- 14 May, 2022
- 0 Comments
- 5 Mins Read
Duplicate Database Using RMAN Backup Set | Clone Database using RMAN
In this blog , we are going to see how to clone database using rman backup.
SOURCE SERVER
Take full db backup on source server
RMAN> RUN
{
ALLOCATE CHANNEL ch11 TYPE DISK MAXPIECESIZE 10G;
ALLOCATE CHANNEL ch12 TYPE DISK MAXPIECESIZE 10G;
ALLOCATE CHANNEL ch13 TYPE DISK MAXPIECESIZE 10G;
BACKUP
FORMAT '/data/rman/%d_D_%T_%u_s%s_p%p'
INCREMENTAL LEVEL 0 DATABASE
CURRENT CONTROLFILE
FORMAT '/data/rman/%d_C_%T_%u'
SPFILE
FORMAT '/data/rman/%d_S_%T_%u'
PLUS ARCHIVELOG
FORMAT '/data/rman/%d_A_%T_%u_s%s_p%p';
RELEASE CHANNEL ch11;
RELEASE CHANNEL ch12;
RELEASE CHANNEL ch13;
}
Move source db backup from source to target server
[oracle@prim rman]$ scp * [email protected]:/data/rman/ The authenticity of host '192.168.0.81 (192.168.0.81)' can't be established. ECDSA key fingerprint is SHA256:qgLbwdXhj9QeIn/Qf7D28RCyTq+Nys7mcWxcnk01bWk. ECDSA key fingerprint is MD5:60:fa:c6:91:81:51:54:5e:c4:0b:02:5f:48:6d:21:c0. Are you sure you want to continue connecting (yes/no)? yes Warning: Permanently added '192.168.0.81' (ECDSA) to the list of known hosts. [email protected]'s password: PRIM_A_20220514_4k0tg25s_s148_p1 100% 119MB 52.7M PRIM_A_20220514_4l0tg25s_s149_p1 100% 69MB 53.0M PRIM_A_20220514_4m0tg25s_s150_p1 100% 34MB 52.4M PRIM_A_20220514_4n0tg25t_s151_p1 100% 6409KB 45.8M PRIM_A_20220514_4o0tg25u_s152_p1 100% 2986KB 47.8M PRIM_A_20220514_570tg26v_s167_p1 100% 22KB 5.1M PRIM_C_20220514_550tg26t 100% 18MB 51.5M PRIM_D_20220514_4p0tg25v_s153_p1 100% 1379MB 51.0M PRIM_D_20220514_4q0tg25v_s154_p1 100% 798MB 53.1M PRIM_D_20220514_4r0tg25v_s155_p1 100% 240MB 56.0M PRIM_D_20220514_4s0tg267_s156_p1 100% 762MB 52.1M PRIM_D_20220514_4t0tg26f_s157_p1 100% 570MB 50.4M PRIM_D_20220514_4u0tg26j_s158_p1 100% 27MB 55.4M PRIM_D_20220514_4v0tg26k_s159_p1 100% 267MB 50.3M PRIM_D_20220514_500tg26l_s160_p1 100% 251MB 51.8M PRIM_D_20220514_510tg26o_s161_p1 100% 228MB 57.0M PRIM_D_20220514_520tg26q_s162_p1 100% 218MB 54.8M PRIM_D_20220514_530tg26q_s163_p1 100% 85MB 53.1M PRIM_D_20220514_540tg26s_s164_p1 100% 34MB 57.0M PRIM_S_20220514_560tg26u 100% 112KB 24.7M [oracle@prim rman]$ [oracle@prim rman]$
Target Server
Create pfile from source and edit to target
[oracle@test dbs]$ cat initdevdb.ora devdb.__data_transfer_cache_size=0 devdb.__db_cache_size=503316480 devdb.__inmemory_ext_roarea=0 devdb.__inmemory_ext_rwarea=0 devdb.__java_pool_size=16777216 devdb.__large_pool_size=16777216 *.__oracle_base='/data/app/oracle'# ORACLE_BASE set from environment devdb.__pga_aggregate_target=620756992 *.__reload_lsnr='0'# lreg reload listener devdb.__sga_target=922746880 devdb.__shared_io_pool_size=50331648 devdb.__shared_pool_size=318767104 devdb.__streams_pool_size=0 devdb.__unified_pga_pool_size=0 *._always_anti_join='CHOOSE' *._always_semi_join='CHOOSE' *._b_tree_bitmap_plans=TRUE *._bloom_serial_filter='ON' *._complex_view_merging=TRUE *._compression_compatibility='19.0.0' *._diag_adr_trace_dest='/data/app/oracle/diag/rdbms/devdb/devdb/trace' *._ds_xt_split_count=1 *._eliminate_common_subexpr=TRUE *._fast_full_scan_enabled=TRUE *._generalized_pruning_enabled=TRUE *._gs_anti_semi_join_allowed=TRUE *._improved_outerjoin_card=TRUE *._improved_row_length_enabled=TRUE *._index_join_enabled=TRUE *._key_vector_create_pushdown_threshold=20000 *._ksb_restart_policy_times='0','60','120','240'# internal update to set default *._left_nested_loops_random=TRUE *._mv_access_compute_fresh_data='ON' *._new_initial_join_orders=TRUE *._new_sort_cost_estimate=TRUE *._nlj_batching_enabled=1 *._optim_enhance_nnull_detection=TRUE *._optim_peek_user_binds=TRUE *._optimizer_ads_use_partial_results=TRUE *._optimizer_better_inlist_costing='ALL' *._optimizer_cbqt_or_expansion='ON' *._optimizer_cluster_by_rowid_control=129 *._optimizer_control_shard_qry_processing=65528 *._optimizer_cost_based_transformation='LINEAR' *._optimizer_cost_model='CHOOSE' *._optimizer_extended_cursor_sharing='UDO' *._optimizer_extended_cursor_sharing_rel='SIMPLE' *._optimizer_extended_stats_usage_control=192 *._optimizer_join_order_control=3 *._optimizer_max_permutations=2000 *._optimizer_mode_force=TRUE *._optimizer_native_full_outer_join='FORCE' *._optimizer_or_expansion='DEPTH' *._optimizer_proc_rate_level='BASIC' *._optimizer_system_stats_usage=TRUE *._optimizer_try_st_before_jppd=TRUE *._optimizer_use_cbqt_star_transformation=TRUE *._or_expand_nvl_predicate=TRUE *._ordered_nested_loop=TRUE *._parallel_broadcast_enabled=TRUE *._pivot_implementation_method='CHOOSE' *._pred_move_around=TRUE *._push_join_predicate=TRUE *._push_join_union_view=TRUE *._push_join_union_view2=TRUE *._px_dist_agg_partial_rollup_pushdown='ADAPTIVE' *._px_groupby_pushdown='FORCE' *._px_partial_rollup_pushdown='ADAPTIVE' *._px_shared_hash_join=FALSE *._px_wif_dfo_declumping='CHOOSE' *._sql_model_unfold_forloops='RUN_TIME' *._subquery_pruning_mv_enabled=FALSE *._table_scan_cost_plus_one=TRUE *._union_rewrite_for_gs='YES_GSET_MVS' *._unnest_subquery=TRUE *._use_column_stats_for_function=TRUE *._xt_sampling_scan_granules='ON' *.audit_file_dest='/data/app/oracle/admin/devdb/adump' *.audit_trail='DB' *.compatible='19.0.0' *.connection_brokers='((TYPE=DEDICATED)(BROKERS=1))','((TYPE=EMON)(BROKERS=1))'# connection_brokers default value *.control_files='/data/app/oracle/oradata/DEVDB/control01.ctl','/data/app/oracle/oradata/DEVDB/control02.ctl','/data/app/oracle/oradata/DEVDB/control03.ctl'#Restore Controlfile *.core_dump_dest='/data/app/oracle/diag/rdbms/devdb/devdb/cdump' *.cpu_count=1 *.cpu_min_count='1' *.db_block_size=8192 *.db_file_name_convert='/data/app/oracle/oradata/PRIM/','/data/app/oracle/oradata/DEVDB/' *.db_name='DEVDB' *.diagnostic_dest='/data/app/oracle' *.dispatchers='(PROTOCOL=TCP) (SERVICE=devdbXDB)' *.enable_pluggable_database=TRUE *.local_listener='(ADDRESS=(PROTOCOl=TCP)(HOST=192.168.0.81)(PORT=1522))' *.log_archive_dest_1='LOCATION=/data/archive' *.log_buffer=7136K# log buffer update *.log_file_name_convert='/data/app/oracle/oradata/PRIM/','/data/app/oracle/oradata/DEVDB/' *.memory_target=1472M *.nls_language='AMERICAN' *.nls_territory='AMERICA' *.open_cursors=500 *.optimizer_mode='ALL_ROWS' *.plsql_warnings='DISABLE:ALL'# PL/SQL warnings at init.ora *.processes=400 *.query_rewrite_enabled='TRUE' *.remote_login_passwordfile='EXCLUSIVE' *.result_cache_max_size=3776K *.service_names='test.learomate.org' *.undo_tablespace='UNDOTBS1'
Create required directory structure on target server
/data/app/oracle/oradata/DEVDB/ /data/app/oracle/admin/devdb/adump
Start target database in nomount state with pfile
SQL> startup nomount pfile='initdevdb.ora'; ORACLE instance started. Total System Global Area 1543501032 bytes Fixed Size 9135336 bytes Variable Size 889192448 bytes Database Buffers 637534208 bytes Redo Buffers 7639040 bytes
Connect to RMAN and run duplicate command
[oracle@test dbs]$ rman auxiliary / Recovery Manager: Release 19.0.0.0.0 - Production on Sat May 14 20:30:36 2022 Version 19.3.0.0.0 Copyright (c) 1982, 2019, Oracle and/or its affiliates. All rights reserved. connected to auxiliary database: DEVDB (not mounted) RMAN> DUPLICATE DATABASE TO devdb BACKUP LOCATION '/data/rman/' NOFILENAMECHECK;
Post Cloning activity
Add tns entry
Veryfy DB status and DBID
SQL> select name,open_mode,dbid from v$database; NAME OPEN_MODE DBID --------- -------------------- ---------- DEVDB READ WRITE 1009427986