DRBD故障恢复（一）：节点无法通信，节点为StandAlone状态

小鱼儿 2022-05-20 00:09 350阅读 0赞

# 操作环境 #

操作环境同[《Centos7下配置DRBD搭建HA NFS Cluster》][Centos7_DRBD_HA NFS Cluster]中

# 问题描述 #

主副节点启动后，在主节点查看drbd状态如下

[root@drbd-node1 ~]# drbd-overview 
    NOTE: drbd-overview will be deprecated soon.
    Please consider using drbdtop.
    
     0:scsivol/0  Connec/StaAlo Second/Unknow UpToDa/DUnkno

再副节点查看drbd状态如下：

[root@drbd-node3 ~]# drbd-overview 
    NOTE: drbd-overview will be deprecated soon.
    Please consider using drbdtop.
    
     0:scsivol/0  Connec/StaAlo Second/Unknow UpToDa/DUnkno

# 解决方法 #

1.在副节点drbd-node3中执行以下命令后，查看drbd状态，StandAlone状态已经改变

[root@drbd-node3 ~]# drbdadm disconnect scsivol
    [root@drbd-node3 ~]# drbdadm connect --discard-my-data scsivol
    [root@drbd-node3 ~]# drbd-overview 
    NOTE: drbd-overview will be deprecated soon.
    Please consider using drbdtop.
    
     0:scsivol/0  Connec/C'ting Second/Unknow UpToDa/DUnkno

2.在主节点drbd-node1上执行以下命令，drbd状态恢复正常

[root@drbd-node1 ~]# drbdadm connect scsivol
    [root@drbd-node1 ~]# drbd-overview 
    NOTE: drbd-overview will be deprecated soon.
    Please consider using drbdtop.
    
     0:scsivol/0  Connected(2*) Secondary(2*) UpToDa/Incons 
    [root@drbd-node1 ~]# drbdadm primary scsivol
    [root@drbd-node1 ~]# drbdadm role scsivol
    Primary
    [root@drbd-node1 ~]# drbd-overview 
    NOTE: drbd-overview will be deprecated soon.
    Please consider using drbdtop.
    
     0:scsivol/0  Connected(2*) Primar/Second UpToDa/UpToDa

[Centos7_DRBD_HA NFS Cluster]: https://blog.csdn.net/bobpen/article/details/80949060