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Sunday, 25 November 2012

Oracle 11g single instance archivelog mode on ASM



Oracle 11g- Single instance  archivelog mode on ASM 



Oracle 11gR2 archivelog mode on ASM
Oracle 11gR2 archivelog mode

ASMCMD> lsdg
State    Type    Rebal  Sector  Block       AU  Total_MB  Free_MB  Req_mir_free_MB  Usable_file_MB  Offline_disks  Voting_files  Name
MOUNTED  NORMAL  N         512   4096  1048576      9216     5657              896            2380              0             N  DATA/
MOUNTED  EXTERN  N         512   4096  1048576      9216     8988                0            8988              0             N  FRA/


ASMCMD> cd FRA

ASMCMD> mkdir Archive

ASMCMD> ls -lt
Type       Redund  Striped  Time             Sys  Name
                                             Y    ONLINELOG/
                                             N    Archive/
                                             Y    AUTOBACKUP/
                                             N    redo03b.log => +FRA/ORCL/ONLINELOG/group_3.257.741266861
                                             N    redo02b.log => +FRA/ORCL/ONLINELOG/group_2.258.741267209
                                             N    redo01b.log => +FRA/ORCL/ONLINELOG/group_1.256.741266959

ASMCMD> pwd
+FRA/ORCL/Archive


[oracle@oel5u4-orcl ~] . oraenv
ORACLE_SID = [orcl] ?
The Oracle base for ORACLE_HOME=/u01/app/oracle/product/11.2.0/dbhome_1 is /u01/app/oracle

sqlplus / as sysdba

SQL*Plus: Release 11.2.0.1.0 Production on Sat Nov 24 19:43:11 2012

Copyright (c) 1982, 2009, Oracle.  All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options


SQL> alter system set LOG_ARCHIVE_FORMAT ='Log%s_%t_%r.Arc' scope=spfile;
System altered.

SQL> alter system set log_archive_dest_1='location=+FRA/ORCL/Archive' SCOPE=SPFILE;
System altered.

SQL> alter system set log_archive_start=TRUE SCOPE=SPFILE;  --- no need in Oracle 11gr2
System altered.

SQL> alter system reset log_archive_start scope=spfile sid='*';
System altered.

SQL> shutdown immediate ;
Database closed.
Database dismounted.
ORACLE instance shut down.

SQL> startup mount;
ORACLE instance started.

Total System Global Area  472887296 bytes
Fixed Size                  1337296 bytes
Variable Size             360712240 bytes
Database Buffers          104857600 bytes
Redo Buffers                5980160 bytes
Database mounted.

SQL> alter database archivelog;
Database altered.

SQL> archive log list
Database log mode              Archive Mode
Automatic archival             Enabled
Archive destination            +FRA/orcl/archive
Oldest online log sequence     32
Next log sequence to archive   34
Current log sequence           34

SQL> alter database open ;
Database altered.

SQL> alter system switch logfile;
System altered.

SQL> /
System altered.
SQL> /
System altered.


SQL> exit
Disconnected from Oracle Database 11g Enterprise Edition Release 11.2.0.1.0 - Production
With the Partitioning, Automatic Storage Management, OLAP, Data Mining
and Real Application Testing options

[oracle@oel5u4-orcl ~] . oraenv
ORACLE_SID = [orcl] ? +ASM
The Oracle base for ORACLE_HOME=/u01/app/oracle/product/11.2.0/grid is /u01/app/oracle

[oracle@oel5u4-+ASM ~] asmcmd -p
ASMCMD [+] > cd FRA
ASMCMD [+FRA] > ls -lt
Type  Redund  Striped  Time             Sys  Name
                                        Y    ORCL/
ASMCMD [+FRA] > cd ORCL
ASMCMD [+FRA/ORCL] > cd Archive
ASMCMD [+FRA/ORCL/Archive] > ls -lt
Type        Redund  Striped  Time             Sys  Name
                                              N    log36_1_731227289.arc => +FRA/ORCL/ARCHIVELOG/2012_11_24/thread_1_seq_36.262.800222675
                                              N    log35_1_731227289.arc => +FRA/ORCL/ARCHIVELOG/2012_11_24/thread_1_seq_35.261.800222653
                                              N    log34_1_731227289.arc => +FRA/ORCL/ARCHIVELOG/2012_11_24/thread_1_seq_34.260.800222627
ASMCMD [+FRA/ORCL/Archive] >


5 comments:

Anuj Singh said...

