multipath -ll <mapname> returned nothing if device names are whiltelisted using 'devnode'

Solution Verified - Updated -

Issue

  • If device names are whitelisted using devnode, device details returned in multipath -ll topology are not returning output when query explictly by map name.
 # multipath -ll
mpathb (1IET     00020001) dm-0 IET,VIRTUAL-DISK
size=2.0G features='0' hwhandler='0' wp=rw
`-+- policy='round-robin 0' prio=1 status=active
  `- 2:0:0:1 sdb 8:16 active ready running
# multipath -ll -v4 mpathb
Oct 02 14:30:44 | mpathb: device node name blacklisted

Environment

  • Red Hat Enterprise Linux 6
  • device-mapper-multipath

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.