Centos7.9配置nfs共享及rsync同步

客户需求对oracle数据库做一个跨机房的备份，原环境已做rman备份和每天expdp全库导出，远端只有虚拟化环境，可提供一个虚拟机，2个机房间网络互通。

首先配置nfs服务端

查看操作系统版本

$root@nas199 \~$ # more /etc/redhat-release

CentOS Linux release 7.9.2009 (Core)

yum包

$root@nas199 \~$ # yum -y install nfs-server portmap showmount

把NFS设为开机自启：

$root@nas199 \~$ # systemctl enable nfs && systemctl start nfs

将RPC设为开机自启：

$root@nas199 \~$ # systemctl enable rpcbind && systemctl start rpcbind

关闭防火墙

$root@nas199 \~$ # systemctl stop firewalld && systemctl disable firewalld

查看数据库的oracle用户id和组id

$root@db1 \~$ # id oracle

uid=54321(oracle) gid=54321(oinstall) groups=54321(oinstall),54322(dba),54323(oper),54327(asmdba),54329(asmadmin)

编辑/etc/exports，如下所示

$root@nas199 \~$ # cat /etc/exports

/backup/ 172.100.18.196(rw,sync,no_root_squash,anonuid=54321,anongid=54321)

/backup/ 122.100.18.197(rw,sync,no_root_squash,anonuid=54321,anongid=54321)

修改/etc/exports后重新加载

$root@nas199 \~$ # exportfs -rv

exporting 172.100.18.196:/backup

exporting 172.100.18.197:/backup

$root@nas199 \~$ #

在db1上操作

$root@db1 \~$ # showmount -e 172.100.18.199

Export list for 172.100.18.199:

/backup 172.100.18.197,172.100.18.196

$root@db1 \~$ # mkdir /nasbackup

$root@db1 \~$ # mount 172.100.18.199:/backup /nasbackup

$root@db1 \~$ # chown -R oracle:oinstall /nasbackup

$root@db1 \~$ # chmod -R 775 /nasbackup

$root@db1 \~$ # df -ht nfs4

Filesystem Size Used Avail Use% Mounted on

nasserver:/backup 11T 815G 11T 8% /nasbackup

$root@db1 \~$ #

orcl1:/home/oracle@db1> crontab -l

10 02 * * * /home/oracle/copy_to_nasbackup.sh &

orcl1:/home/oracle@db1> cat /home/oracle/copy_to_nasbackup.sh

#!/bin/bash

rsync -vzurtopg --progress /backup/orcl /nasbackup

/bin/find /nasbackup/orcl/rmanbackup/ -type f -name "rman_*" -mtime +60 -exec rm {} \;

/bin/find /nasbackup/orcl/logicbacup/ -type f -name "orcl_*" -mtime +60 -exec rm {} \;