       device {
>  #               vendor                  "(COMPAQ|HP)"
>  #               product                 "MSA1.*"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"1 hp_sw"
>  #               path_grouping_policy    multibus
> @@ -58,7 +58,7 @@
>  #       device {
>  #               vendor                  "(COMPAQ|HP)"
>  #               product                 "HSV(1|2).*"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #               prio_callout            "/sbin/mpath_prio_alua %n"	
>  #		features		"0"
>  #		hardware_handler	"0"
> @@ -72,7 +72,7 @@
>  #       device {
>  #		vendor			"HP"
>  #		product			"A6189A"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    multibus
> @@ -83,7 +83,7 @@
>  #       device {
>  #		vendor			"(HITACHI|HP)"
>  #		product			"OPEN-.*"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    multibus
> @@ -95,7 +95,7 @@
>  #       device {
>  #               vendor                  "DDN"
>  #               product                 "SAN DataDirector"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    multibus
> @@ -106,7 +106,7 @@
>  #       device {
>  #               vendor                  "DEC"
>  #               product                 "HSG80"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"1 hp_sw"
>  #               path_grouping_policy    multibus
> @@ -118,7 +118,7 @@
>  #               vendor                  "DGC"
>  #		product			".*"
>  #		product_blacklist	"LUN_Z"
> -#		getuid_callout          "/sbin/scsi_id -g -u -s"
> +#		getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
>  #		prio_callout		"/sbin/mpath_prio_emc /dev/%n"
>  #		features		"1 queue_if_no_path"
>  #		hardware_handler	"1 emc"
> @@ -129,6 +129,17 @@
>  #		rr_min_io		1000
>  #		path_checker		emc_clariion
>  #	}
> +#	device {
> +#		vendor                  "DELL"
> +#               product                 "MD3000"
> +#		getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
> +#               prio_callout            "/sbin/mpath_prio_tpc /dev/%n"
> +#		features		"0"
> +#               hardware_handler        "1 rdac"
> +#		path_grouping_policy	group_by_prio
> +#               failback                manual
> +#               path_checker            rdac
> +#       }
>  #       device {
>  #               vendor                  "EMC"
>  #               product                 "SYMMETRIX"
> @@ -143,7 +154,7 @@
>  #       device {
>  #               vendor                  "FSC"
>  #               product                 "CentricStor"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    group_by_serial
> @@ -154,7 +165,7 @@
>  #       device {
>  #               vendor                  "HITACHI"
>  #               product                 "DF.*"
> -#		getuid_callout          "/sbin/scsi_id -g -u -s"
> +#		getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
>  #		prio_callout		"/sbin/mpath_prio_hds_modular %d"
>  #		features		"0"
>  #		hardware_handler	"0"
> @@ -167,7 +178,7 @@
>  #       device {
>  #               vendor                  "IBM"
>  #               product                 "ProFibre 4000R"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    multibus
> @@ -178,7 +189,7 @@
>  #       device {
>  #               vendor                  "IBM"
>  #               product                 "1742"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #               prio_callout            "/sbin/mpath_prio_tpc /dev/%n"	
>  #		features		"0"
>  #		hardware_handler	"0"
> @@ -191,7 +202,7 @@
>  #       device {
>  #               vendor                  "IBM"
>  #               product                 "3526"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #               prio_callout            "/sbin/mpath_prio_tpc /dev/%n"	
>  #		features		"0"
>  #		hardware_handler	"0"
> @@ -204,7 +215,7 @@
>  #	device {
>  #		vendor			"IBM"
>  #		product			"3542"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    group_by_serial
> @@ -215,7 +226,7 @@
>  #	device {
>  #		vendor			"IBM"
>  #		product			"2105(800|F20)"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"1 queue_if_no_path"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    group_by_serial
> @@ -226,7 +237,7 @@
>  #	device {
>  #		vendor			"IBM"
>  #		product			"1750500"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #               prio_callout            "/sbin/mpath_prio_alua %d"	
>  #		features		"1 queue_if_no_path"
>  #		hardware_handler	"0"
> @@ -239,7 +250,7 @@
>  #       device {
>  #               vendor                  "IBM"
>  #               product                 "2107900"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"1 queue_if_no_path"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    multibus
> @@ -250,7 +261,7 @@
>  #	device {
