Создание копии базы данных из бекапа с помощью RMAN на том же сервере:


Имеется 1 сервер Oracle 12c, установленный как здесь


Создаю password file для нового instance COPY12

$ cd $ORACLE_HOME/dbs/
$ cp orapworcl12 orapwcopy12


Прописываю параметры подключения к создаваемому instance COPY12

$ cd /u01/oracle/database/12.1/network/admin/


$ vi tnsnames.ora


COPY12 =
  (DESCRIPTION =
    (ADDRESS = (PROTOCOL = TCP)(HOST = moscow.localdomain)(PORT = 1521))
    (CONNECT_DATA =
      (SERVER = DEDICATED)
      (SERVICE_NAME = copy12)
    )
  )


Стартую instance COPY12 в режиме nomount

$ export ORACLE_SID=COPY12


$ cd /u01/oracle/database/12.1/dbs/


$ vi init${ORACLE_SID}.ora

db_name=copy12
COMPATIBLE=12.1.0.2.0


$ sqlplus / as sysdba


SQL> startup nomount pfile=$ORACLE_HOME/dbs/init${ORACLE_SID}.ora


SQL> select status from v$instance;

STATUS
------------------------------------
STARTED


$ ps -ef | grep copy12
oracle12 25954     1  0 09:31 ?        00:00:00 ora_pmon_copy12
oracle12 25956     1  0 09:31 ?        00:00:00 ora_psp0_copy12
oracle12 25958     1  3 09:31 ?        00:00:01 ora_vktm_copy12
oracle12 25962     1  0 09:31 ?        00:00:00 ora_gen0_copy12
oracle12 25964     1  0 09:31 ?        00:00:00 ora_mman_copy12
oracle12 25968     1  0 09:31 ?        00:00:00 ora_diag_copy12
oracle12 25970     1  0 09:31 ?        00:00:00 ora_dbrm_copy12
oracle12 25972     1  0 09:31 ?        00:00:00 ora_vkrm_copy12
oracle12 25974     1  0 09:31 ?        00:00:00 ora_dia0_copy12
oracle12 25976     1  0 09:31 ?        00:00:00 ora_dbw0_copy12
oracle12 25978     1  0 09:31 ?        00:00:00 ora_lgwr_copy12
oracle12 25980     1  0 09:31 ?        00:00:00 ora_ckpt_copy12
oracle12 25982     1  0 09:31 ?        00:00:00 ora_smon_copy12
oracle12 25984     1  0 09:31 ?        00:00:00 ora_reco_copy12
oracle12 25986     1  0 09:31 ?        00:00:00 ora_lreg_copy12
oracle12 25988     1  0 09:31 ?        00:00:00 ora_pxmn_copy12
oracle12 25990     1  0 09:31 ?        00:00:00 ora_mmon_copy12
oracle12 25992     1  0 09:31 ?        00:00:00 ora_mmnl_copy12
oracle12 26005 15234  0 09:31 pts/0    00:00:00 grep copy12


Настройка Listener для создания нового сервиса COPY12

$ cd $GRID_HOME/network/admin


$ cp listener.ora listener.ora.bkp


$ vi listener.ora


LISTENER =
(ADDRESS_LIST=
		(ADDRESS=(PROTOCOL=tcp)(HOST=moscow.localdomain)(PORT=1521))
		(ADDRESS=(PROTOCOL=ipc)(KEY=extproc)))

SID_LIST_LISTENER=
			(SID_LIST=
					(SID_DESC=
    					(GLOBAL_DBNAME=ORCL12)
    					(ORACLE_HOME=/u01/oracle/database/12.1)
    					(SID_NAME=orcl12)
					)
                    (SID_DESC=
                        (GLOBAL_DBNAME=COPY12)
                        (ORACLE_HOME=/u01/oracle/database/12.1)
                        (SID_NAME=copy12)
                    )
			)

