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03-29-2016 09:16 AM
03-29-2016 09:16 AM
multipath -ll command not showing anything
Hi,
I have installed RHEL 7.2 on blade and it has two BHA cards and both are shwoing "Online" as state.
And even i created lun on 3PAR and presneted to server
On server, i created logical volume using lvcreate and formwated to ext3
Now, question is, command "multipath -ll" not showing anything,
some of the commands i executed to make server detect the lun is below.
echo "1" > /sys/class/fc_host/host1/issue_lip
echo "- - -" > /sys/class/scsi_host/host1/scan
All of the below commands are not working and not displaying anything.
# multipathd -v0
# multipath -v2
Also, the /dev/mapper do not show any mpathn entry in this directory.
I have below entry on /etc/multipath.conf file, also it has
blacklist {
devnode “sda”
}
defaults {
user_friendly_names yes
path_group_policy failover
}
Why the multipath -ll command not showing anything, do i need to do any different configuration? or missing any setup here?
- Tags:
- 3PAR
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04-05-2016 06:18 PM
04-05-2016 06:18 PM
Re: multipath -ll command not showing anything
How about adding Vendor specific configuration also in to multipath.conf.
The document http://h20628.www2.hp.com/km-ext/kmcsdirect/emr_na-c03290635-13.pdf , page 50 talks about Device { } section configuration for 3Par storages on RHEL 6 / 5 / 4, not mentioned anything about RHEL 7.
I have experienced similar problem in RHEL 6.x (not on 3PAR) because of misconfiguration in /etc/multipath.conf. The log message was reporting path checker related errors in /var/log/messages during daemon startup and "multipath -ll -v3" was showing some errors indicating problem in determining the paths.
Thanks
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04-06-2016 10:27 PM
04-06-2016 10:27 PM
Re: multipath -ll command not showing anything
Hi, did you uncomment default black list, it is, as I remember, put any disk there.