-bash-3.2$ cat initvihaan.ora
vihaan.__db_cache_size=415236096
vihaan.__java_pool_size=4194304
vihaan.__large_pool_size=8388608
vihaan.__oracle_base='/u01/app/oracle'#ORACLE_BASE set from environment
vihaan.__pga_aggregate_target=314572800
vihaan.__sga_target=591396864
vihaan.__shared_io_pool_size=0
vihaan.__shared_pool_size=150994944
vihaan.__streams_pool_size=0
*.audit_file_dest='/u01/app/oracle/admin/vihaan/adump'
*.audit_trail='db'
*.compatible='11.2.0.4.0'
*.control_files='+DATA/vihaan/control01.ctl','+DATA/vihaan/control02.ctl'
*.db_block_size=8192
*.db_domain=''
*.db_name='vihaan'
*.diagnostic_dest='/u01/app/oracle'
*.dispatchers='(PROTOCOL=TCP) (SERVICE=vihaanXDB)'
*.memory_target=905969664
*.open_cursors=300
*.processes=150
*.remote_login_passwordfile='EXCLUSIVE'
*.undo_tablespace='UNDOTBS1'
*.db_recovery_file_dest_size=2147483648
*.db_recovery_file_dest='+RECOVERY'
*.log_archive_dest_1='location=+RECOVERY'
*.log_archive_format='Log%s_%t_%r.Arc'

Anuj Singh said...

SQL> alter system set log_archive_dest_1='location=+DATA' SCOPE=SPFILE;

SQL> shutdown immediate ;
Database closed.
Database dismounted.
ORACLE instance shut down.


SQL> startup mount ;

SQL> alter database archivelog;

Database altered.

SQL> alter database open ;

SQL> archive log list ;
Database log mode Archive Mode
Automatic archival Enabled
Archive destination +DATA
Oldest online log sequence 63
Next log sequence to archive 65
Current log sequence 65

Anuj Singh said...

-bash-3.2$ !sql
sqlplus / as sysdba

SQL*Plus: Release 11.2.0.4.0 Production on Sun Mar 20 14:39:27 2016

Copyright (c) 1982, 2013, Oracle. All rights reserved.


Connected to:
Oracle Database 11g Enterprise Edition Release 11.2.0.4.0 - 64bit Production
With the Partitioning, OLAP, Data Mining and Real Application Testing options


SQL> alter system set LOG_ARCHIVE_FORMAT ='Log%s_%t_%r.Arc' scope=spfile;

System altered.

SQL> alter system set log_archive_dest_1='location=/u01/app/oracle/Archive' SCOPE=SPFILE;

System altered.

SQL> shutdown immediate ;
Database closed.
Database dismounted.
ORACLE instance shut down.
SQL> startup mount ;
ORACLE instance started.

Total System Global Area 680607744 bytes
Fixed Size 2256352 bytes
Variable Size 457179680 bytes
Database Buffers 218103808 bytes
Redo Buffers 3067904 bytes
Database mounted.
SQL> alter database archivelog;

Database altered.

SQL> alter database open ;

Database altered.


SQL> archive log list
Database log mode Archive Mode
Automatic archival Enabled
Archive destination /u01/app/oracle/Archive
Oldest online log sequence 1
Next log sequence to archive 3
Current log sequence 3

Anuj Singh said...

The following variables can be used in the format:

%s log sequence number
%S log sequence number, zero filled
%tthread number
%Tthread number, zero filled
%a activation ID
%d database ID
%r resetlogs ID that ensures unique names are constructed for the archived log files across multiple incarnations of the database.

Anuj Singh said...

for disk group

select listagg (name, ' | ') within group (order by name) " DiskGroupName" from v$asm_diskgroup;

DiskGroupName
--------------------------------------------------------------------------------
DATA | LOG |

Oracle DBA

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