Multipath problem on s390x
Hi
I have problem with disk which fail for multipath....
Not able to get multipath for 4 disks ... Is it problem devicemapper problem? or its bug with debain ?
Please help me its urgent
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# uname -a
Linux Z9LNX05 2.6.18-6-s390 #1 SMP Mon Feb 11 09:16:19 UTC 2008 s390 GNU/Linux
# cat /etc/issue
Debian GNU/Linux 4.0 \n \l
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/etc/multipath looks fine
# Blacklist all devices by default. Remove this to enable multipathing
# on the default devices.
devnode_blacklist {
# devnode "*"
devnode "dasda.*"
}
## Use user friendly names, instead of using WWIDs as names.
defaults {
user_friendly_names yes
}
## By default, devices with vendor = "IBM" and product = "S/390.*" are
##
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
rr_weight priorities
# failback immediate
no_path_retry fail
user_friendly_name yes
}
##
## The wwid line in the following blacklist section is shown as an example
##
devnode_blacklist {
# wwid 26353900f02796769
devnode "^(ram|raw|loop|fd|md|dasd.*|sr|scd|st)[0-9]*"
devnode "^hd[a-z]"
devnode "^cciss!c[0-9]d[0-9]*"
}
But when i ran
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lsscsi
[0:0:0:0] disk IBM 2107900 .437 /dev/sda
[0:0:0:1] disk IBM 2107900 .437 /dev/sdb
[0:0:0:2] disk IBM 2107900 .437 /dev/sdc
[0:0:0:3] disk IBM 2107900 .437 /dev/sdd
__________________________________________________________________________________________________________
multipath -ll
mpath2 (36005076305ffc3100000000000001003) dm-2 ,
[size=50G][features=0][hwhandler=0]
\_ round-robin 0 [prio=0][active]
\_ #:#:#:# - #:# [active][faulty] ----------------------------------------------------------------(Eroor)
mpath38 (36005076305ffc3100000000000001112) dm-38 IBM,2107900
[size=50G][features=0][hwhandler=0]
\_ round-robin 0 [prio=0][active]
\_ 0:0:0:38 sdam 66:96 [active][ready]
mpath23 (36005076305ffc3100000000000001018) dm-23 IBM,2107900
[size=50G][features=0][hwhandler=0]
\_ round-robin 0 [prio=0][active]
\_ 0:0:0:23 sdx 65:112 [active][ready]
mpath55 (36005076305ffc3100000000000001123) dm-55 IBM,2107900
[size=50G][features=0][hwhandler=0]
\_ round-robin 0 [prio=0][active]
\_ 0:0:0:55 sdbd 67:112 [active][ready]
mpath40 (36005076305ffc3100000000000001114) dm-40 IBM,2107900
[size=50G][features=0][hwhandler=0]
\_ round-robin 0 [prio=0][active]
\_ 0:0:0:40 sdao 66:128 [active][ready]
mpath87 (36005076305ffc3100000000000001042) dm-87 IBM,2107900
[size=50G][features=0][hwhandler=0]
\_ round-robin 0 [prio=0][active]
\_ 0:0:0:87 sdcj 69:112 [active][ready]
mpath72 (36005076305ffc3100000000000001033) dm-72 IBM,2107900
[size=50G][features=0][hwhandler=0]
\_ round-robin 0 [prio=0][active]
\_ 0:0:0:72 sdbu 68:128 [active][ready]
mpath1 (36005076305ffc3100000000000001002) dm-1 ,
[size=50G][features=0][hwhandler=0]
\_ round-robin 0 [prio=0][active]
\_ #:#:#:# - #:# [active][faulty]------------------------------------------------------------------------(Error)
------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
# fdisk -l /dev/sda
Disk /dev/sda: 53.6 GB, 53687091200 bytes
64 heads, 32 sectors/track, 51200 cylinders
Units = cylinders of 2048 * 512 = 1048576 bytes
Disk /dev/sda doesn't contain a valid partition table
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