1.環境介紹
測試環境， 在一個雙節點的RAC上使用duplicate搭建DG，使用線上的方式搭建
|
主機 |
IP |
作業系統 |
例項 |
db_name |
db_unique_name |
db_version |
配置 |
|
rac1 |
192.168.163.4 |
centos7.8 |
orcl1 |
orcl |
orcl |
11.2.0.4 |
4c4g50G |
|
rac2 |
192.168.163.5 |
centos7.8 |
orcl2 |
orcl |
orcl |
4c4g50G |
|
|
rac-dg |
192.168.163.27 |
centos7.8 |
orcl_stb |
orcl |
orcl_stb |
4c4g50G |
2. 主庫檢查
2.1 檢查歸檔
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination +CRSDG
Oldest online log sequence 76
Next log sequence to archive 77
Current log sequence 77
2.2主備引數檢查
set linesize 500 pages 0
col value for a90
col name for a50
select name,value from v$parameter where name in ('db_name','db_unique_name','log_archive_config','log_archive_dest_1','log_archive_dest_2','log_archive_dest_state_1','log_archive_dest_state_2','remote_login_passwordfile','log_archive_format','log_archive_max_processes','fal_server','db_file_name_convert','log_file_name_convert','standby_file_management'); db_file_name_convert
log_file_name_convert
log_archive_dest_1 LOCATION=+CRSDG
log_archive_dest_2 service=orcl_stb lgwr async valid_for=(online_logfiles,primary_role) db_unique_name=orcl_stb
log_archive_dest_state_1 enable
log_archive_dest_state_2 ENABLE
fal_server orcl_stb
log_archive_config DG_CONFIG=(orcl,orcl_stb)
log_archive_format %t_%s_%r.dbf
log_archive_max_processes 4
standby_file_management AUTO
remote_login_passwordfile EXCLUSIVE
db_name orcl
db_unique_name orcl 14 rows selected.
2.3 檢查日誌歸檔檔案位置
--歸檔較多的話，建議輸出到文字中，一般歸檔都會儲存在相同位置下，如有需要可以進行查詢
方法一：
select name,sequence#,to_char(completion_time,'yyyy-mm-dd hh24:mi:ss') "completion_time" from v$archived_log order by sequence# ;
方法二：
rman{}
crosscheck archivelog all;
--查詢redo檔案的位置，如果給備庫建立了standby log，需要為redo檔案進行轉儲
select group#,thread#,sequence#,bytes/1024/1024 mb,archived,status from V$STANDBY_LOG;
2.4 檢查資料檔案位置
--需要判斷臨時檔案資料檔案，是否在相同目錄，如果不通，都需要對目錄進行轉儲
select file_name from dba_temp_files;
select file_name from dba_data_files;
2.5檢查監聽
[oracle@rac1 ~]$ lsnrctl status LSNRCTL for Linux: Version 11.2.0.4.0 - Production on 24-AUG-2021 11:21:59 Copyright (c) 1991, 2013, Oracle. All rights reserved. Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias LISTENER
Version TNSLSNR for Linux: Version 11.2.0.4.0 - Production
Start Date 24-AUG-2021 09:12:44
Uptime 0 days 2 hr. 9 min. 15 sec
Trace Level off
Security ON: Local OS Authentication
SNMP OFF
Listener Parameter File /u1/db/11.2.0/grid/network/admin/listener.ora
Listener Log File /u1/db/grid/diag/tnslsnr/rac1/listener/alert/log.xml
Listening Endpoints Summary...
(DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=LISTENER)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.163.4)(PORT=1521)))
(DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=192.168.163.7)(PORT=1521)))
Services Summary...
Service "+ASM" has 1 instance(s).
Instance "+ASM1", status READY, has 1 handler(s) for this service...
Service "orcl" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
Service "orclXDB" has 1 instance(s).
Instance "orcl1", status READY, has 1 handler(s) for this service...
