DRBD安装问题

luxinjun

现有两个虚拟机，系统centos 5.5 ，安装drbd版本为8.3.1 ,安装完成后两台主机只能启动一个，当启动另外一台机器后，开始启动的那台机器自动关闭了DRBD服务。不知道怎么回事啊，大家帮我分析一下，谢谢！！我的配置文件如下：
# more drbd.d/oradata.res
resource oradata
  protocol C;
        startup {
    degr-wfc-timeout 120;   
  }
        disk {
    on-io-error   detach;
  }
        net {
  }
syncer {
        rate 100M;
        al-extents 257;
  }
  on sys_1{
    device    /dev/drbd0;
    disk      /dev/sda5;
    address   192.168.1.21:7788;
    meta-disk internal;
  }
  on sys_2{
    device    /dev/drbd0;
    disk      /dev/sda5;
    address   192.168.1.22:7788;
    meta-disk internal;
  }
}



停止的那台日志显示信息如下：

Oct 13 11:41:01 sys_2 kernel: drbd0: Handshake successful: Agreed network protocol version 89
Oct 13 11:41:01 sys_2 kernel: drbd0: conn( WFConnection -> WFReportParams )
Oct 13 11:41:01 sys_2 kernel: drbd0: Starting asender thread (from drbd0_receiver [9691])
Oct 13 11:41:01 sys_2 kernel: drbd0: data-integrity-alg: <not-used>
Oct 13 11:41:01 sys_2 kernel: drbd0: some backing storage is needed
Oct 13 11:41:01 sys_2 kernel: drbd0: conn( WFReportParams -> Disconnecting )
Oct 13 11:41:01 sys_2 kernel: drbd0: error receiving ReportSizes, l: 32!
Oct 13 11:41:01 sys_2 kernel: drbd0: asender terminated
Oct 13 11:41:01 sys_2 kernel: drbd0: Terminating asender thread
Oct 13 11:41:01 sys_2 kernel: drbd0: Connection closed
Oct 13 11:41:01 sys_2 kernel: drbd0: conn( Disconnecting -> StandAlone )
Oct 13 11:41:01 sys_2 kernel: drbd0: receiver terminated
Oct 13 11:41:01 sys_2 kernel: drbd0: Terminating receiver thread
Oct 13 11:41:01 sys_2 kernel: drbd0: drbd_bm_resize called with capacity == 0
Oct 13 11:41:01 sys_2 kernel: drbd0: worker terminated
Oct 13 11:41:01 sys_2 kernel: drbd0: Terminating worker thread

q1208c

Oct 13 11:41:01 sys_2 kernel: drbd0: some backing storage is needed