Issue

• If one of 2 path do not work, multipath automatically do not change the path.

# rpm -qa | grep mult
device-mapper-multipath-0.4.7-48.el5

# multipath -ll
sdc: checker msg is "emc_clariion_checker: query command indicates error"
mpath0 (3600601608e1129005ec4811ec128e211) dm-0 DGC,VRAID
[size=15G][features=1 queue_if_no_path][hwhandler=1 emc][rw]
\_ round-robin 0 [prio=1][active]
 \_ 0:0:0:0 sda 8:0   [active][ready] 
 \_ 1:0:0:0 sdc 8:32  [failed][faulty]
\_ round-robin 0 [prio=0][enabled]
 \_ 0:0:1:0 sdb 8:16  [active][ready] 
 \_ 1:0:1:0 sdd 8:48  [active][ready]