The command completed successfully
2.6檢查tnsname
[oracle@rac1 ~]$ cat $ORACLE_HOME/network/admin/tnsnames.ora
# tnsnames.ora Network Configuration File: /u1/db/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools. ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac-scan)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
orcl1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
orcl2 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac2)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
3.主庫配置
3.1修改歸檔設定
alter system set log_archive_config='DG_CONFIG=(orcl,orcl_stb)' sid='*'; SQL> show parameter log_archive_config NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
log_archive_config string DG_CONFIG=(orcl,orcl_stb)
3.2配置歸檔路徑
alter system set log_archive_dest_2='service=orcl_stb lgwr async valid_for=(online_logfiles,primary_role) db_unique_name=orcl_stb' scope=both sid='*'; alter system set log_archive_dest_state_2='enable' sid='*'; SQL> show parameter log_archive_dest_2 NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
log_archive_dest_2 string service=orcl_stb lgwr async va
lid_for=(online_logfiles,prima
ry_role) db_unique_name=orcl_s
tb
3.3設定fal_server
alter system set fal_server='orcl_stb' scope=both sid='*'; SQL> show parameter fal_server NAME TYPE VALUE
------------------------------------ ----------- ------------------------------
fal_server string orcl_stb
3.4生成pfile檔案
create pfile='/tmp/initorcl.ora' from spfile;
傳輸pfile檔案到備庫指定目錄
scp /tmp/initorcl.ora [email protected]:$ORACLE_HOME/dbs
3.5 standby_file_management
注意修改standby_file_management的生成方式，如果是MANUAL，改成AUTO
3.6拷貝密碼檔案
rac搭建DG，需要把密碼檔案一節點->傳到二節點->二節點傳到備庫，統一密碼檔案
scp /u01/app/oracle/product/11.2.0.4/dbhome_1/dbs/orapworcl oracle@rac2:$ORACLE_HOME/dbs
scp /u01/app/oracle/product/11.2.0.4/dbhome_1/dbs/orapworcl [email protected]:$ORACLE_HOME/dbs
備庫
mv orapworcl orapworcl_stb
--如果需要重新生成密碼檔案或者修改密碼
alter user sys identified by oracle;
orapwd file=$ORACLE_HOME/dbs/orapworcl_stb password=oracle entries=100 ignorecase=y
3.7修改tnsname
雙節點修改tnsnames.ora
[oracle@rac1 ~]$ cat $ORACLE_HOME/network/admin/tnsnames.ora
# tnsnames.ora Network Configuration File: /u1/db/oracle/product/11.2.0/db_1/network/admin/tnsnames.ora
# Generated by Oracle configuration tools. ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac-scan)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
orcl1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac1)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
orcl2 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac2)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
orcl_stb =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.163.27)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl_stb)
)
)
4.備庫配置
192.168.163.27，提前給備庫伺服器安裝好資料庫軟體，不用新建例項，測試伺服器跟主庫伺服器配置都相同
4.1修改pfile檔案
修改ora檔名稱
mv initorcl.ora initorcl_stb.ora
編輯pfile檔案
- 註釋有關叢集相關引數
- 給控制檔案新生成一個位置
- 修改fal_client和fal_server的名稱
- 轉儲資料和日誌檔案路徑
- 給一個歸檔的路徑
[oracle@rac-dg dbs]$ vim initorcl_stb.ora orcl2.__db_cache_size=603979776
orcl1.__db_cache_size=603979776
orcl2.__java_pool_size=16777216
orcl1.__java_pool_size=16777216
orcl2.__large_pool_size=33554432
orcl1.__large_pool_size=33554432
