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這篇文章將為大家詳細(xì)講解有關(guān)如何理解 Oracle 12c CDB 的 ADG，文章內(nèi)容質(zhì)量較高，因此丸趣 TV 小編分享給大家做個(gè)參考，希望大家閱讀完這篇文章后對(duì)相關(guān)知識(shí)有一定的了解。
實(shí)驗(yàn)環(huán)境
OS：oracle linux 6.6
DB：oracle 12.1.0.1
主庫(kù)：chicago, pdb1, pdb2
備庫(kù)：boston, pdb1, pdb2
主庫(kù)操作
0. 確認(rèn) tnsping 可以在主庫(kù)與備庫(kù)之間相符訪問(wèn)。如果能 ping 通，但是 tnsping 不通很有可能是防火墻沒有關(guān)閉
[root@snow ~]# service iptables stop
1. 主庫(kù)數(shù)據(jù)庫(kù)文件、控制文件、日志文件的規(guī)劃
[oracle@snow ~]$ sqlplus / as sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Fri May 1 17:47:28 2015
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 – 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options
SYS@chicago show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
———- —————————— ———- ———-
2 PDB$SEED READ ONLY NO
3 PDB1 READ WRITE NO
SYS@chicago
select name from v$datafile
union
select name from v$controlfile
union
select member from v$logfile
union
select name from v$tempfile
union
select value from v$parameter where name= spfile
NAME
——————————————————————————–
/home/oracle/dbfile/chicago/control01.ctl
/home/oracle/dbfile/chicago/control02.ctl
/home/oracle/dbfile/chicago/pdb1/SAMPLE_SCHEMA_users01.dbf
/home/oracle/dbfile/chicago/pdb1/example01.dbf
/home/oracle/dbfile/chicago/pdb1/pdb1_temp01.dbf
/home/oracle/dbfile/chicago/pdb1/sysaux01.dbf
/home/oracle/dbfile/chicago/pdb1/system01.dbf
/home/oracle/dbfile/chicago/pdbseed/pdbseed_temp01.dbf
/home/oracle/dbfile/chicago/pdbseed/sysaux01.dbf
/home/oracle/dbfile/chicago/pdbseed/system01.dbf
/home/oracle/dbfile/chicago/redo01.log
NAME
——————————————————————————–
/home/oracle/dbfile/chicago/redo02.log
/home/oracle/dbfile/chicago/redo03.log
/home/oracle/dbfile/chicago/sysaux01.dbf
/home/oracle/dbfile/chicago/system01.dbf
/home/oracle/dbfile/chicago/temp01.dbf
/home/oracle/dbfile/chicago/undotbs01.dbf
/home/oracle/dbfile/chicago/users01.dbf
/u01/app/oracle/product/12.1.0.1/db_1/dbs/spfilechicago.ora
19 rows selected.
2. 主庫(kù)現(xiàn)有 3 組 redo，為此創(chuàng)建 4 組 standby logfile group
SYS@chicago select group#,bytes/1024/1024 from v$log;
GROUP# BYTES/1024/1024
———- —————
1 50
2 50
3 50
SYS@chicago
alter database add standby logfile group 4 (/home/oracle/dbfile/chicago/redo04.log) size 50m;
alter database add standby logfile group 5 (/home/oracle/dbfile/chicago/redo05.log) size 50m;
alter database add standby logfile group 6 (/home/oracle/dbfile/chicago/redo06.log) size 50m;
alter database add standby logfile group 7 (/home/oracle/dbfile/chicago/redo07.log) size 50m;
3. 主庫(kù)設(shè)置 foece logging
SYS@chicago alter database force logging;
SYS@chicago shutdown immediate;
4. 主庫(kù)創(chuàng)建 pfile
SYS@chicago create pfile from spfile;
SYS@chicago exit
5. 向主庫(kù)的 pfile 添加內(nèi)容
[oracle@snow ~]$ cd $ORACLE_HOME/dbs
[oracle@snow dbs]$ vi initchicago.ora
*.audit_file_dest= /u01/app/oracle/admin/chicago/adump
*.audit_trail= db
*.compatible= 12.1.0.0.0
*.control_files= /home/oracle/dbfile/chicago/control01.ctl , /home/oracle/dbfile/chicago/control02.ctl
*.db_block_size=8192
*.db_domain=
*.db_name= chicago
*.diagnostic_dest= /u01/app/oracle
*.dispatchers= (PROTOCOL=TCP) (SERVICE=chicagoXDB)
*.log_archive_dest_1= LOCATION=/home/oracle/arch
*.log_archive_format= %t_%s_%r.arc
*.memory_target=1440m
*.open_cursors=300
*.processes=300
*.remote_login_passwordfile= EXCLUSIVE
*.undo_tablespace= UNDOTBS1
#for ADG
