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Old 11-03-2013, 02:27 AM   #1
heman1979
LQ Newbie
 
Registered: Nov 2013
Posts: 2

Rep: Reputation: Disabled
DM multipath :iscsi lun shows by diff names on two server where its exported


Hi,

I am trying to setup multipathing (using DM multipath) for a redhat cluster setup ...all setup is done but issue is :

node 1 shows the shared iscsi lun as sdc
node 2 shows the same as sdg (changes on reboots)

Due to this (i guess) i get i/o error & i can not read files created by other node. eg


[root@rh600 Packages]# cd /var/www/html/
[root@rh600 html]# ls
ls: cannot access index.html: Input/output error
index.html lost+found test
[root@rh600 html]#

[root@rh500 html]# ls -l
ls: cannot access index.html: Input/output error
total 13
-????????? ? ? ? ? ? index.html
drwxrwxrwx 2 root root 12288 Nov 2 21:32 lost+found
-rw-r--r-- 1 root root 5 Nov 2 21:39 test
[root@rh500 html]#

also

[root@rh500 html]#
[root@rh500 html]# multipath -ll
mpath0 (2368a509c7e0b2eb4) dm-0 ROCKET,IMAGEFILE
size=300M features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
`- 4:0:0:0 sdc 8:32 active ready running
[root@rh500 html]#


[root@rh600 ~]# multipath -ll
mpath0 (2368a509c7e0b2eb4) dm-0 ROCKET,IMAGEFILE
size=300M features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
`- 6:0:0:0 sdl 8:176 active ready running
[root@rh600 ~]#


Anyone knows work-around for this ?

Thanks in advance
 
Old 11-03-2013, 01:59 PM   #2
heman1979
LQ Newbie
 
Registered: Nov 2013
Posts: 2

Original Poster
Rep: Reputation: Disabled
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