Kernel: Device-mapper: table: 253:8: multipath error getting device

Kernel: Device-mapper: table: 253:8: multipath error getting device,

Not able to see Multipath lun after system reboot

Issue is multipath service is running but the server was not login in to the iscsi storage.,So we manually login to the storage server using iscsiadm command then we are able to discover the device and mount.

Session-1

[root@ ~]# service multipathd restart

Stopping multipathd daemon:                                [  OK  ]

Starting multipathd daemon:                                [  OK  ]

[root@ ~]# multipath -l

[root@ ~]# service multipathd status

multipathd (pid  30249) is running...

Session-2

In other session try tail –f /var/log/messages

Checking manually login to md storage

iscsiadm -m node -p >storage_ip> –l

After login do check path was discovered multipath –ll

Now the mdstorage mount –a

[root@~]# mount -a

[root@ ~]#

df –h to see mount point is mounted