Survey
* Your assessment is very important for improving the workof artificial intelligence, which forms the content of this project
Download IntroToDBA
Document related concepts
no text concepts found
Transcript
Introduction to Oracle Administration Glen Parker http://presentation.glenparker.net University of South Florida BbWorld 07 Boston, MA Today • Rename presentation “Intro to Backup & Recovery” • Backup strategy • Backup & Recovery Example http://presentation.glenparker.net RMAN Backup Hot Backups Cold Backups Do you Archivelog ? SQL> archive log list Database log mode Automatic archival Archive Mode Enabled - or Database log mode Automatic archival No Archive Mode Disabled Start Archivelog Today create pfile from spfile; alter system set log_archive_start=TRUE scope=spfile; alter system set log_archive_dest_1=<path> scope=spfile; shutdown immediate;startup mountalter database archivelog;alter database open; RMAN Backup Hot Backups Cold Backups RMAN ? Control File Repository Simple One Database No Stored Scripts Fewer Recovery Options Complex Many databases N+1 Backup problem Stored Scripts MAN Prerequisites Database in Archivelog mode A separate storage location from the production database Multiplexed Controlfiles RMAN Setup rman TARGET sys/password@SID CONFIGURE CHANNEL DEVICE TYPE DISK MAXPIECESIZE = 2G FORMAT '/nfs/backup/SID/ora_df%t_s%s_s%p'; CONFIGURE RETENTION POLICY TO RECOVERY WINDOW OF 30 DAYS; RMAN Setup rman TARGET sys/password@SID CONFIGURE CONTROLFILE AUTOBACKUP ON; CONFIGURE CONTROLFILE AUTOBACKUP FORMAT FOR DEVICE TYPE DISK TO '/nfs/backup/SID/controlfile%F'; RMAN Backup rman TARGET sys/password@SID RMAN> BACKUP INCREMENTAL LEVEL 0 DATABASE SPFILE PLUS ARCHIVELOG ; RMAN Backup rman TARGET sys/password@SID RMAN> BACKUP INCREMENTAL LEVEL 1 CUMULATIVE DATABASE SPFILE PLUS ARCHIVELOG; RMAN Automation # crontab -l 30 1 * * 0 /oracle/backup/SID_levelzero.sh 30 1 * * 1-6 /oracle/backup/SID_levelone.sh RMAN Recovery rman TARGET sys/password@SID RMAN> STARTUP FORCE MOUNT; RESTORE DATABASE; RECOVER DATABASE; ALTER DATABASE OPEN; Result: No Data Loss Practice Recovery Often Nuff’ Said Questions Thank You ! ! Glen Parker [email protected] http://presentation.glenparker.net Online Resources http://scholar.com Search: ‘raistlinxw’ & ‘bbworld07’ Start on boot Solaris - /var/opt/oracle/oratab Linux - /etc/oratab # cat oratab SID0:/usr/local/oracle/base/product/9.2:Y # cat /etc/rc3.d/S99oracle $ORACLE_HOME/bin/dbstart $ORACLE_HOME/bin/lsnrctl start login.sql export SQLPATH = $ORACLE_HOME/sqlpath cat $SQLPATH/login.sql define _editor=vi set serveroutput on size 1000000 set trimspool on set long 5000 set linesize 100 set pagesize 0 set echo off Logs SQL> show parameter dump_dest - Background (alert.log) # grep ORA alert.log - Core - User Blackboard Support Point in Time snapshot Database most expensive queries cd /usr/local/blackboard/tools/perf_reports ./run_all.sh dbms_stats sqlplus system/password SQL> exec dbms_stats.gather_schema_stats( OWNER=>’bb_bb60’, METHOD_OPT=>’for all indexed columns size auto CASCADE=>true ); Statspack setup SQL> @?/rdbms/admin/spcreate user: perfstat Statspack Snapshot sqlplus perfstat/password SQL> exec statspack.snap 15 minutes apart Statspack Report sqlplus perfstat/password SQL> @?/rdbms/admin/spreport Questions Thank You ! ! Glen Parker [email protected] http://presentation.glenparker.net Online Resources http://scholar.com Search: ‘raistlinxw’ & ‘bbworld07’
Related documents