ENABLE_GLOBAL_DYNAMIC_ENDPOINT_LISTENER=ON
VALID_NODE_CHECKING_REGISTRATION_LISTENER=SUBNET


$ lsnrctl reload;


$ lsnrctl services

***

Service "COPY12" has 2 instance(s).
  Instance "copy12", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
  Instance "copy12", status BLOCKED, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER
Service "ORCL12" has 2 instance(s).
  Instance "orcl12", status UNKNOWN, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0
         LOCAL SERVER
  Instance "orcl12", status READY, has 1 handler(s) for this service...
    Handler(s):
      "DEDICATED" established:0 refused:0 state:ready
         LOCAL SERVER
***


$ lsnrctl status;

***

Connecting to (ADDRESS=(PROTOCOL=tcp)(HOST=)(PORT=1521))
STATUS of the LISTENER
------------------------
Alias                     LISTENER
Version                   TNSLSNR for Linux: Version 12.1.0.2.0 - Production
Start Date                17-AUG-2015 06:02:18
Uptime                    3 days 3 hr. 45 min. 59 sec
Trace Level               off
Security                  ON: Local OS Authentication
SNMP                      OFF
Listener Parameter File   /u01/oracle/grid/12.1/network/admin/listener.ora
Listener Log File         /u01/oracle/diag/tnslsnr/moscow/listener/alert/log.xml
Listening Endpoints Summary...
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcp)(HOST=moscow.localdomain)(PORT=1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=ipc)(KEY=EXTPROC1521)))
  (DESCRIPTION=(ADDRESS=(PROTOCOL=tcps)(HOST=moscow.localdomain)(PORT=5500))(Security=(my_wallet_directory=/u01/oracle/admin/orcl12/xdb_wallet))(Presentation=HTTP)(Session=RAW))
Services Summary...
Service "+ASM" has 1 instance(s).
  Instance "+ASM", status READY, has 1 handler(s) for this service...
Service "COPY12" has 2 instance(s).
  Instance "copy12", status UNKNOWN, has 1 handler(s) for this service...
  Instance "copy12", status BLOCKED, has 1 handler(s) for this service...
Service "ORCL12" has 2 instance(s).
  Instance "orcl12", status UNKNOWN, has 1 handler(s) for this service...
  Instance "orcl12", status READY, has 1 handler(s) for this service...
Service "orcl12XDB" has 1 instance(s).
  Instance "orcl12", status READY, has 1 handler(s) for this service...
The command completed successfully


Подготовка RMAN скрипта для создания копии сервера


$ export ORACLE_SID=orcl12

$ echo $ORACLE_SID orcl12

Значения размера файлов журналов, которые нужно будет указать в скрипте.

SQL> select max (bytes), count (1) from v$log;

MAX(BYTES)   COUNT(1)
---------- ----------
 52428800	    3


$ rman target /

Если используется Oracle Catalog

$ rman target / catalog [email protected]


RMAN> report schema;

starting full resync of recovery catalog
full resync complete
Report of database schema for database with db_unique_name ORCL12

List of Permanent Datafiles
===========================
File Size(MB) Tablespace           RB segs Datafile Name
---- -------- -------------------- ------- ------------------------
1    810      SYSTEM               YES     +DATA/ORCL12/DATAFILE/system.258.887923593
3    780      SYSAUX               NO      +DATA/ORCL12/DATAFILE/sysaux.257.887923497
4    135      UNDOTBS1             YES     +DATA/ORCL12/DATAFILE/undotbs1.260.887923711
6    5        USERS                NO      +DATA/ORCL12/DATAFILE/users.259.887923707

List of Temporary Files
=======================
File Size(MB) Tablespace           Maxsize(MB) Tempfile Name
---- -------- -------------------- ----------- --------------------
1    197      TEMP                 32767       +DATA/ORCL12/TEMPFILE/temp.265.887923853


set lin 180
col MEMBER for a60
col status for a8

select a.GROUP#, a.THREAD#, a.BYTES/1024/1024 as MB, a.status, b.member
from v$log a, v$logfile b
where a.GROUP#=b.GROUP#;


