步骤一：迁移原数据库相关文件：

1、将数据库实例库文件放置到新服务器的对应位置上：

scp -r data/ root@172.0.128.72:/

2、将该实例的spfile文件放置到新服务器的对应位置上：

scp /opt/oracle/product/19c/dbhome_1/dbs/spfileorcl1.ora root@172.0.127.72:/opt/oracle/product/19c/dbhome_1/dbs/

3、将该实例的adump文件放置到新服务器的对应位置上：

scp -r /opt/oracle/admin/orcl1 root@172.0.128.72:/opt/oracle/admin/

步骤二：在新服务器对相关文件赋权限

chown -R oracle /data
chown -R oracle /opt/oracle/product/19c/dbhome_1/dbs/spfileorcl1.ora
chown -R oracle /opt/oracle/admin/orcl1

步骤三：启动数据库

[root@s72 2022-12-21 11:46:59 ~]# su - oracle
Last login: Wed Dec 21 10:17:37 CST 2022 on pts/0
[oracle@s72 ~]$ export ORACLE_SID=orcl1
[oracle@s72 ~]$ sqlplus / as sysdba
SQL*Plus: Release 19.0.0.0.0 - Production on Wed Dec 21 11:47:15 2022
Version 19.3.0.0.0
Copyright (c) 1982, 2019, Oracle. All rights reserved.
Connected to an idle instance.
SQL> startup;
ORACLE instance started.
Total System Global Area 2.0133E+10 bytes
Fixed Size 19769056 bytes
Variable Size 2885681152 bytes
Database Buffers 1.7180E+10 bytes
Redo Buffers 47337472 bytes
Database mounted.
Database opened.