[Bug 1020436] Re: Cannot read superblock after FC multipath failover

Steve Fisher stefan.nicolaivic at gmail.com
Tue Jul 10 05:31:02 UTC 2012


<user>@<hostname>:~$ sudo dmsetup table
mpath2: 0 8388608 multipath 1 queue_if_no_path 0 1 1 round-robin 0 4 1 8:48 1000 8:96 1000 8:144 1000 8:192 1000 
mpath1: 0 8388608 multipath 1 queue_if_no_path 0 1 1 round-robin 0 4 1 8:128 1000 8:32 1000 8:80 1000 8:176 1000 
mpath0: 0 1048576000 multipath 1 queue_if_no_path 0 1 1 round-robin 0 4 1 8:160 1000 8:16 1000 8:64 1000 8:112 1000 
test2-lvol0: 0 8380416 linear 8:192 384
test-lvol0: 0 8380416 linear 8:176 384
<vgname2>-san: 0 1048567808 linear 8:160 384
<vgname>-slash: 0 48824320 linear 8:1 384
<vgname>-swap: 0 9764864 linear 8:1 48824704

----

<user>@<hostname>:~$ sudo echo "show config" | sudo multipathd -k
multipathd> show config
defaults {
	user_friendly_names yes
}
blacklist {
	devnode ^(ram|raw|loop|fd|md|dm-|sr|scd|st)[0-9]*
	devnode ^hd[a-z]
	devnode ^dcssblk[0-9]*
	devnode ^cciss!c[0-9]d[0-9]*
	wwid 3600605b0039afe20ff000054052e7d38
	device {
		vendor DGC
		product LUNZ
	}
	device {
		vendor IBM
		product S/390.*
	}
}
blacklist_exceptions {
}
devices {
	device {
		vendor APPLE*
		product Xserve RAID 
		path_grouping_policy multibus
	}
	device {
		vendor 3PARdata
		product VV
		path_grouping_policy multibus
	}
	device {
		vendor DEC
		product HSG80
		path_grouping_policy group_by_prio
		path_checker hp_sw
		features 1 queue_if_no_path
		hardware_handler 1 hp_sw
		prio_callout /sbin/mpath_prio_hp_sw /dev/%n
	}
	device {
		vendor HP
		product A6189A
		path_grouping_policy multibus
		path_checker readsector0
	}
	device {
		vendor (COMPAQ|HP)
		product (MSA|HSV)1.0.*
		path_grouping_policy group_by_prio
		path_checker hp_sw
		features 1 queue_if_no_path
		hardware_handler 1 hp_sw
		prio_callout /sbin/mpath_prio_hp_sw /dev/%n
	}
	device {
		vendor HP
		product MSA VOLUME
		path_grouping_policy group_by_prio
		path_checker tur
		prio_callout /sbin/mpath_prio_alua /dev/%n
		failback immediate
	}
	device {
		vendor (COMPAQ|HP)
		product (MSA|HSV)1.1.*
		path_grouping_policy group_by_prio
		path_checker tur
		prio_callout /sbin/mpath_prio_alua /dev/%n
		failback immediate
	}
	device {
		vendor HP
		product HSV2.*
		path_grouping_policy group_by_prio
		path_checker tur
		prio_callout /sbin/mpath_prio_alua /dev/%n
		failback immediate
	}
	device {
		vendor HP
		product LOGICAL VOLUME.*
		path_grouping_policy multibus
		getuid_callout /lib/udev/scsi_id -n -g -u -d /dev/%n
		path_checker tur
	}
	device {
		vendor DDN
		product SAN DataDirector
		path_grouping_policy multibus
	}
	device {
		vendor EMC
		product SYMMETRIX
		path_grouping_policy multibus
		getuid_callout /lib/udev/scsi_id -g -u -ppre-spc3-83 -d /dev/%n
		path_checker readsector0
	}
	device {
		vendor DGC
		product .*
		product_blacklist LUNZ
		path_grouping_policy group_by_prio
		path_checker emc_clariion
		features 1 queue_if_no_path
		hardware_handler 1 emc
		prio_callout /sbin/mpath_prio_emc /dev/%n
		failback immediate
		no_path_retry 60
	}
	device {
		vendor FSC
		product CentricStor
		path_grouping_policy group_by_serial
		path_checker readsector0
	}
	device {
		vendor (HITACHI|HP)
		product OPEN-.*
		path_grouping_policy multibus