DB_UNIQUE_NAME=chicago
LOG_ARCHIVE_CONFIG= DG_CONFIG=(chicago,boston)
LOG_ARCHIVE_DEST_1=
LOCATION=/home/oracle/arch
VALID_FOR=(ALL_LOGFILES,ALL_ROLES)
DB_UNIQUE_NAME=chicago
LOG_ARCHIVE_DEST_2=
SERVICE=boston ASYNC
VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)
DB_UNIQUE_NAME=boston
LOG_ARCHIVE_DEST_STATE_1=ENABLE
LOG_ARCHIVE_DEST_STATE_2=ENABLE
REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE
LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
FAL_SERVER=boston
FAL_CLIENT=chicago
DB_FILE_NAME_CONVERT= boston , chicago
LOG_FILE_NAME_CONVERT= boston , chicago
STANDBY_FILE_MANAGEMENT=AUTO
6. 復(fù)制主庫(kù)的 pfile 文件，修改為備庫(kù)的 pfile
[oracle@snow dbs]$ cp initchicago.ora initboston.ora
[oracle@snow dbs]$ vi initboston.ora
*.audit_file_dest= /u01/app/oracle/admin/boston/adump
*.audit_trail= db
*.compatible= 12.1.0.0.0
*.control_files= /home/oracle/dbfile/boston/control01.ctl , /home/oracle/dbfile/boston/control02.ctl
*.db_block_size=8192
*.db_domain=
*.db_name= chicago
*.diagnostic_dest= /u01/app/oracle
*.dispatchers= (PROTOCOL=TCP) (SERVICE=chicagoXDB)
*.log_archive_dest_1= LOCATION=/home/oracle/arch
*.log_archive_format= %t_%s_%r.arc
*.memory_target=1440m
*.open_cursors=300
*.processes=300
*.remote_login_passwordfile= EXCLUSIVE
*.undo_tablespace= UNDOTBS1
#for ADG
DB_UNIQUE_NAME=boston
LOG_ARCHIVE_CONFIG= DG_CONFIG=(boston,chicago)
LOG_ARCHIVE_DEST_1=
LOCATION=/home/oracle/arch
VALID_FOR=(ALL_LOGFILES,ALL_ROLES)
DB_UNIQUE_NAME=boston
LOG_ARCHIVE_DEST_2=
SERVICE=boston ASYNC
VALID_FOR=(ONLINE_LOGFILES,PRIMARY_ROLE)
DB_UNIQUE_NAME=chicago
LOG_ARCHIVE_DEST_STATE_1=ENABLE
LOG_ARCHIVE_DEST_STATE_2=ENABLE
REMOTE_LOGIN_PASSWORDFILE=EXCLUSIVE
LOG_ARCHIVE_FORMAT=%t_%s_%r.arc
FAL_SERVER=chicago
FAL_CLIENT=boston
DB_FILE_NAME_CONVERT= chicago , boston
LOG_FILE_NAME_CONVERT= chicago , boston
STANDBY_FILE_MANAGEMENT=AUTO
7. 將備庫(kù)的 pfile 文件 scp 到備庫(kù)的 /u01/app/oracle/product/12.1.0/db_1/dbs
[oracle@snow dbs]$ scp initboston.ora boston:/u01/app/oracle/product/12.1.0/db_1/dbs
oracle@boston s password:
initboston.ora 100% 1141 1.1KB/s 00:00
8. 復(fù)制主庫(kù)的密碼文件，修改為備庫(kù)的密碼文件并 scp 到備庫(kù)的 /u01/app/oracle/product/12.1.0/db_1/dbs
[oracle@snow dbs]$ cp orapwchicago orapwboston
[oracle@snow dbs]$ scp orapwboston boston:/u01/app/oracle/product/12.1.0/db_1/dbs
oracle@boston s password:
orapwboston 100% 7680 7.5KB/s 00:00
9. 修改主庫(kù)的 $ORACLE_HOME/network/admin/tnsnames.ora，手工添加（藍(lán)色）備庫(kù)的 boston 部分。其中 CHICAGO 為 CDB 的鏈接字符串，PDB1 為 PDB 的鏈接字符串。
[oracle@snow dbs]$ cd $ORACLE_HOME/network/admin
[oracle@snow admin]$ vi tnsnames.ora
BOSTON =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.228.13)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = boston)
)
)
CHICAGO =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = snow.oracle.com)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = chicago)
)
)
PDB1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.228.12)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = pdb1)
)
)
備庫(kù)操作
10. 創(chuàng)建備庫(kù)所需目錄
和主庫(kù)一樣確認(rèn)防火墻已經(jīng)關(guān)閉
[root@boston ~]# service iptables stop
[oracle@boston ~]$ export ORACLE_SID=boston
[oracle@boston ~]$ mkdir -p $ORACLE_BASE/admin/boston/adump
[oracle@boston ~]$ mkdir -p dbfile/boston/pdbseed
[oracle@boston ~]$ mkdir -p dbfile/boston/pdb1
注意：如果只創(chuàng)建了 dbfile/boston 目錄，沒有創(chuàng)建 pdbseed 和 pdb1 目錄的話再后面的 duplicate 操作會(huì)失敗。
