NFS配置及Linux和AIX系统如何挂载nfs后用数据泵导数.txt

张海

云和恩墨

812

4页

7次

2021-09-07

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NFS 网络文件系统:

网络文件系统（network files system）简称 NFS 是一种基于 TCP 传输协议的文件共享习通。

NFS 的 CS 体系中的服务端启用协议将文件共享到网络上，然后允许本地 NFS 客户端通过网络挂载服务端共享

的文件。

权限用途

ro 只读

rw 读写访问

sync 客户端写入数据同步到服务器后才会返回

no_root_squash 客户端 root 用户具有完全的权限

root_squash root 用户权限被映射成服务端上的普通用户 nobody

anonuid 指定匿名用户的 UID

anongid 指定匿名用户的 GID

NFS 配置

1.服务端：

--检查 nfs 服务

rpm -qa|grep nfs

rpm -qa|grep rpcbind

[root@sjzzapp01 ~]# rpm -qa|grep nfs

nfs-utils-1.2.3-39.el6.x86_64

nfs4-acl-tools-0.3.3-6.el6.x86_64

nfs-utils-lib-1.1.5-6.el6.x86_64

[root@sjzzapp01 ~]# rpm -qa|grep rpcbind

rpcbind-0.2.0-11.el6.x86_64

--安装 nfs

yum -y install nfs-utils rpcbind

--启动服务

service rpcbind start

service nfs start

[root@sjzzapp01 ~]# service rpcbind status

rpcbind (pid 70459) is running...

[root@sjzzapp01 ~]# service nfs status

rpc.svcgssd is stopped

rpc.mountd (pid 70560) is running...

nfsd (pid 70575 70574 70573 70572 70571 70570 70569 70568) is running...

rpc.rquotad (pid 70556) is running...

--设置开机自启动服务

chkconfig nfs on

chkconfig rpcbind on

--创建共享目录

mkdir /share

chmod -R 777 /share

--配置 exports 文件

vi /etc/exports

加入：

/share *(rw,sync,no_root_squash)

--刷新配置文件生效

exportfs -a

--查看 mount 目录

可用 showmount -e 服务端 ip 来查看可 mount 目录

[root@testdb01 /]#showmount -e 10.1.1.1

export list for 10.1.1.1:

/share (everyone)

2.客户端

--创建共享目录

mkdir /mydump1

--挂载目录

LINUX:

mount -t nfs 10.1.1.1:/share /mydump1

AIX:

mount -V nfs 10.1.1.1:/share /mydump1

挂载不上，显示以下信息

[root@testdb01 /]#mount -V nfs 10.1.1.1:/share /mydump1

mount: 1831-010 server 10.1.1.1 not responding: RPC: 1832-008 Timed out

nfsmnthelp: 1831-019 10.1.1.1: A remote host did not respond within the timeout

period.

mount: retrying

10.1.1.1:/share

nfsmnthelp: 1831-019 10.1.1.1: A remote host did not respond within the timeout

period.

查询相关报错解决办法，可修改参数 nfs_use_reserved_ports 后挂载

nfso -p -o nfs_use_reserved_ports=1

mount 10.1.1.1:/share /mydump1

还是挂载不上

[root@testdb01 /]#nfso -p -o nfs_use_reserved_ports=1

[root@testdb01 /]#mount 10.1.1.1:/share /mydump1

mount: 1831-010 server 10.1.1.1 not responding: RPC: 1832-008 Timed out

nfsmnthelp: 1831-019 10.1.1.1: A remote host did not respond within the timeout

period.

mount: retrying

10.1.1.1:/share

查询中有提到添加 hosts 文件的

在服务端/etc/hosts 文件中添加客户端的 ip 及 hostname

[root@sjzzapp01 ~]# vi /etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

10.1.1.1 sjzzapp01-pps sjzzapp01-pps

10.6.140.131 testdb01

再挂载 mount -V nfs 10.1.1.1:/share /mydump1

[root@testdb01 /]#mount -V nfs 10.1.1.1:/share /mydump1

[root@testdb01 /]#df -g

10.1.1.1:/share 2015.86 1653.20 18% 14899 1% /mydump1

3.expdp 数据导出

--导数目录创建及授权

create or replace directory dmp_dir as '/mydump1/dumpdir/teabsdb1';

grant read,write on directory dmp_dir to public;

--导数

expdp \' / as sysdba \' directory=dmp_dir dumpfile=teabsdb_20210621_%U.dump

logfile=teabsdb_20210621_exp.log COMPRESSION=all exclude=statistics PARALLEL=8

full=y cluster=no

导数任务报错

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit

可用 showmount -e 服务端 ip 来查看可 mount 目录

[root@testdb01 /]#showmount -e 10.1.1.1

export list for 10.1.1.1:

/share (everyone)

2.客户端

--创建共享目录

mkdir /mydump1

--挂载目录

LINUX:

mount -t nfs 10.1.1.1:/share /mydump1

AIX:

mount -V nfs 10.1.1.1:/share /mydump1

挂载不上，显示以下信息

[root@testdb01 /]#mount -V nfs 10.1.1.1:/share /mydump1

mount: 1831-010 server 10.1.1.1 not responding: RPC: 1832-008 Timed out

nfsmnthelp: 1831-019 10.1.1.1: A remote host did not respond within the timeout

period.

mount: retrying

10.1.1.1:/share

nfsmnthelp: 1831-019 10.1.1.1: A remote host did not respond within the timeout

period.

查询相关报错解决办法，可修改参数 nfs_use_reserved_ports 后挂载

nfso -p -o nfs_use_reserved_ports=1

mount 10.1.1.1:/share /mydump1

还是挂载不上

[root@testdb01 /]#nfso -p -o nfs_use_reserved_ports=1

[root@testdb01 /]#mount 10.1.1.1:/share /mydump1

mount: 1831-010 server 10.1.1.1 not responding: RPC: 1832-008 Timed out

nfsmnthelp: 1831-019 10.1.1.1: A remote host did not respond within the timeout

period.

mount: retrying

10.1.1.1:/share

查询中有提到添加 hosts 文件的

在服务端/etc/hosts 文件中添加客户端的 ip 及 hostname

[root@sjzzapp01 ~]# vi /etc/hosts

127.0.0.1 localhost localhost.localdomain localhost4 localhost4.localdomain4

::1 localhost localhost.localdomain localhost6 localhost6.localdomain6

10.1.1.1 sjzzapp01-pps sjzzapp01-pps

10.6.140.131 testdb01

再挂载 mount -V nfs 10.1.1.1:/share /mydump1

[root@testdb01 /]#mount -V nfs 10.1.1.1:/share /mydump1

[root@testdb01 /]#df -g

10.1.1.1:/share 2015.86 1653.20 18% 14899 1% /mydump1

3.expdp 数据导出

--导数目录创建及授权

create or replace directory dmp_dir as '/mydump1/dumpdir/teabsdb1';

grant read,write on directory dmp_dir to public;

--导数

expdp \' / as sysdba \' directory=dmp_dir dumpfile=teabsdb_20210621_%U.dump

logfile=teabsdb_20210621_exp.log COMPRESSION=all exclude=statistics PARALLEL=8

full=y cluster=no

导数任务报错

Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit

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