Moved: "multipath: C9 Inquiry of device </dev/sdk> failed

(moved from https://access.redhat.com/discussion/multipath-output-0#comment-3585)

This is my output in my servers

I have a installed a RHEL 5.6 and does not arise because the initial errors.

[root@srxen15 ~]# multipath -ll
C9 Inquiry of device failed.
C9 Inquiry of device failed.
C9 Inquiry of device failed.
C9 Inquiry of device failed.
C9 Inquiry of device failed.
C9 Inquiry of device failed.
QASTAGE (2001738000a7a13c8) dm-4 IBM,2810XIV
[size=304G][features=1 queue_if_no_path][hwhandler=0][rw]
\_ round-robin 0 [prio=0][active]
 \_ 2:0:1:1 sdk 8:160 [active][ready]
 \_ 2:0:2:1 sdl 8:176 [active][ready]
 \_ 2:0:3:1 sdm 8:192 [active][ready]
 \_ 1:0:2:1 sdq 65:0  [active][ready]
 \_ 1:0:3:1 sdr 65:16 [active][ready]
 \_ 1:0:4:1 sds 65:32 [active][ready]
IDS_OLVGUM (3600a0b800047bcbc0000fe8f4cb7f4e2) dm-2 IBM,1818      FAStT
[size=140G][features=0][hwhandler=1 rdac][rw]
\_ round-robin 0 [prio=200][active]
 \_ 1:0:0:2 sdd 8:48  [active][ready]
 \_ 2:0:0:2 sdh 8:112 [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ 1:0:1:2 sdo 8:224 [active][ready]
xen_lun_1 (3600a0b800047bcbc0000f5f54c1709eb) dm-0 IBM,1818      FAStT
[size=50G][features=0][hwhandler=1 rdac][rw]
\_ round-robin 0 [prio=200][active]
 \_ 1:0:0:0 sdb 8:16  [active][ready]
 \_ 2:0:0:0 sdf 8:80  [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ 1:0:1:0 sdj 8:144 [active][ready]
IDS (3600a0b800047bcbc0000fe8c4cb7f4ce) dm-1 IBM,1818      FAStT
[size=120G][features=0][hwhandler=1 rdac][rw]
\_ round-robin 0 [prio=200][active]
 \_ 1:0:0:1 sdc 8:32  [active][ready]
 \_ 2:0:0:1 sdg 8:96  [active][ready]
\_ round-robin 0 [prio=0][enabled]
 \_ 1:0:1:1 sdn 8:208 [active][ready]
QUORUM (3600a0b800047bcbc0000148d4d82df8b) dm-3 IBM,1818      FAStT
[size=200M][features=0][hwhandler=1 rdac][rw]
\_ round-robin 0 [prio=0][enabled]
 \_ 1:0:0:3 sde 8:64  [active][ready]
 \_ 2:0:0:3 sdi 8:128 [active][ready]
\_ round-robin 0 [prio=100][active]
 \_ 1:0:1:3 sdp 8:240 [active][ready]

This is my multipath.conf

# cat /etc/multipath.conf
# $Id: multipath.conf,v 1.4 2010/08/11 08:41:17 root Exp root $

# Blacklist all devices by default. Remove this to enable multipathing
# on the default devices.
blacklist {
        devnode "sda"

}

## Use user friendly names, instead of using WWIDs as names.
defaults {
    user_friendly_names        yes
    polling_interval        30
    flush_on_last_del        yes
        path_grouping_policy        group_by_serial
    no_path_retry            fail
        path_checker            tur
        failback            manual
    prio_callout "/sbin/mpath_prio_rdac /dev/%n"
}

devices {
    device {
        vendor            "IBM"
        product        "1818"
        hardware_handler    "1 rdac"
    }
        device {
                vendor                  "IBM"
                product                 "2810XIV"
                rr_min_io 1000
                path_checker tur
                failback immediate
                no_path_retry queue
        }

}

multipaths {
    multipath {
        wwid               3600a0b800047bcbc0000f5f54c1709eb
        alias              xen_lun_1
    }
    multipath {
            wwid               3600a0b800047bcbc0000fe8c4cb7f4ce
            alias              IDS
    }
    multipath {
        wwid               3600a0b800047bcbc0000fe8f4cb7f4e2
            alias              IDS_OLVGUM
    }
    multipath {
        wwid            2001738000a7a13c8
        alias            QASTAGE
    }
    multipath {
        wwid            3600a0b800047bcbc0000148d4d82df8b
        alias            QUORUM
    }

}