orcl2.__oracle_base='/u1/db/oracle'#ORACLE_BASE set from environment
orcl2.__pga_aggregate_target=637534208
orcl1.__pga_aggregate_target=637534208
orcl2.__sga_target=956301312
orcl1.__sga_target=956301312
orcl2.__shared_io_pool_size=0
orcl1.__shared_io_pool_size=0
orcl2.__shared_pool_size=285212672
orcl1.__shared_pool_size=285212672
orcl2.__streams_pool_size=0
orcl1.__streams_pool_size=0
*.audit_file_dest='/u1/db/oracle/admin/orcl/adump'
*.audit_trail='none'
#*.cluster_database=TRUE
*.compatible='11.2.0.4.0'
*.control_files='/u1/db/oracle/product/11.2.0/db_1/dbs/orcl_stb.ctl'
*.db_block_size=8192
*.db_create_file_dest='/u1/db/oracle/product/11.2.0/db_1/dbs'
*.db_domain=''
*.db_name='orcl'
*.db_unique_name='orcl_stb'
*.diagnostic_dest='/u1/db/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=orclXDB)'
*.fal_client='orcl_stb'
*.fal_server='orcl'
#orcl1.instance_number=1
#orcl2.instance_number=2
*.log_archive_config='DG_CONFIG=(orcl,orcl_stb)'
*.log_archive_dest_1='LOCATION=/arch'
#*.log_archive_dest_2='service=orcl_stb lgwr async valid_for=(online_logfiles,primary_role) db_unique_name=orcl_stb'
*.db_file_name_convert='+FRADG/orcl/datafile','/u1/db/oracle/product/11.2.0/db_1/dbs','+FRADG/orcl/tempfile','/u1/db/oracle/product/11.2.0/db_1/dbs'
*.log_file_name_convert='+CRSDG/ORCL/ARCHIVELOG','/arch','+CRSDG/rac-cluster/ocrfile','/arch'
*.memory_target=1589641216
*.open_cursors=300
*.processes=150
#*.remote_listener='rac-scan:1521'
*.remote_login_passwordfile='exclusive'
*.standby_file_management='AUTO'
#orcl2.thread=2
#orcl1.thread=1
orcl2.undo_tablespace='UNDOTBS2'
orcl1.undo_tablespace='UNDOTBS1'
4.2建立目錄並授權
建立initorcl_stb.ora中需要目錄並授權
mkdir -p /u1/db/oracle/admin/orcl/adump
mkdir -p /arch
mkdir -p /u1/db/oracle chown -R oracle.oinstall /arch
chown -R oracle.oinstall /u1/db/oracle/admin/orcl/adump
chown -R oracle.oinstall /u1/db/oracle
4.3配置監聽
配置靜態監聽，LISTENER在前，SID_LIST_LISTENER在後
[oracle@rac-dg admin]$ cat listener.ora
LISTENER =
(DESCRIPTION=
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.163.27)(PORT=1521)
)
)
SID_LIST_LISTENER=
(SID_LIST =
(SID_DESC =
(GLOBAL_DBNAME= orcl_stb)
(ORACLE_HOME=/u1/db/oracle/product/11.2.0/db_1)
(SID_NAME = orcl_stb)
)
)
ADR_BASE_LISTENER = /u1/db/oracle
4.4啟動監聽
[oracle@rac-dg admin]$ lsnrctl start
4.5配置tnsname
在備庫中如果使用了主機名代替IP，就先將rac中的/etc/hosts 解析的主機名寫進到備庫的hosts檔案裡
[oracle@rac-dg admin]$ cat tnsnames.ora
ORCL =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.163.9)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
orcl1 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.163.4)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
orcl2 =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = rac2)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl)
)
)
orcl_stb =
(DESCRIPTION =
(ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.163.27)(PORT = 1521))
(CONNECT_DATA =
(SERVER = DEDICATED)
(SERVICE_NAME = orcl_stb)
)
)
4.6 修改備庫密碼檔名稱
4.7主備互相驗證tns
主：
[oracle@rac1 ~]$ tnsping orcl_stb TNS Ping Utility for Linux: Version 11.2.0.4.0 - Production on 24-AUG-2021 15:03:18 Copyright (c) 1997, 2013, Oracle. All rights reserved. Used parameter files: Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.163.27)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl_stb)))
