首先命令行远程登录到VCSA服务器，然后执行如下命令停掉VCSA的核心服务vmware-vpxd：
- vCenterServerAppliance:~ # service vmware-vpxd stop
Stopping VMware vSphere Profile-Driven Storage Service...
Stopped VMware vSphere Profile-Driven Storage Service.( o0 w8 T3 k: R
Stopping tomcat: success) {# T- u$ ^( \4 l; F" i. [
Stopping vmware-vpxd: success
Shutting down ldap-server..done
2、接着，执行如下命令来到postgresql的bin目录：
#cd /opt/vmware/vpostgres/1.0/bin
3、执行cat命令查看DB的配置讯息：
vCenterServerAppliance:/opt/vmware/vpostgres/1.0/bin # cat /etc/vmware-vpx/embedded_db.cfg
EMB_DB_INSTALL_DIR='/opt/vmware/vpostgres/9.0'
EMB_DB_TYPE='PostgreSQL'
EMB_DB_SERVER='127.0.0.1'
EMB_DB_PORT='5432'
EMB_DB_INSTANCE='VCDB'
EMB_DB_USER='vc'
EMB_DB_PASSWORD='7Uz($Q4tY6'
EMB_DB_STORAGE='/storage/db/vpostgres'
4、记录下第3步中的用户和密码，然后执行如下命令，开始备份：
vCenterServerAppliance:/opt/vmware/vpostgres/1.0/bin # ./pg_dump VCDB -U vc -Fp -c > /tmp/VCDBbackup
5、完成备份后，即可重新启动服务
#service vmware-vpxd start