AIX 挂载nfs提示vmount: Not owner

exp到一半，断掉了

发现nfs磁盘也不见了

mount -o rw,bg,hard,nointr,rsize=32768,wsize=32768,proto=tcp,vers=3,timeo=600 172.xx.xx.xx:/orabak /orabak

就报了vmount: Not owner

查了google，

问题描述:

Linux 服务器上共享了/nfs 这个目录，如何将这个共享目录正确的挂载到AIX 的/data/wuxf 这个挂点。

解答:

1.在Linux 服务器上共享/nfs 这个目录, 在/etc/exports文件定义：

/nfs *(rw,no_root_squash,sync)

hostname : testcom

#service portmap start

#service nfslock start

#service nfs start

2.在AIX 端检查Linux的nfs 共享目录有没有存在：

whoselife@/data>showmount -e testcom

*:/nfs

如果AIX上portmap 没有启动，运行showmount -e会出现如下报错：

whoselife@/data>showmount -e

whoselife: RPC: 1832-019 Program not registered

如果出现1832-019的报错需要重新启动portmap 和nfs 的服务：

whoselife@/data>stopsrc -g nfs

0513-044 The biod Subsystem was requested to stop.

0513-044 The nfsd Subsystem was requested to stop.

0513-044 The rpc.mountd Subsystem was requested to stop.

0513-044 The rpc.lockd Subsystem was requested to stop.

0513-044 The rpc.statd Subsystem was requested to stop.

whoselife@/data>stopsrc -s portmap

0513-044 The portmap Subsystem was requested to stop.

whoselife@/data>startsrc -s portmap

0513-059 The portmap Subsystem has been started. Subsystem PID is 954432.

whoselife@/data>startsrc -g nfs

0513-059 The biod Subsystem has been started. Subsystem PID is 344286.

0513-059 The nfsd Subsystem has been started. Subsystem PID is 618542.

0513-059 The rpc.mountd Subsystem has been started. Subsystem PID is 975026.

0513-059 The nfsrgyd Subsystem has been started. Subsystem PID is 380956.

0513-059 The gssd Subsystem has been started. Subsystem PID is 380958.

0513-059 The rpc.lockd Subsystem has been started. Subsystem PID is 380960.

0513-059 The rpc.statd Subsystem has been started. Subsystem PID is 143412.

whoselife@/data>showmount -e testcom

*:/nfs

这样就成功检测到了共享文件。

3. 检查/etc/hosts ,确定服务器和客户机的主机名地址可以正确解析。

whoselife@/>traceroute testcom

trying to get source for testcom

source should be 9.123.x.y

traceroute to testcom (9.123.a.b) from 9.123.x.4 (9.123.x.y), 30 hops max

outgoing MTU = 1500

1 9.123.x.4 (9.123.x.4) 1 ms 1 ms 1 ms

2 testcom (9.123.130.34) 1 ms 1 ms 1 ms

whoselife@/>host 9.123.a.b

testcom is 9.123.a.b

whoselife@/>host 9.123.x.y

whoselife is 9.123.x.y

如果检查到0827-803的错误，需要在服务器和客户机的/etc/hosts加入两边正确的主机名和ip地址。

whoselife@/data>host 9.123.131.147

host: 0827-803 Cannot find address 9.123.131.147.

4。挂载Linux nfs 文件系统到AIX 的目录/data/wuxf

whoselife@/>mount testcom:/nfs /data/wuxf

如果出现下列不能挂载的问题:

whoselife@/>mount testcom:/nfs/ data/wuxf

mount: giving up on：

testcom:/nfs/

vmount: Not owner

需要检查nfso -a：

whoselife@/data>nfso -a | grep nfs_use_reserved_ports

nfs_use_reserved_ports = 0

默认情况,AIX系统执行mount命令请求时并不使用预先定义好的端口，设置nfs_use_reserved_ports后可使用1024以下的预定义端口。

whoselife@/>nfso -o nfs_use_reserved_ports=1

Setting nfs_use_reserved_ports to 1

这样AIX 就可以正确挂载Linux 的nfs 共享文件了。

发现执行nfso -a | grep nfs_use_reserved_ports

nfs_use_reserved_ports = 0

修改后，nfs就可以mount上去了。