>  #		vendor			"IBM"
>  #		product			"2145"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #               prio_callout            "/sbin/mpath_prio_alua /dev/%n"	
>  #		features		"1 queue_if_no_path"
>  #		hardware_handler	"0"
> @@ -275,7 +286,7 @@
>  #	device {
>  #		vendor			"NETAPP"
>  #		product			"LUN"
> -#		getuid_callout          "/sbin/scsi_id -g -u -s"
> +#		getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
>  #		prio_callout		"/sbin/mpath_prio_netapp /dev/%n"
>  #		features		"1 queue_if_no_path"
>  #		hardware_handler	"0"
> @@ -288,7 +299,7 @@
>  #	device {
>  #		vendor			"IBM"
>  #		product			"Nseries.*"
> -#		getuid_callout          "/sbin/scsi_id -g -u -s"
> +#		getuid_callout          "/sbin/scsi_id -g -u -s /block/%n"
>  #		prio_callout		"/sbin/mpath_prio_netapp /dev/%n"
>  #		features		"1 queue_if_no_path"
>  #		hardware_handler	"0"
> @@ -301,7 +312,7 @@
>  #	device {
>  #		vendor			"Pillar"
>  #		product			"Axiom 500"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #               prio_callout            "/sbin/mpath_prio_alua %d"	
>  #		features		"0"
>  #		hardware_handler	"0"
> @@ -313,7 +324,7 @@
>  #       device {
>  #               vendor                  "SGI"
>  #               product                 "TP9[13]00"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    multibus
> @@ -324,7 +335,7 @@
>  #       device {
>  #               vendor                  "SGI"
>  #               product                 "TP9[45]00"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #               prio_callout            "/sbin/mpath_prio_tpc /dev/%n"	
>  #		features		"0"
>  #		hardware_handler	"0"
> @@ -337,7 +348,7 @@
>  #       device {
>  #               vendor                  "STK"
>  #               product                 "OPENstorage D280"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #               prio_callout            "/sbin/mpath_prio_tpc /dev/%n"	
>  #		features		"0"
>  #		hardware_handler	"0"
> @@ -349,7 +360,7 @@
>  #       device {
>  #               vendor                  "SUN"
>  #               product                 "(StorEdge 3510|T4)"
> -#		getuid_callout		"/sbin/scsi_id -g -u -s"
> +#		getuid_callout		"/sbin/scsi_id -g -u -s /block/%n"
>  #		features		"0"
>  #		hardware_handler	"0"
>  #               path_grouping_policy    multibus
> --- multipath-tools/libmultipath/devmapper.c	2007/06/15 19:03:02	1.22.2.1
> +++ multipath-tools/libmultipath/devmapper.c	2007/08/14 18:08:54	1.22.2.2
> @@ -627,11 +627,15 @@
>  
>  	dm_task_no_open_count(dmt);
>  
> -	if (!dm_task_run(dmt))
> +	if (!dm_task_run(dmt)) {
> +		condlog(0, "can't get dm device list");
>  		goto out;
> +	}
>  
> -	if (!(names = dm_task_get_names(dmt)))
> +	if (!(names = dm_task_get_names(dmt))){ 
> +		condlog(0, "can't get dm device names\n");
>  		goto out;
> +	}
>  
>  	if (!names->dev) {
>  		r = 0; /* this is perfectly valid */
> @@ -646,8 +650,10 @@
>  
>  		mpp = alloc_multipath();
>  
> -		if (!mpp)
> +		if (!mpp) {
> +			condlog(0, "can't allocate multipath device\n");
>  			goto out;
> +		}
>  
>  		mpp->alias = STRDUP(names->name);
>  
> @@ -655,18 +661,25 @@
>  			goto out1;
>  
>  		if (info > 0) {
> -			if (dm_get_map(names->name, &mpp->size, mpp->params))
> +			if (dm_get_map(names->name, &mpp->size, mpp->params)) {
> +				condlog(0, "can't get multipath params\n");
>  				goto out1;
> +			}
>  
> -			if (dm_get_status(names->name, mpp->status))
> +			if (dm_get_status(names->name, mpp->status)) {
> +				condlog(0, "can't get multipath status\n");
>  				goto out1;
> +			}
>  
>  			dm_get_uuid(names->name, mpp->wwid);
>  			dm_get_info(names->name, &mpp->dmi);
>  		}
>  
> -		if (!vector_alloc_slot(mp))
> +		if (!vector_alloc_slot(mp)) {
> +			condlog(0, "can't allocate slot for multipath
> +				    device\n");
>  			goto out1;
> +		}
>  
>  		vector_set_slot(mp, mpp);
>  		mpp = NULL;
> --- multipath-tools/libmultipath/hwtable.c	2007/05/08 20:15:58	1.20.2.4
> +++ multipath-tools/libmultipath/hwtable.c	2007/08/14 18:08:54	1.20.2.5
> @@ -525,6 +525,24 @@
>  		.minio         = DEFAULT_MINIO,
>  		.checker_name  = READSECTOR0,
>  	},
> +	/*
> +	 * DELL arrays
> +	 */
> +	{
> +		.vendor        = "DELL",
> +		.product       = "MD3000",
> +		.getuid        = DEFAULT_GETUID,
> +		.getprio       = "/sbin/mpath_prio_tpc /dev/%n",
> +		.features      = DEFAULT_FEATURES,
> +		.hwhandler     = "1 rdac",
> +		.selector      = DEFAULT_SELECTOR,
> +		.pgpolicy      = GROUP_BY_PRIO,
> +		.pgfailback    = -FAILBACK_MANUAL,
> +		.rr_weight     = RR_WEIGHT_NONE,
> +		.no_path_retry = NO_PATH_RETRY_UNDEF,
> +		.minio         = DEFAULT_MINIO,
> +		.checker_name  = READSECTOR0,
> +	},
>  	/* 
>  	 * GNBD devices
>  	 *
> 
> --
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