[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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