Why is 'multipath -r' reporting "path is down" messages when the paths are active?

Solution Verified - Updated -

Issue

The multipath -r command shows many "path is down" messages, even though paths are known to be active.

 mpath248 (231d980035423c53967555a1424678555) 
[size=10G][features=1
 queue_if_no_path][hwhandler=0][n/a]
\_ round-robin 0 
[prio=200][undef]
 \_ 2:0:3:1  sdaa 65:161 [active][ready]
 \_ 2:0:4:1  sdam 66:83  [active][ready]
 \_ 3:0:2:1  sdbk 67:133 [active][ready]
 \_ 3:0:3:1  sdci 69:63  [active][ready]
\_round-robin 0 [prio=30][undef]
 \_ 3:0:2:1  sday 67:31  [active][ready]
 \_ 3:0:4:1  sdbw 68:130 [active][ready]
 \_ 6:0:0:1  sdc  8:23   [active][ready]
 \_ 6:0:4:1  sdo  8:223  [active][ready]
sdba: checker msg is "directio checker reports path is down"
sdaf: checker msg is "directio checker reports path is down"
sdax: checker msg is "directio checker reports path is down"
sdbc: checker msg is "directio checker reports path is down"
sdbg: checker msg is "directio checker reports path is down"
sdcn: checker msg is "directio checker reports path is down"
sde: checker msg is "directio checker reports path is down"

Environment

  • Red Hat Enterprise Linux 5.4
  • device-mapper-multipath-0.4.7-34.el5_5.1

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.