ORA-19504: failed to create file /home/oracle/dbfile/boston/pdbseed/system01.dbf
11. 為備庫(kù)創(chuàng)建靜態(tài)監(jiān)聽，此步驟可以使用 netmgr
[oracle@boston ~]$ vi $ORACLE_HOME/network/admin/listener.ora
# listener.ora Network Configuration File: /u01/app/oracle/product/12.1.0/db_1/network/admin/listener.ora
# Generated by Oracle configuration tools.
SID_LIST_LISTENER =
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME = boston)
(ORACLE_HOME = /u01/app/oracle/product/12.1.0/db_1)
(SID_NAME = boston)
)
)
LISTENER =
(DESCRIPTION_LIST =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = boston)(PORT = 1521))
)
(DESCRIPTION =
(ADDRESS = (PROTOCOL = IPC)(KEY = EXTPROC1521))
)
)
ADR_BASE_LISTENER = /u01/app/oracle
12. 修改備庫(kù) tnsnames.ora，添加主庫(kù)的 CHICAGO(藍(lán)色)
[oracle@boston ~]$ vi $ORACLE_HOME/network/admin/tnsnames.ora
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/12.1.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
BOSTON =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.228.13)(PORT = 1521))
)
(CONNECT_DATA =
(SERVICE_NAME = boston)
)
)
CHICAGO =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.228.12)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = chicago)
)
)
13. 備庫(kù) reload 監(jiān)聽器
[oracle@boston ~]$ lsnrctl
LSNRCTL reload
主庫(kù)操作
14. 主庫(kù)從修改后的 pfile 創(chuàng)建 spfile，啟動(dòng)實(shí)例。此時(shí)關(guān)于 ADG 的配置信息將隨之實(shí)例的啟動(dòng)生效。
[oracle@snow ~]$ sqlplus sys/oracle@chicago as sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Fri May 1 18:13:45 2015
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to an idle instance.
SYS@chicago create spfile from pfile;
File created.
SYS@chicago startup
備庫(kù)操作
15. 備庫(kù)從修改后的 pfile 創(chuàng)建 spfile，啟動(dòng)實(shí)例到 nomount 狀態(tài)。
[oracle@boston dbs]$ sqlplus sys/oracle@boston as sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Wed May 6 13:03:06 2015
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to an idle instance.
SYS@boston create spfile from pfile;
File created.
SYS@boston startup nomount;
ORACLE instance started.
Total System Global Area 459304960 bytes
Fixed Size 2289544 bytes
Variable Size 381681784 bytes
Database Buffers 71303168 bytes
Redo Buffers 4030464 bytes
SYS@boston exit
16. 使用 rman duplicate 來(lái)在線復(fù)制主庫(kù)。rman 部分輸出比較多，命名語(yǔ)句使用高亮表標(biāo)示，其它字體為屏幕輸出。
[oracle@boston ~]$ rman target sys/oracle@chicago auxiliary sys/oracle@boston
Recovery Manager: Release 12.1.0.1.0 – Production on Mon May 25 14:27:16 2015
Copyright (c) 1982, 2013, Oracle and/or its affiliates. All rights reserved.
