数据库环境：
数据库版本（ru）： 19.10
grid_home: /u01/app/19.0.0/grid oracle_home: /u01/app/oracle/product/19.0.0/db_1 db_name: orcl
1.创建adump目录（每个节点执行）
mkdir -p /u01/app/oracle/admin/orcl/adump
2.修改$oracle_home/bin/oracle文件权限（每个节点执行）
/u01/app/19.0.0/grid/bin/setasmgidwrap o=/u01/app/oracle/product/19.0.0/db_1/bin/oracle
3.创建密码文件，添加数据库到集群资源中
/u01/app/oracle/product/19.0.0/db_1/bin/srvctl add database -d orcl -pwfile +dg_data/orcl/orapworcl -o \ /u01/app/oracle/product/19.0.0/db_1 -n orcl -a "dg_data" (此处与上面为同一行) /u01/app/oracle/product/19.0.0/db_1/bin/srvctl add instance -d orcl -i orcl1 -n ora19c-rac1 /u01/app/oracle/product/19.0.0/db_1/bin/srvctl add instance -d orcl -i orcl2 -n ora19c-rac2 /u01/app/oracle/product/19.0.0/db_1/bin/srvctl disable database -d orcl /u01/app/oracle/product/19.0.0/db_1/bin/orapwd file=+dg_data/orcl/orapworcl force=y format=12 dbuniquename=orcl password=oracle321#
4.编辑临时初始化参数文件init.ora(根据实际需要添加需要调整的参数)
vi /home/oracle/init.ora
db_block_size=8192
open_cursors=300
db_name="orcl"
control_files=("+dg_data/orcl/control01.ctl", "+dg_data/orcl/control02.ctl")
compatible=19.0.0
diagnostic_dest=/u01/app/oracle
nls_language="american"
nls_territory="america"
processes=500
sga_target=1398m
audit_file_dest="/u01/app/oracle/admin/orcl/adump"
audit_trail=db
remote_login_passwordfile=exclusive
pga_aggregate_target=467m
undo_tablespace=undotbs1
family:dw_helper.instance_mode=read-only
orcl1.instance_number=1
orcl2.instance_number=2
orcl1.thread=1
orcl2.thread=2
orcl1.undo_tablespace=undotbs1
orcl2.undo_tablespace=undotbs2
5.启动实例到nomount状态，创建数据库（根据实际需要设置文件大小，和日志组数量与大小）
sqlplus / as sysdba
startup nomount pfile="/home/oracle/init.ora";
create database "orcl"
maxinstances 32
maxloghistory 1
maxlogfiles 192
maxlogmembers 3
maxdatafiles 1024
datafile '+dg_data/orcl/system01.dbf' size 700m reuse autoextend on next 10240k maxsize unlimited
extent management local
sysaux datafile '+dg_data/orcl/sysaux01.dbf' size 550m reuse autoextend on next 10240k maxsize unlimited
smallfile default temporary tablespace temp tempfile '+dg_data/orcl/temp01.dbf' size 20m reuse autoextend on next 640k maxsize unlimited
smallfile undo tablespace "undotbs1" datafile '+dg_data/orcl/undotbs01.dbf' size 200m reuse autoextend on next 5120k maxsize unlimited
character set al32utf8
national character set al16utf16
logfile group 1 ('+dg_data/orcl/redo01.log') size 300m,
group 2 ('+dg_data/orcl/redo02.log') size 300m
user sys identified by "oracle321#" user system identified by "oracle321#";
6.创建undotbs2和users表空间，并设置users表空间为数据库默认表空间
create smallfile undo tablespace "undotbs2" datafile '+dg_data/orcl/undotbs02.dbf' size 200m reuse autoextend on next 5120k maxsize unlimited; create smallfile tablespace "users" logging datafile '+dg_data/orcl/users01.dbf' size 5m reuse autoextend on next 1280k maxsize unlimited extent management local segment space management auto; alter database default tablespace "users";
7.创建数据字典 vi createcatalog.sql
set echo on spool /home/oracle/createdbcatalog.log append @/u01/app/oracle/product/19.0.0/db_1/rdbms/admin/catalog.sql; @/u01/app/oracle/product/19.0.0/db_1/rdbms/admin/catproc.sql; @/u01/app/oracle/product/19.0.0/db_1/rdbms/admin/catoctk.sql; @/u01/app/oracle/product/19.0.0/db_1/rdbms/admin/owminst.plb; connect "system"/"oracle321#" @/u01/app/oracle/product/19.0.0/db_1/sqlplus/admin/pupbld.sql; connect "sys"/"oracle321#" as sysdba @/u01/app/oracle/product/19.0.0/db_1/sqlplus/admin/pupdel.sql; connect "system"/"oracle321#" spool off set echo on spool /home/oracle/sqlplushelp.log append @/u01/app/oracle/product/19.0.0/db_1/sqlplus/admin/help/hlpbld.sql helpus.sql; spool off @createcatalog.sql
8.创建cluster数据字典
set echo on spool /home/oracle/createclustdbviews.log append @/u01/app/oracle/product/19.0.0/db_1/rdbms/admin/catclust.sql; spool off
9.执行datapatch ，添加thread 2日志组并启用thread 2 （根据实际需要设置日志组数量与大小）
set verify off
spool /home/oracle/postdbcreation.log append
host /u01/app/oracle/product/19.0.0/db_1/opatch/datapatch -skip_upgrade_check
alter database add logfile thread 2 group 3 ('+dg_data/orcl/redo03.log') size 300m, group 4 ('+dg_data/orcl/redo04.log') size 300m;
alter database enable public thread 2;
host echo cluster_database=true >>/home/oracle/init.ora;
connect "sys"/"oracle321#" as sysdba
set echo on
create spfile='+dg_data/orcl/spfileorcl.ora' from pfile='/home/oracle/init.ora';
connect "sys"/"oracle321#" as sysdba
select 'utlrp_begin: ' || to_char(sysdate, 'hh:mi:ss') from dual;
@/u01/app/oracle/product/19.0.0/db_1/rdbms/admin/utlrp.sql;
select 'utlrp_end: ' || to_char(sysdate, 'hh:mi:ss') from dual;
select comp_id, status from dba_registry;
shutdown immediate;
host /u01/app/oracle/product/19.0.0/db_1/bin/srvctl enable database -d orcl;
host /u01/app/oracle/product/19.0.0/db_1/bin/srvctl start database -d orcl;
spool off
exit;
10.添加数据库实例信息到/etc/oratab文件中
vi /etc/oratab orcl1:/u01/app/oracle/product/19.0.0/db_1:n ##节点1添加 orcl2:/u01/app/oracle/product/19.0.0/db_1:n ##节点2添加
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