AIX上如何正确挂载Linux 的nfs共享目录

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：
-e testcom
*:/nfs
如果AIX上portmap 没有启动，运行showmount -e会出现如下报错：
-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：
-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.
-s portmap
0513-044 The portmap Subsystem was requested to stop.
-s portmap
0513-059 The portmap Subsystem has been started. Subsystem PID is 954432.
-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.
-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。
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
9.123.a.b
testcom is 9.123.a.b
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。
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
testcom:/nfs /data/wuxf
如果出现下列不能挂载的问题:
testcom:/nfs/ data/wuxf
mount: giving up on：
testcom:/nfs/
vmount: Not owner
需要检查nfso -a：
-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。
-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
AIX5.3 Linux

问题描述

mount linux nfs 服务器时,报错如下:
nfsmnthelp: invalid option insecure ignored
mount: 1831-011 access denied for 10.1.1.74:/tpdata/test
mount: 1831-008 giving up on:
10.1.1.74:/tpdata/test
The file access permissions do not allow the specified action.

解答

1.检查域名解析,一切正常
2.在linux服务器上执行:showmount -e,结果如下:
[root@rigelrh ~]# more /etc/exports
/natsys_net/ *(sync,no_root_squash,rw)
/natsys_net/products_rigelrh *(sync,no_root_squash,rw)
/natsys_net/archives_rigelrh *(sync,no_root_squash,rw)
/natsys_net/archives_rigelrh/cvs *(sync,no_root_squash,rw)
#/natsys_net/backup *(sync,no_root_squash,rw)
/natsys_net/backup/WCS_rigelrh *(sync,no_root_squash,rw)
/natsys_net/archives_rigelrh/admin *(sync,no_root_squash,rw)
/natsys_net/archives_rigelrh/integ *(sync,no_root_squash,rw
3.nfso -a|grep port 返回结果
portcheck = 0
nfs_use_reserved_ports = 0

4.执行命令:nfso -o nfs_use_reserved_ports=1
问题解决,mount成功.
默认情况,AIX系统执行mount命令请求时并不通过预先定义好的端口.即用nfso -a查询出的
nfs_use_reserved_ports = 0.
要解决此类问题,可以在Linux exports文件中做如下修改:
/natsys_net/archives_rigelrh *(sync,insecure,no_root_squash,rw)
或者可以在每个AIX 客户端做如下修改:
nfso -o nfs_use_reserved_ports=1
相关补丁:IY81908: TRAILING COLON CAN ALLOW HOSTS UNRESTRICTED ACCESS TO NFS