connected to target database: CHICAGO (DBID=1488305431)
connected to auxiliary database: CHICAGO (not mounted)
RMAN duplicate target database for standby from active database dorecover nofilenamecheck;
Starting Duplicate Db at 25-MAY-15
using target database control file instead of recovery catalog
allocated channel: ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: SID=20 device type=DISK
current log archived
contents of Memory Script:
{
backup as copy reuse
targetfile /u01/app/oracle/product/12.1.0.1/db_1/dbs/orapwchicago auxiliary format
/u01/app/oracle/product/12.1.0/db_1/dbs/orapwboston ;
}
executing Memory Script
Starting backup at 25-MAY-15
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=265 device type=DISK
Finished backup at 25-MAY-15
contents of Memory Script:
{
restore clone from service chicago standby controlfile;
}
executing Memory Script
Starting restore at 25-MAY-15
using channel ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: restoring control file
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01
output file name=/home/oracle/dbfile/boston/control01.ctl
output file name=/home/oracle/dbfile/boston/control02.ctl
Finished restore at 25-MAY-15
contents of Memory Script:
{
sql clone alter database mount standby database
}
executing Memory Script
sql statement: alter database mount standby database
contents of Memory Script:
{
set newname for tempfile 1 to
/home/oracle/dbfile/boston/temp01.dbf
set newname for tempfile 2 to
/home/oracle/dbfile/boston/pdbseed/pdbseed_temp01.dbf
set newname for tempfile 3 to
/home/oracle/dbfile/boston/pdb1/pdb1_temp01.dbf
switch clone tempfile all;
set newname for datafile 1 to
/home/oracle/dbfile/boston/system01.dbf
set newname for datafile 3 to
/home/oracle/dbfile/boston/sysaux01.dbf
set newname for datafile 4 to
/home/oracle/dbfile/boston/undotbs01.dbf
set newname for datafile 5 to
/home/oracle/dbfile/boston/pdbseed/system01.dbf
set newname for datafile 6 to
/home/oracle/dbfile/boston/users01.dbf
set newname for datafile 7 to
/home/oracle/dbfile/boston/pdbseed/sysaux01.dbf
set newname for datafile 8 to
/home/oracle/dbfile/boston/pdb1/system01.dbf
set newname for datafile 9 to
/home/oracle/dbfile/boston/pdb1/sysaux01.dbf
set newname for datafile 10 to
/home/oracle/dbfile/boston/pdb1/SAMPLE_SCHEMA_users01.dbf
set newname for datafile 11 to
/home/oracle/dbfile/boston/pdb1/example01.dbf
restore
from service chicago clone database
;
sql alter system archive log current
}
executing Memory Script
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
renamed tempfile 1 to /home/oracle/dbfile/boston/temp01.dbf in control file
renamed tempfile 2 to /home/oracle/dbfile/boston/pdbseed/pdbseed_temp01.dbf in control file
renamed tempfile 3 to /home/oracle/dbfile/boston/pdb1/pdb1_temp01.dbf in control file
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
executing command: SET NEWNAME
Starting restore at 25-MAY-15
using channel ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00001 to /home/oracle/dbfile/boston/system01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:07
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00003 to /home/oracle/dbfile/boston/sysaux01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:07
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00004 to /home/oracle/dbfile/boston/undotbs01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:03
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00005 to /home/oracle/dbfile/boston/pdbseed/system01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:03
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00006 to /home/oracle/dbfile/boston/users01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00007 to /home/oracle/dbfile/boston/pdbseed/sysaux01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:07
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00008 to /home/oracle/dbfile/boston/pdb1/system01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:03
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00009 to /home/oracle/dbfile/boston/pdb1/sysaux01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:07
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00010 to /home/oracle/dbfile/boston/pdb1/SAMPLE_SCHEMA_users01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_AUX_DISK_1: starting datafile backup set restore
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_AUX_DISK_1: restoring datafile 00011 to /home/oracle/dbfile/boston/pdb1/example01.dbf
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:03
Finished restore at 25-MAY-15
sql statement: alter system archive log current
current log archived
contents of Memory Script:
{
restore clone force from service chicago
archivelog from scn 2165528;
switch clone datafile all;
}
executing Memory Script
Starting restore at 25-MAY-15
using channel ORA_AUX_DISK_1
channel ORA_AUX_DISK_1: starting archived log restore to default destination
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: restoring archived log
archived log thread=1 sequence=82
