Hi All;

I have issue on Redhat linux server, it shows mutlipah device, how can I disable multipath ? Thank you.

[root@xxx-media4 ~]# uname -a
Linux xxx-media4 2.6.32-131.17.1.el6.x86_64 #1 SMP Thu Sep 29 10:24:25 EDT 2011 x86_64 x86_64 x86_64 GNU/Linux

I checked multipath process is not running

[root@xxx-media4 ~]# chkconfig --list | grep multipathd
multipathd 0 : off 1 : off 2 : off 3 : off 4 : off 5 : off 6 : off

[root@xxx-media4 ~]# tpautoconf -a
TPAC60 - - - -1~-1~-1~-1 2 - - - 0 - - - - - - - 0 0 - - xxx-media4 4 - 0 - - - -
TPAC60 Drive013 HP~~~~~~Ultrium~5-SCSI~~I6RZ /dev/nst83 -1~-1~-1~-1 1 0 0 8 8 10 - - - F0A23AF0AC - 6 0 1 - - xxx-media4 0 - 0 - - - -
TPAC60 Drive013 HP~~~~~~Ultrium~5-SCSI~~I6RZ /dev/nst59 -1~-1~-1~-1 1 0 0 8 8 10 - - - F0A23AF0AC - 6 0 1 - - xxx-media4 0 - 0 - - - -
TPAC60 Drive013 HP~~~~~~Ultrium~5-SCSI~~I6RZ /dev/nst35 -1~-1~-1~-1 1 0 0 8 8 10 - - - F0A23AF0AC - 6 0 1 - - xxx-media4 0 - 0 - - - -
TPAC60 Drive007 HP~~~~~~Ultrium~5-SCSI~~I6RZ /dev/nst82 -1~-1~-1~-1 1 0 1 12 8 10 - - - F0A23AB09C - 6 0 1 - - xxx-media4 0 - 0 - - - -
TPAC60 Drive007 HP~~~~~~Ultrium~5-SCSI~~I6RZ /dev/nst58 -1~-1~-1~-1 1 0 1 12 8 10 - - - F0A23AB09C - 6 0 1 - - xxx-media4 0 - 0 - - - -
TPAC60 Drive007 HP~~~~~~Ultrium~5-SCSI~~I6RZ /dev/nst34 -1~-1~-1~-1 1 0 1 12 8 10 - - - F0A23AB09C - 6 0 1 - - xxx-media4 0 - 0 - - - -

Where do you see the multipath drive? They are usually named /dev/mapper/mpatha, mpathb etc.

You may want to read this https://www.thegeekdiary.com/how-to-...Speed=noscript

nothing in /dev/mapper/

[root@xxx-media4 mapper]# ls -la
total 0
drwxr-xr-x 2 root root 80 Mar 5 09:44 .
drwxr-xr-x 20 root root 19360 Mar 5 09:47 ..
crw-rw---- 1 root root 10, 58 Mar 5 09:44 control
lrwxrwxrwx 1 root root 7 Mar 5 09:44 extra-lvol0 -> ../dm-0
[root@xxx-media4 mapper]#

1. /dev/dm-N
2. /dev/mapper/mpathN
3. /dev/mpath/mpathN

I don't any file in there

[root@xxx-media4 mapper]# ls -la /dev/dm-N
ls: cannot access /dev/dm-N: No such file or directory
[root@xxx-media4 mapper]# ls -la /dev/mpath/mpathN
ls: cannot access /dev/mpath/mpathN: No such file or directory
[root@xxx-media4 mapper]# ls -la /dev/mapper/mpathN
ls: cannot access /dev/mapper/mpathN: No such file or directory
[root@xxx-media4 mapper]#

Then you don’t have a multipath device.

What is the output of: