centos 6.6

--操作系统版本

[root@centos102 ~]# cat /etc/issue
CentOS release 6.6 (Final)
Kernel \r on an \m

--验证nfs是否安装，

若没有则安装nfs包

#yum install nfs-utils

[root@centos102 ~]# rpm -qa | grep nfs
nfs4-acl-tools-0.3.3-6.el6.x86_64
nfs-utils-lib-1.1.5-9.el6.x86_64
nfs-utils-1.2.3-54.el6.x86_64

--配置网络共享目录
[root@centos102 ~]# cat /etc/exports
[root@centos102 ~]# mkdir -p /mnt/nfs
[root@centos102 ~]# cat /etc/exports

/mnt/nfs 10.1.1.102(rw,no_root_squash,insecure)

[root@centos102 ~]# exportfs
/mnt/nfs 10.1.1.102

--服务器端开启NFS和portmap服务

[root@centos102 ~]# service portmap start --在centos6.5中portmap已经改为rpcbind
portmap: unrecognized service
[root@centos102 ~]# service nfs start
Starting NFS services: [ OK ]
Starting NFS quotas: [ OK ]
Starting NFS mountd: [ OK ]
Starting NFS daemon: [ OK ]
Starting RPC idmapd: [ OK ]
[root@centos102 ~]# service rpcbind start
[root@centos102 ~]# service rpcbind status
rpcbind (pid 1179) is running...

--oracle database客户端，启动portmap服务，使用mount将nfs服务端的共享目录挂载到本地。

用mount –t nfs 192.168.123:/home/nfs-share /home/remote_file挂载服务器端的共享目录到本地的/home/remote-file挂载点，

[root@centos102 ~]# mkdir -p /local/nfs
[root@centos102 ~]# mount -t nfs 10.1.1.102:/mnt/nfs/ /local/nfs/
[root@centos102 ~]# df -h
Filesystem Size Used Avail Use% Mounted on
/dev/mapper/vg_centos102-lv_root
150G 65G 78G 46% /
/dev/sda1 477M 59M 393M 13% /boot
tmpfs 5.0G 0 5.0G 0% /dev/shm
10.1.1.102:/mnt/nfs/ 150G 65G 78G 46% /local/nfs

--nfs测试：

[root@centos102 ~]# cd /local/nfs/
[root@centos102 nfs]# lll
-bash: lll: command not found
[root@centos102 nfs]# ll
total 0
[root@centos102 nfs]# vi aa

2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga2145 qaga

"aa" [New] 1L, 199C written
[root@centos102 nfs]# ll
total 4
-rw-r--r-- 1 root root 199 Aug 11 11:08 aa
[root@centos102 nfs]# pwd
/local/nfs
[root@centos102 nfs]# ls -l /mnt/nfs/
total 4
-rw-r--r-- 1 root root 199 Aug 11 11:08 aa

--配置NFS CLIENT数据库支持Direct NFS

oracle用户编辑$ORACLE_HOME/dbs/oranfstab文件，内容如下
[oracle@centos102 ~]$ cat /user_app/oracle/product/oracle_db/v11r2p3/db1/dbs/oranfstab
server:centos102
path:10.1.1.102
export:/mnt/nfs
mount:/local/nfs

修改libodm11.so库文件的链接对象
[oracle@centos102 lib]$ ll | grep odm11
-rw-r--r-- 1 oracle oinstall 60431 Sep 17 2011 libnfsodm11.so
-rw-r--r-- 1 oracle oinstall 7370 Sep 17 2011 libodm11.a
lrwxrwxrwx 1 oracle oinstall 12 Mar 26 14:16 libodm11.so -> libodmd11.so
[oracle@centos102 lib]$ mv libodm11.so libodm11.so.bak
[oracle@centos102 lib]$ ll | grep odm11
-rw-r--r-- 1 oracle oinstall 60431 Sep 17 2011 libnfsodm11.so
-rw-r--r-- 1 oracle oinstall 7370 Sep 17 2011 libodm11.a
lrwxrwxrwx 1 oracle oinstall 12 Mar 26 14:16 libodm11.so.bak -> libodmd11.so
[oracle@centos102 lib]$ ln -s libnfsodm11.so libodm11.so
[oracle@centos102 lib]$ ll | grep odm11
-rw-r--r-- 1 oracle oinstall 60431 Sep 17 2011 libnfsodm11.so
-rw-r--r-- 1 oracle oinstall 7370 Sep 17 2011 libodm11.a
lrwxrwxrwx 1 oracle oinstall 14 Aug 11 11:16 libodm11.so -> libnfsodm11.so
lrwxrwxrwx 1 oracle oinstall 12 Mar 26 14:16 libodm11.so.bak -> libodmd11.so

--测试：

SQL> startup force

ORACLE instance started.

SQL> create tablespace tb1 datafile '/local/nfs/tb01.dbf' size 10M;

create tablespace tb1 datafile '/local/nfs/tb01.dbf' size 10M

*

ERROR at line 1:

ORA-01119: error in creating database file '/local/nfs/tb01.dbf'

ORA-17502: ksfdcre:4 Failed to create file /local/nfs/tb01.dbf

ORA-17500: ODM err:Permission denied

注意：这里的报错是由于路径权限的问题

[root@centos102 nfs]# chown -R oracle:oinstall /local/nfs

[root@centos102 nfs]# chown -R oracle:oinstall /mnt/nfs/

SQL> create tablespace tb1 datafile '/local/nfs/tb01.dbf' size 10M;

Tablespace created.

SQL> col filename for a50

SQL> select * from v$dnfs_files;

FILENAME FILESIZE PNUM SVR_ID

-------------------------------------------------- ---------- ---------- ----------

/local/nfs/tb01.dbf 10493952 10 1

alert日志信息：

Tue Aug 11 11:23:26 2015

Starting background process SMCO

Tue Aug 11 11:23:26 2015

SMCO started with pid=28, OS id=5663

Tue Aug 11 11:23:37 2015

create tablespace tb1 datafile '/local/nfs/tb01.dbf' size 10M

Tue Aug 11 11:24:33 2015

Direct NFS: channel id [0] path [10.1.1.102] to filer [10.1.1.102] via local [] is UP

Direct NFS: channel id [1] path [10.1.1.102] to filer [10.1.1.102] via local [] is UP

Tue Aug 11 11:24:34 2015

Completed: create tablespace tb1 datafile '/local/nfs/tb01.dbf' size 10M

SQL> select * from v$dnfs_servers;

ID SVRNAME DIRNAME MNTPORT NFSPORT WTMAX RTMAX

---------- ------------------------------ ------------------------------ ---------- ---------- ---------- ----------

1 10.1.1.102 /mnt/nfs/ 55831 2049 1048576 1048576

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