AIX上如何正确挂载Linux 的nfs共享目录分享篇

AIX 5.3 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