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_AUX_DISK_1: starting archived log restore to default destination
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: restoring archived log
archived log thread=1 sequence=83
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01
channel ORA_AUX_DISK_1: starting archived log restore to default destination
channel ORA_AUX_DISK_1: using network backup set from service chicago
channel ORA_AUX_DISK_1: restoring archived log
archived log thread=1 sequence=84
channel ORA_AUX_DISK_1: restore complete, elapsed time: 00:00:01
Finished restore at 25-MAY-15
datafile 1 switched to datafile copy
input datafile copy RECID=7 STAMP=880640897 file name=/home/oracle/dbfile/boston/system01.dbf
datafile 3 switched to datafile copy
input datafile copy RECID=8 STAMP=880640897 file name=/home/oracle/dbfile/boston/sysaux01.dbf
datafile 4 switched to datafile copy
input datafile copy RECID=9 STAMP=880640897 file name=/home/oracle/dbfile/boston/undotbs01.dbf
datafile 5 switched to datafile copy
input datafile copy RECID=10 STAMP=880640897 file name=/home/oracle/dbfile/boston/pdbseed/system01.dbf
datafile 6 switched to datafile copy
input datafile copy RECID=11 STAMP=880640897 file name=/home/oracle/dbfile/boston/users01.dbf
datafile 7 switched to datafile copy
input datafile copy RECID=12 STAMP=880640897 file name=/home/oracle/dbfile/boston/pdbseed/sysaux01.dbf
datafile 8 switched to datafile copy
input datafile copy RECID=13 STAMP=880640897 file name=/home/oracle/dbfile/boston/pdb1/system01.dbf
datafile 9 switched to datafile copy
input datafile copy RECID=14 STAMP=880640897 file name=/home/oracle/dbfile/boston/pdb1/sysaux01.dbf
datafile 10 switched to datafile copy
input datafile copy RECID=15 STAMP=880640897 file name=/home/oracle/dbfile/boston/pdb1/SAMPLE_SCHEMA_users01.dbf
datafile 11 switched to datafile copy
input datafile copy RECID=16 STAMP=880640897 file name=/home/oracle/dbfile/boston/pdb1/example01.dbf
contents of Memory Script:
{
set until scn 2165825;
recover
standby
clone database
delete archivelog
;
}
executing Memory Script
executing command: SET until clause
Starting recover at 25-MAY-15
using channel ORA_AUX_DISK_1
starting media recovery
archived log for thread 1 with sequence 82 is already on disk as file /home/oracle/arch/1_82_878586712.arc
archived log for thread 1 with sequence 83 is already on disk as file /home/oracle/arch/1_83_878586712.arc
archived log for thread 1 with sequence 84 is already on disk as file /home/oracle/arch/1_84_878586712.arc
archived log file name=/home/oracle/arch/1_82_878586712.arc thread=1 sequence=82
archived log file name=/home/oracle/arch/1_83_878586712.arc thread=1 sequence=83
archived log file name=/home/oracle/arch/1_84_878586712.arc thread=1 sequence=84
media recovery complete, elapsed time: 00:00:00
Finished recover at 25-MAY-15
Finished Duplicate Db at 25-MAY-15
到此為止 12c CDB ADG 創(chuàng)建完畢。
備庫(kù)創(chuàng)建成功后，CDB 處于 mount 狀態(tài)，角色處于物理備庫(kù)。逐步開啟 ADG。
[oracle@boston ~]$ sqlplus / as sysdba
SQL*Plus: Release 12.1.0.1.0 Production on Mon May 25 14:30:12 2015
Copyright (c) 1982, 2013, Oracle. All rights reserved.
Connected to:
Oracle Database 12c Enterprise Edition Release 12.1.0.1.0 – 64bit Production
With the Partitioning, OLAP, Advanced Analytics and Real Application Testing options
SYS@boston select open_mode,database_role from v$database;
OPEN_MODE DATABASE_ROLE
——————– —————-
MOUNTED PHYSICAL STANDBY
備庫(kù)執(zhí)行 ALTER DATABAE OPEN 會(huì)將 CDB 置于 open read only 狀態(tài)。
SYS@boston ALTER DATABASE OPEN;
Database altered.
備庫(kù)執(zhí)行 ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING ARCHIVED LOGFILE DISCONNECT 將實(shí)時(shí)應(yīng)用主庫(kù)傳遞過(guò)來(lái)的歸檔日志。和前面開啟的 open read only 疊加在一起成為 active dataguard
SYS@boston ALTER DATABASE RECOVER MANAGED STANDBY DATABASE USING ARCHIVED LOGFILE DISCONNECT;
Database altered.
SYS@boston select open_mode,database_role from v$database;
OPEN_MODE DATABASE_ROLE
——————– —————-
READ ONLY WITH APPLY PHYSICAL STANDBY
開啟 ADG 的過(guò)程，只會(huì)將 CDB 置于 open read only，并不會(huì)將 mount 狀態(tài)的 pdb1 也開啟為 open read only。
SYS@boston show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
———- —————————— ———- ———-
2 PDB$SEED READ ONLY NO
3 PDB1 MOUNTED
SYS@boston alter pluggable database all open;
Pluggable database altered.
測(cè)試 ADG 效果，在主庫(kù)的 pdb1 創(chuàng)建表空間后在備庫(kù)驗(yàn)證是否可以同步。
主庫(kù)在 pdb 創(chuàng)建一個(gè)表空間 tbs1
SYS@chicago show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
———- —————————— ———- ———-
2 PDB$SEED READ ONLY NO
3 PDB1 MOUNTED
SYS@chicago
SYS@chicago alter pluggable database all open;
Pluggable database altered.
SYS@chicago alter session set container=pdb1;
Session altered.
SYS@chicago select name from v$datafile;
NAME
——————————————————————————–
/home/oracle/dbfile/chicago/undotbs01.dbf
/home/oracle/dbfile/chicago/pdb1/system01.dbf
/home/oracle/dbfile/chicago/pdb1/sysaux01.dbf
/home/oracle/dbfile/chicago/pdb1/SAMPLE_SCHEMA_users01.dbf
/home/oracle/dbfile/chicago/pdb1/example01.dbf
SYS@chicago create tablespace tbs1 datafile /home/oracle/dbfile/chicago/pdb1/tbs1.dbf size 5m;
Tablespace created.
