Linux系統NFS故障現象

1、故障

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故障：clnt_create: RPC: Port mapper failure - Unable to receive: errno 111 (Connection refused)

緣由：NFS服務端RPC服務沒有啓動，須要將RPC服務啓動

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故障：clnt_create: RPC: Program not registered
緣由：NFS服務先啓動，RPC後啓動，須要將NFS服務從新啓動

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故障：clnt_create: RPC: Port mapper failure - Unable to receive: errno 113 (No route to host)

緣由：NFS服務端，防火牆攔截

2、NFS狀態信息

1）
[root@nfs_server ~]# cat /var/lib/nfs/rmtab 
192.168.1.114:/data:0x00000001
2）
[root@nfs_server ~]# cat /var/lib/nfs/etab 
/data    192.168.1.0/24(rw,sync,wdelay,hide,nocrossmnt,secure,root_squash,all_squash,no_subtree_check,secure_locks,acl,anonuid=1000,anongid=1000)
3）