挂载nfs失败处理

故障一：

[[email protected] ~]#  mount -t nfs 172.16.3.122:/backup1/AllServerTomcatBack /backupTomcatsPJS
mount.nfs: Input/output error
You have new mail in /var/spool/mail/root
[[email protected] ~]#

排查：

[[email protected] /]# service portmap status
portmap (pid 6260) is running...

在客户端查看portmap运行状态，发现protmap服务没有运行.
因为NFS及其辅助程序都是基于RPC的，所以我们要确保系统中首先运行portmap服务。

解决办法：

[[email protected] ~]#  service portmap start
Starting portmap:                                          [  OK  ]
[[email protected] ~]#  mount -t nfs 172.16.3.122:/backup1/AllServerTomcatBack /backupTomcatsPJS
[[email protected] ~]#

故障二：

[[email protected] ~]# mount -t nfs 172.16.3.122:/backup1/AllServerTomcatBack /backupTomcatsPJS
mount: wrong fs type, bad option, bad superblock on 172.16.3.122:/backup1/AllServerTomcatBack,
       missing codepage or helper program, or other error
       (for several filesystems (e.g. nfs, cifs) you might
       need a /sbin/mount.<type> helper program)
       In some cases useful info is found in syslog - try
       dmesg | tail  or so

[[email protected] ~]#

解决办法：

[[email protected] ~]# yum install nfs-utils -y

[[email protected] ~]#  mount -t nfs 172.16.3.122:/backup1/AllServerTomcatBack /backupTomcatsPJS
[[email protected] ~]#