SYS@chicago col file_name for a58
SYS@chicago set lines 150
SYS@chicago select file_name,file_id,con_id from cdb_data_files;
FILE_NAME FILE_ID CON_ID
———————————————————- ———- ———-
/home/oracle/dbfile/chicago/pdb1/system01.dbf 8 3
/home/oracle/dbfile/chicago/pdb1/sysaux01.dbf 9 3
/home/oracle/dbfile/chicago/pdb1/SAMPLE_SCHEMA_users01.dbf 10 3
/home/oracle/dbfile/chicago/pdb1/example01.dbf 11 3
/home/oracle/dbfile/chicago/pdb1/tbs1.dbf 12 3
在備庫(kù)驗(yàn)證表空間 tbs1 同步成功。但是延時(shí)比較大，等了好久才同步成功。
SYS@boston select file_name,file_id,con_id from cdb_data_files;
FILE_NAME FILE_ID CON_ID
———————————————————- ———- ———-
/home/oracle/dbfile/boston/pdb1/example01.dbf 11 3
/home/oracle/dbfile/boston/pdb1/SAMPLE_SCHEMA_users01.dbf 10 3
/home/oracle/dbfile/boston/pdb1/sysaux01.dbf 9 3
/home/oracle/dbfile/boston/pdb1/tbs1.dbf 12 3
/home/oracle/dbfile/boston/pdb1/system01.dbf 8 3
最后測(cè)試主庫(kù)添加 pdb2，備庫(kù)的同步效果。使用圖形工具 dbca 在 CDB chicago 上創(chuàng)建新的 pdb。
主庫(kù)創(chuàng)建 pdb2 的過(guò)程中后臺(tái) alert 輸出如下：
CREATE PLUGGABLE DATABASE pdb2 ADMIN USER snow IDENTIFIED BY * ROLES=(CONNECT) file_name_convert=(/home/oracle/dbfile/chicago/pdbseed/system01.dbf , /home/oracle/dbfile/chicago/pdb2/system01.dbf ,
/home/oracle/dbfile/chicago/pdbseed/sysaux01.dbf , /home/oracle/dbfile/chicago/pdb2/sysaux01.dbf , /home/oracle/dbfile/chicago/pdbseed/pdbseed_temp01.dbf , /home/oracle/dbfile/chicago/pdb2/temp01.dbf )
Sat May 02 01:27:44 2015
****************************************************************
Pluggable Database PDB2 with pdb id – 4 is created as UNUSABLE.
If any errors are encountered before the pdb is marked as NEW,
then the pdb must be dropped
****************************************************************
Deleting old file#5 from file$
Deleting old file#7 from file$
Adding new file#13 to file$(old file#5)
Adding new file#14 to file$(old file#7)
Successfully created internal service pdb2 at open
ALTER SYSTEM: Flushing buffer cache inst=0 container=4 local
****************************************************************
Post plug operations are now complete.
Pluggable database PDB2 with pdb id – 4 is now marked as NEW.
****************************************************************
Completed: CREATE PLUGGABLE DATABASE pdb2 ADMIN USER snow IDENTIFIED BY * ROLES=(CONNECT) file_name_convert=(/home/oracle/dbfile/chicago/pdbseed/system01.dbf , /home/oracle/dbfile/chicago/pdb2/system01.dbf ,
/home/oracle/dbfile/chicago/pdbseed/sysaux01.dbf , /home/oracle/dbfile/chicago/pdb2/sysaux01.dbf , /home/oracle/dbfile/chicago/pdbseed/pdbseed_temp01.dbf , /home/oracle/dbfile/chicago/pdb2/temp01.dbf )
alter pluggable database pdb2 open
Pluggable database PDB2 dictionary check beginning
Pluggable Database PDB2 Dictionary check complete
Due to limited space in shared pool (need 6094848 bytes, have 3981120 bytes), limiting Resource Manager entities from 2048 to 32
Opening pdb PDB2 (4) with no Resource Manager plan active
Sat May 02 01:27:47 2015
Setting Resource Manager plan SCHEDULER[0x420E]:DEFAULT_MAINTENANCE_PLAN via scheduler window
Setting Resource Manager plan DEFAULT_MAINTENANCE_PLAN at pdb PDB2 (4) via parameter
Sat May 02 01:27:47 2015
XDB installed.
XDB initialized.
