目的是备份数据库；又没与多余的硬盘空间，想挂载LINUX下的NFS 来实现
环境：
- linux系统，192.168.8.200用来做备份；
- AIX7.01 192.168.8.250 数据库环境。
操作Linux：
- 检测linxu环境是否安装了NFS；
rpm -ivh nfs4-acl-tools-0.3.3-3.el5.x86_64.rpm rpm -ivh nfs-utils-lib-devel-1.0.8-7.9.el5.x86_64.rpm
2.新建一个文件夹，用过备份：
mkdir /data/dbbak
3.配置/etc/exports
vi /etc/exports #添加以下配置： /data/dbbak/ 192.168.8.250(rw,no_root_squash) #192.168.8.250是AIX服务器IP
4.重启NFS服务
systemctl restart nfs
systemctl restart portmap
#或者使用service nfs restart
#service portmap restart
由于NFS服务是基于portmap服务的，所以我们需要先启动portmap服务：service portmap restart ，然后 service nfs restart 使用showmount 指令看看是否共享成功showmount -e 后面跟你的服务器IP
5.查看mount
[root@Linux ~]# showmount -e 192.168.8.200 Export list for 192.168.8.200:
/data/dbbak 192.168.8.250
#以上显示表示正常
操作AIX：
1. mount文件夹
mount 192.168.8.200:/data/dbbak /dbbak
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。
root@AIX:/# nfso -a | grep nfs_use_reserved_ports nfs_use_reserved_ports = 0
root@AIX:/# nfso -o nfs_use_reserved_ports=1
Setting nfs_use_reserved_ports to 1
root@AIX:/# nfso -a | grep nfs_use_reserved_ports
nfs_use_reserved_ports = 1
mount -v nfs -o rw,bg,hard,rsize=32768,wsize=32768,vers=3,nointr,timeo=600,proto=tcp 192.168.8.200:/data/dbbak /dbbak
#这样AIX 就可以正确挂载Linux 的nfs 共享文件了
2、直接在/etc/filesystems后面有添加如下内容，或者使用smitty nfs：
/dbbak: dev = /data/dbbak vfs = nfs nodename = 192.168.8.200 mount = true options = rw,bg,hard,nointr,rsize=32768,wsize=32768,proto=tcp,vers=3,timeo=600 account = false
测试：
1.使用df -g 查看
Filesystem GB blocks Free %Used Iused %Iused Mounted on /dev/hd4 1.00 0.72 29% 10536 6% / /dev/hd2 10.00 4.76 53% 57667 5% /usr /dev/hd9var 10.00 5.54 45% 6506 1% /var /dev/hd3 20.00 12.85 36% 4619 1% /tmp /dev/fwdump 1.00 1.00 1% 4 1% /var/adm/ras/platform /dev/hd1 10.00 9.97 1% 112 1% /home /dev/hd11admin 0.50 0.50 1% 5 1% /admin /proc - - - - - /proc /dev/hd10opt 2.00 1.64 18% 9805 3% /opt /dev/livedump 0.50 0.50 1% 4 1% /var/adm/ras/livedump /dev/lvusrsap 35.00 17.02 52% 70973 2% /usr/sap /dev/lvsapmnt 20.00 17.19 15% 32989 1% /sapmnt /dev/lvoracle 940.00 410.21 57% 62862 1% /oracle sapecd01:/usr/sap/trans 100.00 84.80 16% 56449 1% /usr/sap/trans 192.168.8.200:/dbbackup/sapbak 2824.17 2578.46 9% 210436 1% /dbbak
# mount node mounted mounted over vfs date options -------- --------------- --------------- ------ ------------ --------------- /dev/hd4 / jfs2 Dec 31 09:05 rw,log=/dev/hd8 /dev/hd2 /usr jfs2 Dec 31 09:05 rw,log=/dev/hd8 /dev/hd9var /var jfs2 Dec 31 09:05 rw,log=/dev/hd8 /dev/hd3 /tmp jfs2 Dec 31 09:05 rw,log=/dev/hd8 /dev/fwdump /var/adm/ras/platform jfs2 Dec 31 09:07 rw,log=/dev/hd8 /dev/hd1 /home jfs2 Dec 31 09:08 rw,log=/dev/hd8 /dev/hd11admin /admin jfs2 Dec 31 09:08 rw,log=/dev/hd8 /proc /proc procfs Dec 31 09:08 rw /dev/hd10opt /opt jfs2 Dec 31 09:08 rw,log=/dev/hd8 /dev/livedump /var/adm/ras/livedump jfs2 Dec 31 09:08 rw,log=/dev/hd8 /dev/lvusrsap /usr/sap jfs2 Dec 31 09:08 rw,log=/dev/loglv00 /dev/lvsapmnt /sapmnt jfs2 Dec 31 09:08 rw,log=/dev/loglv00 /dev/lvoracle /oracle jfs2 Dec 31 09:08 rw,log=/dev/loglv00 sapecd01 /usr/sap/trans /usr/sap/trans nfs3 Dec 31 09:08 bg,hard,intr,sec=sys,rw 192.168.8.200 /data/dbbak /dbbak nfs3 Dec 30 15:55 rw,bg,hard,rsize=32768,wsize=32768,vers=3,nointr,timeo=600,proto=tcp
测试数据库：