OK (0 msec)
[oracle@rac1 ~]$ tnsping orcl1 TNS Ping Utility for Linux: Version 11.2.0.4.0 - Production on 24-AUG-2021 15:03:31 Copyright (c) 1997, 2013, Oracle. All rights reserved. Used parameter files: Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = rac1)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
OK (10 msec)
備：
[oracle@rac-dg admin]$ tnsping orcl_stb TNS Ping Utility for Linux: Version 11.2.0.4.0 - Production on 24-AUG-2021 15:03:26 Copyright (c) 1997, 2013, Oracle. All rights reserved. Used parameter files: Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.163.27)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl_stb)))
OK (0 msec)
[oracle@rac-dg admin]$ tnsping orcl1 TNS Ping Utility for Linux: Version 11.2.0.4.0 - Production on 24-AUG-2021 15:03:39 Copyright (c) 1997, 2013, Oracle. All rights reserved. Used parameter files: Used TNSNAMES adapter to resolve the alias
Attempting to contact (DESCRIPTION = (ADDRESS = (PROTOCOL = TCP)(HOST = 192.168.163.4)(PORT = 1521)) (CONNECT_DATA = (SERVER = DEDICATED) (SERVICE_NAME = orcl)))
OK (0 msec)
--注意此時主備兩個庫的狀態是否正確，DBID等資訊，避免生產事故
[oracle@rac-dg admin]$ rman target sys/oracle@orcl1 auxiliary sys/oracle@orcl_stb Recovery Manager: Release 11.2.0.4.0 - Production on Tue Aug 24 15:05:50 2021 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. connected to target database: ORCL (DBID=1608598914)
connected to auxiliary database: ORCL (not mounted)
5. 恢復DG
5.1啟動到nomount狀態
SQL> startup nomount pfile from 'initorcl_stb.ora';
5.2恢復資料庫
--如果資料量過大，儘量使用指令碼後臺恢復，很多生產的前臺連線會話時間都很短
[oracle@PEKPBSDIHDBP01 ~]$ cat duplicate.sh
rman target sys/oracle@orcl auxiliary sys/oracle@orcl_stb log=/tmp/dup.log <<EOF
run {
allocate channel p1 type disk;
allocate channel p2 type disk;
allocate auxiliary channel s1 type disk;
allocate auxiliary channel s2 type disk;
duplicate target database for standby from active database nofilenamecheck;
}
exit;
EOF
chmod +x duplicate.sh
執行日誌：
[oracle@rac-dg tmp]$ cat dup.log Recovery Manager: Release 11.2.0.4.0 - Production on Mon Aug 23 19:17:55 2021 Copyright (c) 1982, 2011, Oracle and/or its affiliates. All rights reserved. connected to target database: ORCL (DBID=1608598914)
connected to auxiliary database: ORCL (not mounted) RMAN> 2> 3> 4> 5> 6> 7>
using target database control file instead of recovery catalog
allocated channel: p1
channel p1: SID=77 instance=orcl1 device type=DISK allocated channel: p2
channel p2: SID=143 instance=orcl1 device type=DISK allocated channel: s1
channel s1: SID=134 device type=DISK allocated channel: s2
channel s2: SID=10 device type=DISK Starting Duplicate Db at 23-AUG-21 contents of Memory Script:
{
backup as copy reuse
targetfile '/u1/db/oracle/product/11.2.0/db_1/dbs/orapworcl1' auxiliary format
'/u1/db/oracle/product/11.2.0/db_1/dbs/orapworcl_stb' ;
}
executing Memory Script Starting backup at 23-AUG-21
Finished backup at 23-AUG-21 contents of Memory Script:
{
backup as copy current controlfile for standby auxiliary format '/u1/db/oracle/product/11.2.0/db_1/dbs/orcl_stb.ctl';
}
executing Memory Script Starting backup at 23-AUG-21
channel p1: starting datafile copy