Pluggable database PDB2 opened read write
Completed: alter pluggable database pdb2 open
CREATE SMALLFILE TABLESPACE USERS LOGGING DATAFILE /home/oracle/dbfile/chicago/pdb2/pdb2_users01.dbf SIZE 5M REUSE AUTOEXTEND ON NEXT 1280K MAXSIZE UNLIMITED EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO
Completed: CREATE SMALLFILE TABLESPACE USERS LOGGING DATAFILE /home/oracle/dbfile/chicago/pdb2/pdb2_users01.dbf SIZE 5M REUSE AUTOEXTEND ON NEXT 1280K MAXSIZE UNLIMITED EXTENT MANAGEMENT LOCAL SEGMENT SPACE MANAGEMENT AUTO
ALTER DATABASE DEFAULT TABLESPACE USERS
Completed: ALTER DATABASE DEFAULT TABLESPACE USERS
Sat May 02 01:28:00 2015
TABLE SYS.WRI$_OPTSTAT_HISTHEAD_HISTORY: ADDED INTERVAL PARTITION SYS_P221 (42125) VALUES LESS THAN (TO_DATE( 2015-05-03 00:00:00 , SYYYY-MM-DD HH24:MI:SS , NLS_CALENDAR=GREGORIAN))
TABLE SYS.WRI$_OPTSTAT_HISTGRM_HISTORY: ADDED INTERVAL PARTITION SYS_P241 (42125) VALUES LESS THAN (TO_DATE( 2015-05-03 00:00:00 , SYYYY-MM-DD HH24:MI:SS , NLS_CALENDAR=GREGORIAN))
Sat May 02 01:28:49 2015
Thread 1 cannot allocate new log, sequence 90
Private strand flush not complete
Current log# 2 seq# 89 mem# 0: /home/oracle/dbfile/chicago/redo02.log
Sat May 02 01:28:52 2015
Thread 1 advanced to log sequence 90 (LGWR switch)
Current log# 3 seq# 90 mem# 0: /home/oracle/dbfile/chicago/redo03.log
Sat May 02 01:28:53 2015
Archived Log entry 87 added for thread 1 sequence 89 ID 0x58b61e17 dest 1:
Sat May 02 01:28:53 2015
TT00: Standby redo logfile selected for thread 1 sequence 90 for destination LOG_ARCHIVE_DEST_2
與此同時(shí)在備庫(kù)端觀察 alert 日志查看同步效果。通過(guò)日志輸出，可以觀察到新的數(shù)據(jù)文件創(chuàng)建到新的目錄 pdb2 下。
boston alert.log
Recovery successfully copied file /home/oracle/dbfile/boston/pdb2/system01.dbf from /home/oracle/dbfile/boston/pdbseed/system01.dbf
Recovery created file /home/oracle/dbfile/boston/pdb2/system01.dbf
Successfully added datafile 13 to media recovery
Datafile #13: /home/oracle/dbfile/boston/pdb2/system01.dbf
Recovery copied files for tablespace SYSAUX
Recovery successfully copied file /home/oracle/dbfile/boston/pdb2/sysaux01.dbf from /home/oracle/dbfile/boston/pdbseed/sysaux01.dbf
Recovery created file /home/oracle/dbfile/boston/pdb2/sysaux01.dbf
Successfully added datafile 14 to media recovery
Datafile #14: /home/oracle/dbfile/boston/pdb2/sysaux01.dbf
Recovery created file /home/oracle/dbfile/boston/pdb2/pdb2_users01.dbf
Successfully added datafile 15 to media recovery
Datafile #15: /home/oracle/dbfile/boston/pdb2/pdb2_users01.dbf
Media Recovery Waiting for thread 1 sequence 90 (in transit)
RFS[2]: Selected log 5 for thread 1 sequence 91 dbid 1488305431 branch 878586712
Mon May 25 15:12:53 2015
主庫(kù)創(chuàng)建后的實(shí)例列表和文件分布
SYS@chicago show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
———- —————————— ———- ———-
2 PDB$SEED READ ONLY NO
3 PDB1 READ WRITE NO
4 PDB2 READ WRITE NO
SYS@chicago select name from v$datafile;
NAME
——————————————————————————–
/home/oracle/dbfile/chicago/system01.dbf
/home/oracle/dbfile/chicago/sysaux01.dbf
/home/oracle/dbfile/chicago/undotbs01.dbf
/home/oracle/dbfile/chicago/pdbseed/system01.dbf
/home/oracle/dbfile/chicago/users01.dbf
/home/oracle/dbfile/chicago/pdbseed/sysaux01.dbf
/home/oracle/dbfile/chicago/pdb1/system01.dbf
/home/oracle/dbfile/chicago/pdb1/sysaux01.dbf
/home/oracle/dbfile/chicago/pdb1/SAMPLE_SCHEMA_users01.dbf
/home/oracle/dbfile/chicago/pdb1/example01.dbf
/home/oracle/dbfile/chicago/pdb1/tbs1.dbf
NAME
——————————————————————————–
/home/oracle/dbfile/chicago/pdb2/system01.dbf
/home/oracle/dbfile/chicago/pdb2/sysaux01.dbf
/home/oracle/dbfile/chicago/pdb2/pdb2_users01.dbf
14 rows selected.
