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hi list. I'm working with fastt storage and experience some problems with multipath-tools. as you
can see bellow, multapath can't create mpath0, but mpath1 successful created. I can't understand
why. googling around two days without any result. help me, please;(
alexander
info-------------------------------------------------------------------------------------------------
OS: CentOS 4.92
kernel: 2.6.18-1.2747.el5xen
multipath.conf (default):
defaults {
user_friendly_names yes
}
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 1000
rr_weight priorities
failback immediate
no_path_retry fail
user_friendly_name yes
}
multipath -v3 output:
mpath0: pgfailback = -2 (config file default)
mpath0: pgpolicy = multibus (config file default)
mpath0: selector = round-robin 0 (internal default)
mpath0: features = 0 (internal default)
mpath0: hwhandler = 0 (internal default)
mpath0: rr_weight = 2 (config file default)
mpath0: minio = 1000 (config file default)
mpath0: no_path_retry = -1 (config file default)
pg_timeout = NONE (internal default)
mpath0: set ACT_CREATE (map does not exist)
mpath0: domap (0) failure for create/reload map
dmesg output:
device-mapper: table: 253:5: multipath: error getting device
device-mapper: ioctl: error adding target to table
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