The database is called "asanga" and will retain the same name when converted to RAC.
1. Create a pfile of the single instance database. The pfile entries are shown below
more pfile.ora *.audit_file_dest='/opt/app/oracle/admin/asanga/adump' *.audit_trail='NONE' *.compatible='11.2.0.4.0' *.db_block_size=8192 *.db_create_file_dest='+DATA' *.db_domain='' *.db_name='ASANGA' *.db_recovery_file_dest_size=5218762752 *.db_recovery_file_dest='+FLASH' *.diagnostic_dest='/opt/app/oracle' *.dispatchers='(PROTOCOL=TCP) (SERVICE=asangaXDB)' *.open_cursors=300 *.pga_aggregate_target=524288000 *.processes=3000 *.remote_login_passwordfile='EXCLUSIVE' *.sessions=4524 *.sga_target=2147483648 *.undo_tablespace='UNDOTBS1'2. Create the adump directories in all nodes of the cluster (in this case it is a two node cluster)
mkdir -p /opt/app/oracle/admin/asanga/adump3. Copy the pfile created earlier to one of the RAC nodes and restore the datababase.
SQL> startup nomount pfile='/home/oracle/backup/pfile.ora';
SQL> create spfile from pfile='/home/oracle/backup/pfile.ora';
SQL> startup force nomount;
RMAN> restore controlfile from '/home/oracle/backup/ctlbkp04qfl69p_1_1.ctl';
Starting restore at 28-AUG-15
using target database control file instead of recovery catalog
allocated channel: ORA_DISK_1
channel ORA_DISK_1: SID=2275 device type=DISK
channel ORA_DISK_1: restoring control file
channel ORA_DISK_1: restore complete, elapsed time: 00:00:07
output file name=+DATA/asanga/controlfile/current.270.888927491
output file name=+FLASH/asanga/controlfile/current.447.888927493
Finished restore at 28-AUG-15
RMAN> alter database mount;
RMAN> catalog start with '/home/oracle/backup/';
RMAN> run {
2> restore database;
3> recover database;
4> }
Starting restore at 28-AUG-15
using channel ORA_DISK_1
channel ORA_DISK_1: starting datafile backup set restore
channel ORA_DISK_1: specifying datafile(s) to restore from backup set
channel ORA_DISK_1: restoring datafile 00001 to +DATA/asanga/datafile/system.309.888838053
channel ORA_DISK_1: restoring datafile 00002 to +DATA/asanga/datafile/sysaux.308.888838053
channel ORA_DISK_1: restoring datafile 00003 to +DATA/asanga/datafile/undotbs1.307.888838053
channel ORA_DISK_1: restoring datafile 00004 to +DATA/asanga/datafile/users.310.888838053
channel ORA_DISK_1: reading from backup piece /home/oracle/backup/full_bkp_ASANGA_20150827_02qfl697_1_1
channel ORA_DISK_1: piece handle=/home/oracle/backup/full_bkp_ASANGA_20150827_02qfl697_1_1 tag=FULL_BKP
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:25
Finished restore at 28-AUG-15
Starting recover at 28-AUG-15
using channel ORA_DISK_1
starting media recovery
channel ORA_DISK_1: starting archived log restore to default destination
channel ORA_DISK_1: restoring archived log
archived log thread=1 sequence=2
channel ORA_DISK_1: reading from backup piece /home/oracle/backup/full_arc_ASANGA_20150827_03qfl69n_1_1
channel ORA_DISK_1: piece handle=/home/oracle/backup/full_arc_ASANGA_20150827_03qfl69n_1_1 tag=FULL_ARC_BKP
channel ORA_DISK_1: restored backup piece 1
channel ORA_DISK_1: restore complete, elapsed time: 00:00:02
archived log file name=+FLASH/asanga/archivelog/2015_08_28/thread_1_seq_2.444.888927577 thread=1 sequence=2
channel default: deleting archived log(s)
archived log file name=+FLASH/asanga/archivelog/2015_08_28/thread_1_seq_2.444.888927577 RECID=3 STAMP=888927577
unable to find archived log
archived log thread=1 sequence=3
RMAN-00571: ===========================================================
RMAN-00569: =============== ERROR MESSAGE STACK FOLLOWS ===============
RMAN-00571: ===========================================================
RMAN-03002: failure of recover command at 08/28/2015 12:19:38
RMAN-06054: media recovery requesting unknown archived log for thread 1 with sequence 3 and starting SCN of 1483282
RMAN> alter database open resetlogs;
database opened4. Shutdown and restart the database to see if it opens without any issues.5. The single instance will have only one redo thread. Add anther redo thread (or more if RAC has more nodes) and enable it.