copying standby control file
output file name=/u1/db/oracle/product/11.2.0/db_1/dbs/snapcf_orcl1.f tag=TAG20210823T191758 RECID=30 STAMP=1081365479
channel p1: datafile copy complete, elapsed time: 00:00:01
Finished backup at 23-AUG-21 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
"/u1/db/oracle/product/11.2.0/db_1/dbs/temp.263.1080818181";
switch clone tempfile all;
set newname for datafile 1 to
"/u1/db/oracle/product/11.2.0/db_1/dbs/system.256.1080818101";
set newname for datafile 2 to
"/u1/db/oracle/product/11.2.0/db_1/dbs/sysaux.257.1080818101";
set newname for datafile 3 to
"/u1/db/oracle/product/11.2.0/db_1/dbs/undotbs1.258.1080818101";
set newname for datafile 4 to
"/u1/db/oracle/product/11.2.0/db_1/dbs/users.259.1080818101";
set newname for datafile 5 to
"/u1/db/oracle/product/11.2.0/db_1/dbs/example.264.1080818183";
set newname for datafile 6 to
"/u1/db/oracle/product/11.2.0/db_1/dbs/undotbs2.265.1080818283";
backup as copy reuse
datafile 1 auxiliary format
"/u1/db/oracle/product/11.2.0/db_1/dbs/system.256.1080818101" datafile
2 auxiliary format
"/u1/db/oracle/product/11.2.0/db_1/dbs/sysaux.257.1080818101" datafile
3 auxiliary format
"/u1/db/oracle/product/11.2.0/db_1/dbs/undotbs1.258.1080818101" datafile
4 auxiliary format
"/u1/db/oracle/product/11.2.0/db_1/dbs/users.259.1080818101" datafile
5 auxiliary format
"/u1/db/oracle/product/11.2.0/db_1/dbs/example.264.1080818183" datafile
6 auxiliary format
"/u1/db/oracle/product/11.2.0/db_1/dbs/undotbs2.265.1080818283" ;
sql 'alter system archive log current';
}
executing Memory Script executing command: SET NEWNAME renamed tempfile 1 to /u1/db/oracle/product/11.2.0/db_1/dbs/temp.263.1080818181 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 Starting backup at 23-AUG-21
channel p1: starting datafile copy
input datafile file number=00001 name=+FRADG/orcl/datafile/system.256.1080818101
channel p2: starting datafile copy
input datafile file number=00002 name=+FRADG/orcl/datafile/sysaux.257.1080818101
output file name=/u1/db/oracle/product/11.2.0/db_1/dbs/system.256.1080818101 tag=TAG20210823T191805
channel p1: datafile copy complete, elapsed time: 00:00:07
channel p1: starting datafile copy
input datafile file number=00005 name=+FRADG/orcl/datafile/example.264.1080818183
output file name=/u1/db/oracle/product/11.2.0/db_1/dbs/sysaux.257.1080818101 tag=TAG20210823T191805
channel p2: datafile copy complete, elapsed time: 00:00:07
channel p2: starting datafile copy
input datafile file number=00003 name=+FRADG/orcl/datafile/undotbs1.258.1080818101
output file name=/u1/db/oracle/product/11.2.0/db_1/dbs/undotbs1.258.1080818101 tag=TAG20210823T191805
channel p2: datafile copy complete, elapsed time: 00:00:01
channel p2: starting datafile copy
input datafile file number=00006 name=+FRADG/orcl/datafile/undotbs2.265.1080818283
output file name=/u1/db/oracle/product/11.2.0/db_1/dbs/example.264.1080818183 tag=TAG20210823T191805
channel p1: datafile copy complete, elapsed time: 00:00:02
channel p1: starting datafile copy
input datafile file number=00004 name=+FRADG/orcl/datafile/users.259.1080818101
output file name=/u1/db/oracle/product/11.2.0/db_1/dbs/undotbs2.265.1080818283 tag=TAG20210823T191805