		path_checker tur
		features 1 queue_if_no_path
	}
	device {
		vendor HITACHI
		product DF.*
		path_grouping_policy group_by_prio
		path_checker tur
		features 1 queue_if_no_path
		prio_callout /sbin/mpath_prio_hds_modular /dev/%n
		failback immediate
	}
	device {
		vendor IBM
		product ProFibre 4000R
		path_grouping_policy multibus
		path_checker readsector0
	}
	device {
		vendor IBM
		product 1742
		path_grouping_policy group_by_prio
		path_checker tur
		prio_callout /sbin/mpath_prio_rdac /dev/%n
		failback immediate
	}
	device {
		vendor IBM
		product 3526
		path_grouping_policy group_by_prio
		path_checker tur
		prio_callout /sbin/mpath_prio_rdac /dev/%n
		failback immediate
	}
	device {
		vendor IBM
		product 3542
		path_grouping_policy group_by_serial
		path_checker tur
	}
	device {
		vendor IBM
		product 2105(800|F20)
		path_grouping_policy group_by_serial
		path_checker tur
		features 1 queue_if_no_path
	}
	device {
		vendor IBM
		product 1750500
		path_grouping_policy group_by_prio
		path_checker tur
		features 1 queue_if_no_path
		prio_callout /sbin/mpath_prio_alua /dev/%n
		failback immediate
	}
	device {
		vendor IBM
		product 2107900
		path_grouping_policy multibus
		path_checker tur
		features 1 queue_if_no_path
	}
	device {
		vendor IBM
		product 2145
		path_grouping_policy group_by_prio
		path_checker tur
		features 1 queue_if_no_path
		prio_callout /sbin/mpath_prio_alua /dev/%n
		failback immediate
	}
	device {
		vendor IBM
		product S/390 DASD ECKD
		product_blacklist S/390.*
		path_grouping_policy multibus
		getuid_callout /sbin/dasdinfo -u -b %n
		features 1 queue_if_no_path
	}
	device {
		vendor NETAPP
		product LUN.*
		path_grouping_policy group_by_prio
		path_checker readsector0
		features 1 queue_if_no_path
		prio_callout /sbin/mpath_prio_netapp /dev/%n
		failback immediate
		rr_min_io 128
	}
	device {
		vendor IBM
		product Nseries.*
		path_grouping_policy group_by_prio
		path_checker readsector0
		features 1 queue_if_no_path
		prio_callout /sbin/mpath_prio_netapp /dev/%n
		failback immediate
		rr_min_io 128
	}
	device {
		vendor Pillar
		product Axiom.*
		path_grouping_policy group_by_prio
		path_checker tur
		prio_callout /sbin/mpath_prio_alua %n
	}
	device {
		vendor SGI
		product TP9[13]00
		path_grouping_policy multibus
		path_checker readsector0
	}
	device {
		vendor SGI
		product TP9[45]00
		path_grouping_policy group_by_prio
		path_checker rdac
		prio_callout /sbin/mpath_prio_rdac /dev/%n
		failback immediate
		no_path_retry queue
	}
	device {
		vendor SGI
		product IS.*
		path_grouping_policy group_by_prio
		path_checker rdac
		prio_callout /sbin/mpath_prio_rdac /dev/%n
		failback immediate
		no_path_retry queue
	}
	device {
		vendor STK
		product OPENstorage D280
		path_grouping_policy group_by_prio
		path_checker tur
		prio_callout /sbin/mpath_prio_rdac /dev/%n
		failback immediate
	}
	device {
		vendor SUN
		product (StorEdge 3510|T4)
		path_grouping_policy multibus
		path_checker readsector0
	}
}
multipaths {
}
multipathd>

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https://bugs.launchpad.net/bugs/1020436

Title:
  Cannot read superblock after FC multipath failover

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