SQL> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIM NEXT_CHANGE# NEXT_TIME
---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- --------- ------------ ---------
1 1 1 52428800 512 2 NO CURRENT 1483283 28-AUG-15 2.8147E+14
2 1 0 52428800 512 2 YES UNUSED 0 0
3 1 0 52428800 512 2 YES UNUSED 0 0
alter database add logfile thread 2 group 4 ('+DATA','+FLASH') size 50m ;
alter database add logfile thread 2 group 5 ('+DATA','+FLASH') size 50m ;
alter database add logfile thread 2 group 6 ('+DATA','+FLASH') size 50m ;
SQL> alter database enable public thread 2;
Database altered.
SQL> select * from v$log;
GROUP# THREAD# SEQUENCE# BYTES BLOCKSIZE MEMBERS ARC STATUS FIRST_CHANGE# FIRST_TIM NEXT_CHANGE# NEXT_TIME
---------- ---------- ---------- ---------- ---------- ---------- --- ---------------- ------------- --------- ------------ ---------
1 1 1 52428800 512 2 NO CURRENT 1483283 28-AUG-15 2.8147E+14
2 1 0 52428800 512 2 YES UNUSED 0 0
3 1 0 52428800 512 2 YES UNUSED 0 0
4 2 1 52428800 512 2 YES INACTIVE 1484502 28-AUG-15 1484512 28-AUG-15
5 2 0 52428800 512 2 YES UNUSED 0 0
6 2 0 52428800 512 2 YES UNUSED 0 0
6 rows selected.6. The single instance would have had one undo tablespace. Create undo tablespace for each additional instancecreate undo tablespace UNDOTBS2 datafile '+DATA(datafile)' SIZE 600M AUTOEXTEND ON NEXT 64M MAXSIZE UNLIMITED;
7. Create a pfile from the spfile and edit it by removing the *.undo_tablespace='UNDOTBS1' and add instance specific entries
*.cluster_database_instances=2 *.cluster_database=true asanga1.instance_number=1 asanga2.instance_number=2 asanga1.thread=1 asanga2.thread=2 asanga1.undo_tablespace='UNDOTBS1' asanga2.undo_tablespace='UNDOTBS2'Also make sure log archive format has thread number
log_archive_format string %t_%s_%r.dbf8. Shutdown the database and copy the new pfile to all nodes and start each instance using the pfile.
