iscsi session are same on RHEL servers but multipath do not show all paths for some servers

Solution Verified - Updated -

Issue

  • We have shared the lun to through linux virtual machines. The iscsi session are same and multipath its showing different.
Example 1:-

Host01:
Red Hat Enterprise Linux Server release 6.3 (Santiago)
Linux Host01  2.6.32-279.el6.x86_64 #1 SMP Wed Jun 13 18:24:36 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux


[root@Host01~]# iscsiadm -m session
tcp: [1] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438054
tcp: [2] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438051
tcp: [3] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d3100043804f
tcp: [4] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438055
tcp: [5] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438050
tcp: [6] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438056
tcp: [7] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438052
tcp: [8] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438053
[root@Host01 ~]# multipath -ll
mpathb (36000d3100043800000000000000000ba) dm-1 COMPELNT,Compellent Vol
size=20G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  |- 3:0:0:1 sda 8:0   active ready running
  |- 8:0:0:1 sdd 8:48  active ready running
  |- 4:0:0:1 sdb 8:16  active ready running
  `- 6:0:0:1 sdc 8:32  active ready running

Example 2:-

Host02

Red Hat Enterprise Linux Server release 6.3 (Santiago)
Linux Host02 2.6.32-279.el6.x86_64 #1 SMP Wed Jun 13 18:24:36 EDT 2012 x86_64 x86_64 x86_64 GNU/Linux

[root@Host02 ~]# iscsiadm -m session
tcp: [1] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438054
tcp: [2] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438050
tcp: [3] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438053
tcp: [4] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438056
tcp: [5] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438051
tcp: [6] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438055
tcp: [7] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d31000438052
tcp: [8] 10.x.x.x:3260,0 iqn.2002-03.com.compellent:5000d3100043804f
[root@Host02 ~]# multipath -ll
36000d31000438000000000000000006b dm-2 COMPELNT,Compellent Vol
size=100G features='1 queue_if_no_path' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  `- 8:0:0:1 sda 8:0   active ready running
  • We want to know why the multipath shows different output for these servers?

Environment

  • Red Hat Enterprise Linux 6
  • ISCSI

Subscriber exclusive content

A Red Hat subscription provides unlimited access to our knowledgebase of over 48,000 articles and solutions.

Current Customers and Partners

Log in for full access

Log In
Close

Welcome! Check out the Getting Started with Red Hat page for quick tours and guides for common tasks.