in addition, my  host systeme is CentOS7 and ovirt version is 3.5.1

2015-01-27 14:50 GMT+08:00 Xiaoqiang Zhou <zhouxiaoqiang.mstech@gmail.com>:
Hi ALL:
     have some wrong when add data domain into a data center.
      I can not add a data domain from web panel.
      error log on vdsm server:
      Jan 27 14:49:12 localhost rpc.mountd[3020]: authenticated mount request from 192.168.60.38:730 for /opt/ovirt-node-nfs/data (/opt/ovirt-node-nfs/data)
Jan 27 14:49:12 localhost kernel: device-mapper: table: 253:5: multipath: error getting device
Jan 27 14:49:12 localhost kernel: device-mapper: ioctl: error adding target to table
Jan 27 14:49:12 localhost multipathd: dm-5: remove map (uevent)
Jan 27 14:49:12 localhost multipathd: dm-5: remove map (uevent)
Jan 27 14:49:13 localhost avahi-daemon[1223]: Received response from host 192.168.61.145 with invalid source port 40237 on interface 'ovirtmgmt.0'
Jan 27 14:49:14 localhost kernel: device-mapper: table: 253:5: multipath: error getting device
Jan 27 14:49:14 localhost kernel: device-mapper: ioctl: error adding target to table
Jan 27 14:49:14 localhost multipathd: dm-5: remove map (uevent)
Jan 27 14:49:14 localhost multipathd: dm-5: remove map (uevent)


      [root@localhost etc]# cat multipath.conf 
# RHEV REVISION 1.1

defaults {
    polling_interval        5
    getuid_callout          "/usr/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/%n"
    no_path_retry           fail
    user_friendly_names     no
    flush_on_last_del       yes
    fast_io_fail_tmo        5
    dev_loss_tmo            30
    max_fds                 4096
}

devices {
device {
    vendor                  "HITACHI"
    product                 "DF.*"
    getuid_callout          "/usr/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/%n"
}
device {
    vendor                  "COMPELNT"
    product                 "Compellent Vol"
    no_path_retry           fail
}
device {
    # multipath.conf.default
    vendor                  "DGC"
    product                 ".*"
    product_blacklist       "LUNZ"
    path_grouping_policy    "group_by_prio"
    path_checker            "emc_clariion"
    hardware_handler        "1 emc"
    prio                    "emc"
    failback                immediate
    rr_weight               "uniform"
    # vdsm required configuration
    getuid_callout          "/usr/lib/udev/scsi_id --whitelisted --replace-whitespace --device=/dev/%n"
    features                "0"
    no_path_retry           fail
}
    
     someone can tell me how to fix this issue, thanks