[oracle@rhel6m1 ~]$ export ORACLE_SID=asanga1 [oracle@rhel6m1 backup]$ sqlplus / as sysdba SQL> startup pfile='/home/oracle/backup/initasanga.ora'; ORACLE instance started. Total System Global Area 2137886720 bytes Fixed Size 2254952 bytes Variable Size 1811941272 bytes Database Buffers 318767104 bytes Redo Buffers 4923392 bytes Database mounted. Database opened. SQL> select instance_name,status from v$instance; INSTANCE_NAME STATUS ---------------- ------------ asanga1 OPEN [oracle@rhel6m2 ~]$ export ORACLE_SID=asanga2 [oracle@rhel6m2 ~]$ sqlplus / as sysdba SQL> startup pfile='/home/oracle/initasanga.ora'; ORACLE instance started. Total System Global Area 2137886720 bytes Fixed Size 2254952 bytes Variable Size 1811941272 bytes Database Buffers 318767104 bytes Redo Buffers 4923392 bytes Database mounted. Database opened. SQL> select instance_name,status from v$instance; INSTANCE_NAME STATUS ---------------- ------------ asanga2 OPEN SQL> select HOST_NAME,INSTANCE_NUMBER,INSTANCE_NAME,STATUS,THREAD# from gv$instance; HOST_NAME INSTANCE_NUMBER INSTANCE_NAME STATUS THREAD# ------------------------- --------------- ---------------- ------------ ---------- rhel6m2.domain.net 2 asanga2 OPEN 2 rhel6m1.domain.net 1 asanga1 OPEN 19. Once confirmed that all instances are opening without any issue, create a spfile in a shared location.
SQL> create spfile='+data' from pfile='/home/oracle/backup/initasanga.ora';Make an alias in ASM for the spfile
ASMCMD> mkalias spfile.283.888929113 spfileasanga.ora
ASMCMD> ls -l
Type Redund Striped Time Sys Name
PARAMETERFILE UNPROT COARSE AUG 28 12:00:00 Y spfile.283.888929113
N spfileasanga.ora => +DATA/ASANGA/PARAMETERFILE/spfile.283.888929113Create instance specific pfile with entries to the spfile alias. Also remove the spfile created earlier from the local nodecat initasanga1.ora spfile='+DATA/ASANGA/PARAMETERFILE/spfileasanga.ora' scp initasanga1.ora rhel6m2:`pwd`/initasanga2.ora10. Create oracle password files for each node
11. Run the following script to create cluster related views
@?/rdbms/admin/catclust.sqlAfter running this scrip the database registry will show RAC component entry
COMP_ID COMP_NAME STATUS VERSION ---------- ----------------------------------- ---------- ---------- RAC Oracle Real Application Clusters VALID 11.2.0.4.012.Add the database to the cluster
srvctl add database -d asanga -o $ORACLE_HOME -p "+DATA/ASANGA/PARAMETERFILE/spfileasanga.ora" srvctl add instance -d asanga -i asanga1 -n rhel6m1 srvctl add instance -d asanga -i asanga2 -n rhel6m2 [oracle@rhel6m1 dbs]$ srvctl config database -d asanga -a Database unique name: asanga Database name: rhel6m1 Oracle home: /opt/app/oracle/product/11.2.0/dbhome_4 Oracle user: oracle Spfile: +DATA/ASANGA/PARAMETERFILE/spfileasanga.ora Domain: local Start options: open Stop options: immediate Database role: PRIMARY Management policy: AUTOMATIC Server pools: asanga Database instances: asanga1,asanga2 Disk Groups: Mount point paths: Services: Type: RAC Database is enabled Database is administrator managed13. Shutdown both instances and start the database using srvctl.
srvctl start database -d asanga srvctl status database -d asanga Instance asanga1 is running on node rhel6m1 Instance asanga2 is running on node rhel6m2 srvctl config database -d asanga -a Database unique name: asanga Database name: rhel6m1 Oracle home: /opt/app/oracle/product/11.2.0/dbhome_4 Oracle user: oracle Spfile: +DATA/ASANGA/PARAMETERFILE/spfileasanga.ora Domain: Start options: open Stop options: immediate Database role: PRIMARY Management policy: AUTOMATIC Server pools: asanga Database instances: asanga1,asanga2 Disk Groups: DATA,FLASH Mount point paths: Services: Type: RAC Database is enabled Database is administrator managed14. Verify the database is also listed as a cluster resource
crsctl stat res ora.asanga.db NAME=ora.asanga.db TYPE=ora.database.type TARGET=ONLINE , ONLINE STATE=ONLINE on rhel6m1, ONLINE on rhel6m2