備庫(kù)的實(shí)例列表和文件分布
SYS@boston show pdbs;
CON_ID CON_NAME OPEN MODE RESTRICTED
———- —————————— ———- ———-
2 PDB$SEED READ ONLY NO
3 PDB1 READ ONLY NO
4 PDB2 MOUNTED
SYS@boston select name from v$datafile;
NAME
——————————————————————————–
/home/oracle/dbfile/boston/system01.dbf
/home/oracle/dbfile/boston/sysaux01.dbf
/home/oracle/dbfile/boston/undotbs01.dbf
/home/oracle/dbfile/boston/pdbseed/system01.dbf
/home/oracle/dbfile/boston/users01.dbf
/home/oracle/dbfile/boston/pdbseed/sysaux01.dbf
/home/oracle/dbfile/boston/pdb1/system01.dbf
/home/oracle/dbfile/boston/pdb1/sysaux01.dbf
/home/oracle/dbfile/boston/pdb1/SAMPLE_SCHEMA_users01.dbf
/home/oracle/dbfile/boston/pdb1/example01.dbf
/home/oracle/dbfile/boston/pdb1/tbs1.dbf
NAME
——————————————————————————–
/home/oracle/dbfile/boston/pdb2/system01.dbf
/home/oracle/dbfile/boston/pdb2/sysaux01.dbf
/home/oracle/dbfile/boston/pdb2/pdb2_users01.dbf
14 rows selected.
一些補(bǔ)充
主庫(kù)新建 pdb2 后不會(huì)自動(dòng)添加 tnsnames，為了客戶端連接需要手工添加藍(lán)色 pdb2 部分。
[oracle@snow admin]$ more tnsnames.ora
# tnsnames.ora Network Configuration File: /u01/app/oracle/product/12.1.0.1/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools.
BOSTON =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = boston)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = boston)
)
)
CHICAGO =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.228.12)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = chicago)
)
)
LISTENER_ALEX =
(ADDRESS = (PROTOCOL = TCP)(HOST = snow.oracle.com)(PORT = 1521))
PDB1 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.228.12)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = pdb1)
)
)
PDB2 =
(DESCRIPTION =
(ADDRESS_LIST =
(ADDRESS = (PROTOCOL = TCP)(HOST = 172.16.228.12)(PORT = 1521))
)
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = pdb2)
)
)
主庫(kù)創(chuàng)建 pdb2，備庫(kù)應(yīng)用日志后也創(chuàng)建了 pdb2，并且在制定目錄 /home/oracle/dbfile/boston 下創(chuàng)建了 pdb2 目錄來(lái)存放數(shù)據(jù)文件。
這本來(lái)是不需要擔(dān)心的地方，但是在 HP Unix 會(huì)出現(xiàn)問(wèn)題。備庫(kù)應(yīng)用日志后無(wú)法創(chuàng)建 pdb 的目錄導(dǎo)致創(chuàng)建失敗。每當(dāng)主庫(kù)創(chuàng)建一個(gè)新的 pdb 之前需要在備庫(kù)手工創(chuàng)建相應(yīng)的目錄才可以。
[oracle@boston boston]$ ll
total 2351032
-rw-r—– 1 oracle oinstall 18268160 May 25 15:26 control01.ctl
-rw-r—– 1 oracle oinstall 18268160 May 25 15:26 control02.ctl
drwxr-xr-x 2 oracle oinstall 4096 May 25 14:43 pdb1
drwxr-x— 2 oracle oinstall 4096 May 25 15:12 pdb2drwxr-xr-x 2 oracle oinstall 4096 May 25 14:31 pdbseed
-rw-r—– 1 oracle oinstall 52429312 May 25 14:28 redo01.log
-rw-r—– 1 oracle oinstall 52429312 May 25 14:28 redo02.log
-rw-r—– 1 oracle oinstall 52429312 May 25 14:28 redo03.log
-rw-r—– 1 oracle oinstall 52429312 May 25 15:12 redo04.log
-rw-r—– 1 oracle oinstall 52429312 May 25 15:26 redo05.log
-rw-r—– 1 oracle oinstall 52429312 May 25 14:28 redo06.log
-rw-r—– 1 oracle oinstall 52429312 May 25 14:28 redo07.log
-rw-r—– 1 oracle oinstall 807411712 May 25 15:13 sysaux01.dbf
-rw-r—– 1 oracle oinstall 828383232 May 25 15:13 system01.dbf
-rw-r—– 1 oracle oinstall 92282880 May 25 14:31 temp01.dbf
-rw-r—– 1 oracle oinstall 361766912 May 25 15:13 undotbs01.dbf
-rw-r—– 1 oracle oinstall 5251072 May 25 15:13 users01.dbf
關(guān)于如何理解 Oracle 12c CDB 的 ADG 就分享到這里了，希望以上內(nèi)容可以對(duì)大家有一定的幫助，可以學(xué)到更多知識(shí)。如果覺得文章不錯(cuò)，可以把它分享出去讓更多的人看到。