channel p2: datafile copy complete, elapsed time: 00:00:01
output file name=/u1/db/oracle/product/11.2.0/db_1/dbs/users.259.1080818101 tag=TAG20210823T191805
channel p1: datafile copy complete, elapsed time: 00:00:01
Finished backup at 23-AUG-21 sql statement: alter system archive log current contents of Memory Script:
{
switch clone datafile all;
}
executing Memory Script datafile 1 switched to datafile copy
input datafile copy RECID=30 STAMP=1081365498 file name=/u1/db/oracle/product/11.2.0/db_1/dbs/system.256.1080818101
datafile 2 switched to datafile copy
input datafile copy RECID=31 STAMP=1081365498 file name=/u1/db/oracle/product/11.2.0/db_1/dbs/sysaux.257.1080818101
datafile 3 switched to datafile copy
input datafile copy RECID=32 STAMP=1081365498 file name=/u1/db/oracle/product/11.2.0/db_1/dbs/undotbs1.258.1080818101
datafile 4 switched to datafile copy
input datafile copy RECID=33 STAMP=1081365498 file name=/u1/db/oracle/product/11.2.0/db_1/dbs/users.259.1080818101
datafile 5 switched to datafile copy
input datafile copy RECID=34 STAMP=1081365498 file name=/u1/db/oracle/product/11.2.0/db_1/dbs/example.264.1080818183
datafile 6 switched to datafile copy
input datafile copy RECID=35 STAMP=1081365498 file name=/u1/db/oracle/product/11.2.0/db_1/dbs/undotbs2.265.1080818283
Finished Duplicate Db at 23-AUG-21
released channel: p1
released channel: p2
released channel: s1
released channel: s2 RMAN> Recovery Manager complete.
5.3開啟實時同步
SQL> alter database open;
SQL> alter database recover managed standby database using current logfile disconnect from session;
5.4主備狀態查詢
可以進行日誌切換進行驗證
alter system switch logfile;
主備角色狀態
主：
SQL> select open_mode,protection_mode,database_role,switchover_status from v$database; OPEN_MODE PROTECTION_MODE DATABASE_ROLE SWITCHOVER_STATUS
-------------------- -------------------- ---------------- --------------------
READ WRITE MAXIMUM PERFORMANCE PRIMARY TO STANDBY
備：
SQL> select open_mode,protection_mode,database_role,switchover_status from v$database; OPEN_MODE PROTECTION_MODE DATABASE_ROLE SWITCHOVER_STATUS
-------------------- -------------------- ---------------- --------------------
READ ONLY WITH APPLY MAXIMUM PERFORMANCE PHYSICAL STANDBY NOT ALLOWED
當前歸檔狀態
主：
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination +CRSDG
Oldest online log sequence 79
Next log sequence to archive 80
Current log sequence 80
備：
SQL> archive log list;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /arch
Oldest online log sequence 79
Next log sequence to archive 0
Current log sequence 80
MRP應用狀態
SQL> select process,client_process,sequence#,status,BLOCK#,BLOCKS from v$managed_standby; PROCESS CLIENT_P SEQUENCE# STATUS BLOCK# BLOCKS
--------- -------- ---------- ------------ ---------- ----------
ARCH ARCH 77 CLOSING 12288 136
ARCH ARCH 0 CONNECTED 0 0
ARCH ARCH 78 CLOSING 1 1
ARCH ARCH 79 CLOSING 1 98
RFS LGWR 57 IDLE 14318 1
RFS UNKNOWN 0 IDLE 0 0
RFS ARCH 0 IDLE 0 0
RFS UNKNOWN 0 IDLE 0 0
RFS ARCH 0 IDLE 0 0
RFS UNKNOWN 0 IDLE 0 0
RFS LGWR 80 IDLE 10142 1 PROCESS CLIENT_P SEQUENCE# STATUS BLOCK# BLOCKS
--------- -------- ---------- ------------ ---------- ----------
MRP0 N/A 80 APPLYING_LOG 10142 102400 12 rows selected.