GROUP#    THREAD#	      MB STATUS   MEMBER
---------- ---------- ---------- -------- ------------------------------------------------------------
 3	    1	      50 CURRENT  +DATA/ORCL12/ONLINELOG/group_3.264.888049601
 3	    1	      50 CURRENT  +ARCH/ORCL12/ONLINELOG/group_3.259.888049605
 2	    1	      50 INACTIVE +DATA/ORCL12/ONLINELOG/group_2.263.888049597
 2	    1	      50 INACTIVE +ARCH/ORCL12/ONLINELOG/group_2.258.888049599
 1	    1	      50 INACTIVE +DATA/ORCL12/ONLINELOG/group_1.262.888049593
 1	    1	      50 INACTIVE +ARCH/ORCL12/ONLINELOG/group_1.257.888049595


Создание каталогов в ASM

$ cd ~/ . asm.sh

$ asmcmd

$ cd DATA

ASMCMD> mkdir COPY12
ASMCMD> cd COPY12
ASMCMD> mkdir DATAFILE
ASMCMD> mkdir TEMPFILE
ASMCMD> mkdir ONLINELOG
ASMCMD> cd ../../

ASMCMD> cd ARCH
ASMCMD> mkdir COPY12
ASMCMD> cd COPY12
ASMCMD> mkdir ONLINELOG
ASMCMD> mkdir ARCHIVELOG

ASMCMD> exit


$ source ~/.bash_profile


$ cd $ORACLE_HOME/scripts


$ vi duplicate-rman-script.rman

Данные задаются в соответствии запроса report shema; Идентификатор файлов данных (1,3,4….) см. в report shema;

RUN {
    set NEWNAME for DATAFILE 1 to '+DATA/COPY12/DATAFILE/system.258.887923593';
    set NEWNAME for DATAFILE 3 to '+DATA/COPY12/DATAFILE/sysaux.257.887923497';
    set NEWNAME for DATAFILE 4 to '+DATA/COPY12/DATAFILE/undotbs1.260.887923711';
    set NEWNAME for DATAFILE 6 to '+DATA/COPY12/DATAFILE/users.259.887923707';
    set NEWNAME for TEMPFILE 1 to '+DATA/COPY12/TEMPFILE/temp.265.887923853';

    DUPLICATE TARGET DATABASE TO COPY12
    # SKIP TABLESPACE DATA
    LOGFILE
GROUP 1 ('+ARCH/COPY12/ONLINELOG/group_1.257.888049595', '+DATA/COPY12/ONLINELOG/group_1.262.888049593') SIZE 52428800 REUSE,

GROUP 2 ('+ARCH/COPY12/ONLINELOG/group_2.258.888049599', '+DATA/COPY12/ONLINELOG/group_2.263.888049597') SIZE 52428800 REUSE,

GROUP 3 ('+ARCH/COPY12/ONLINELOG/group_3.259.888049605', '+DATA/COPY12/ONLINELOG/group_3.264.888049601') SIZE 52428800 REUSE;

}

Проверка синтаксиса созданного файла сценария

$ rman CHECKSYNTAX @duplicate-rman-script.rman

Выполнение скрипта резервного копирования

$ rman target [email protected] auxiliary [email protected] @duplicate-rman-script.rman

Если используется Oracle Catalog, команда может выглядеть следующим образом

$ rman catalog [email protected]

$ connect target sys/manager
$ connect auxiliary [email protected]

$ @duplicate-rman-script.rman

Завершилось без ошибок (с 3-го раза).


Проверяем результаты копирования

$ export ORACLE_SID=COPY12


SQL> select instance_name from v$instance;

INSTANCE_NAME
----------------
copy12


SQL> select status from v$instance;

STATUS
------------
OPEN