For reference, here is the /etc/multipath/bindings rendered by multipath -r in:
xenial:
mpath0 1IBM_IPR-0_5EC29C0000000080
mpath1 1IBM_IPR-0_5EC29C0000000060
mpath2 1IBM_IPR-0_5EC29C0000000040
mpath3 1IBM_IPR-0_5EC29C0000000020
mpath4 1IBM_IPR-0_5EC29C00000000C0
mpath5 1IBM_IPR-0_5EC29C00000000A0
For clarity, on trusty:
$ sed 's, ,.,g' /etc/multipath/bindings
mpath0.1IBM.....IPR-0...5EC29C0000000080
mpath1.1IBM.....IPR-0...5EC29C0000000060
mpath2.1IBM.....IPR-0...5EC29C0000000040
mpath3.1IBM.....IPR-0...5EC29C0000000020
mpath4.1IBM.....IPR-0...5EC29C00000000C0
mpath5.1IBM.....IPR-0...5EC29C00000000A0
Ie, there are multiple spaces (not tabs) in these wwid names.
For reference, here is the /etc/multipath/ bindings rendered by multipath -r in: 0_5EC29C0000000 080 0_5EC29C0000000 060 0_5EC29C0000000 040 0_5EC29C0000000 020 0_5EC29C0000000 0C0 0_5EC29C0000000 0A0
xenial:
mpath0 1IBM_IPR-
mpath1 1IBM_IPR-
mpath2 1IBM_IPR-
mpath3 1IBM_IPR-
mpath4 1IBM_IPR-
mpath5 1IBM_IPR-
trusty:
mpath0 1IBM IPR-0 5EC29C0000000080
mpath1 1IBM IPR-0 5EC29C0000000060
mpath2 1IBM IPR-0 5EC29C0000000040
mpath3 1IBM IPR-0 5EC29C0000000020
mpath4 1IBM IPR-0 5EC29C00000000C0
mpath5 1IBM IPR-0 5EC29C00000000A0
For clarity, on trusty: bindings 1IBM... ..IPR-0. ..5EC29C0000000 080 1IBM... ..IPR-0. ..5EC29C0000000 060 1IBM... ..IPR-0. ..5EC29C0000000 040 1IBM... ..IPR-0. ..5EC29C0000000 020 1IBM... ..IPR-0. ..5EC29C0000000 0C0 1IBM... ..IPR-0. ..5EC29C0000000 0A0
$ sed 's, ,.,g' /etc/multipath/
mpath0.
mpath1.
mpath2.
mpath3.
mpath4.
mpath5.
Ie, there are multiple spaces (not tabs) in these wwid names.