oracle@ptdb1:/rmanbak$expdp system/oracle directory=mypump dumpfile=expxiaobi.dmp log=expxiaobi.log schemas=xiaobi Export: Release 11.2.0.3.0 - Production on Wed Aug 6 15:22:03 2014 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP, Data Mining and Real Application Testing options Legacy Mode Active due to the following parameters: Legacy Mode Parameter: "log=expxiaobi.log" Location: Command Line, Replaced with: "logfile=expxiaobi.log" Legacy Mode has set reuse_dumpfiles=true parameter. Starting "SYSTEM"."SYS_EXPORT_SCHEMA_01": system/******** directory=mypump dumpfile=expxiaobi.dmp logfile=expxiaobi.log schemas=xiaobi reuse_dumpfiles=true Estimate in progress using BLOCKS method... Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA Total estimation using BLOCKS method: 30 MB Processing object type SCHEMA_EXPORT/USER Processing object type SCHEMA_EXPORT/SYSTEM_GRANT Processing object type SCHEMA_EXPORT/ROLE_GRANT Processing object type SCHEMA_EXPORT/DEFAULT_ROLE Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA Processing object type SCHEMA_EXPORT/TABLE/TABLE . . exported "XIAOBI"."TEST" 8.253 MB 85644 rows . . exported "XIAOBI"."TEST2" 8.253 MB 85645 rows . . exported "XIAOBI"."TEST3" 8.253 MB 85646 rows Master table "SYSTEM"."SYS_EXPORT_SCHEMA_01" successfully loaded/unloaded ****************************************************************************** Dump file set for SYSTEM.SYS_EXPORT_SCHEMA_01 is: /rmanbak/expxiaobi.dmp Job "SYSTEM"."SYS_EXPORT_SCHEMA_01" successfully completed at 15:23:01
oracle@ptdb1:/rmanbak$impdp system/oracle directory=mypump dumpfile=expxiaobi.dmp log=impxiaobi.log remap_schema=xiaobi:xiahao Import: Release 11.2.0.3.0 - Production on Wed Aug 6 15:28:57 2014 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. Connected to: Oracle Database 11g Enterprise Edition Release 11.2.0.3.0 - 64bit Production With the Partitioning, Real Application Clusters, Automatic Storage Management, OLAP, Data Mining and Real Application Testing options Legacy Mode Active due to the following parameters: Legacy Mode Parameter: "log=impxiaobi.log" Location: Command Line, Replaced with: "logfile=impxiaobi.log" Master table "SYSTEM"."SYS_IMPORT_FULL_01" successfully loaded/unloaded Starting "SYSTEM"."SYS_IMPORT_FULL_01": system/******** directory=mypump dumpfile=expxiaobi.dmp logfile=impxiaobi.log remap_schema=xiaobi:xiahao Processing object type SCHEMA_EXPORT/USER ORA-31684: Object type USER:"XIAHAO" already exists Processing object type SCHEMA_EXPORT/SYSTEM_GRANT Processing object type SCHEMA_EXPORT/ROLE_GRANT Processing object type SCHEMA_EXPORT/DEFAULT_ROLE Processing object type SCHEMA_EXPORT/PRE_SCHEMA/PROCACT_SCHEMA Processing object type SCHEMA_EXPORT/TABLE/TABLE Processing object type SCHEMA_EXPORT/TABLE/TABLE_DATA . . imported "XIAHAO"."TEST" 8.253 MB 85644 rows . . imported "XIAHAO"."TEST2" 8.253 MB 85645 rows . . imported "XIAHAO"."TEST3" 8.253 MB 85646 rows Job "SYSTEM"."SYS_IMPORT_FULL_01" completed with 1 error(s) at 15:29:09 oracle@ptdb1:/rmanbak$ oracle@ptdb1:/rmanbak$exit
15:29:26 sys@PORTALDB> conn xiahao/xiahao123
Connected.
15:29:34 xiahao@PORTALDB> select * from tab;
TNAME TABTYPE CLUSTERID
------------------------------ ------- ----------
TEST TABLE
TEST2 TABLE
TEST3 TABLE
使用RMAN测试 也是正常的；
RMAN> backup tablespace xiahao format '/rmanbak/%U';
Starting backup at 06-AUG-14
using channel ORA_DISK_1
channel ORA_DISK_1: starting full datafile backup set
channel ORA_DISK_1: specifying datafile(s) in backup set
input datafile file number=00006 name=+ORADATA/portaldb/datafile/xiahao.283.834596721
input datafile file number=00007 name=+ORADATA/portaldb/datafile/xiahao.284.834596877
channel ORA_DISK_1: starting piece 1 at 06-AUG-14
channel ORA_DISK_1: finished piece 1 at 06-AUG-14
piece handle=/rmanbak/0jpf9ctb_1_1 tag=TAG20140806T153259 comment=NONE
channel ORA_DISK_1: backup set complete, elapsed time: 00:00:01
Finished backup at 06-AUG-14
Starting Control File and SPFILE Autobackup at 06-AUG-14
piece handle=/oracle/product/11.2.0/dbs/c-663718102-20140806-00 comment=NONE
Finished Control File and SPFILE Autobackup at 06-AUG-14