{"id":11460,"date":"2018-07-20T09:50:06","date_gmt":"2018-07-20T07:50:06","guid":{"rendered":"https:\/\/www.dbi-services.com\/blog\/new-features-and-known-issues-with-rman-tool-on-oracle-database-12-1-0-2\/"},"modified":"2018-07-20T09:50:06","modified_gmt":"2018-07-20T07:50:06","slug":"new-features-and-known-issues-with-rman-tool-on-oracle-database-12-1-0-2","status":"publish","type":"post","link":"https:\/\/www.dbi-services.com\/blog\/new-features-and-known-issues-with-rman-tool-on-oracle-database-12-1-0-2\/","title":{"rendered":"New features and known issues with RMAN tool on Oracle database 12.1.0.2"},"content":{"rendered":"

Oracle Database 12c has new enhancements and additions in Recovery Manager (RMAN).
\nThe RMAN tool continues to enhance and extend the reliability, efficiency, and availability of Oracle Database Backup and Recovery.
\nBelow, I will mention couple of new features for the RMAN duplicate command, but also how to avoid issues that can happen on the creation of the temporary files.<\/p>\n

FEATURES<\/strong>:<\/p>\n

<INFO>Using BACKUPSET clause :<\/p>\n

In previous releases, active duplicates were performed using implicit image copy backups, transferred directly to the destination server. From 12.1 it is also possible to perform active duplicates using backup sets by including the USING BACKUPSET clause.
\nCompared to the other method (image copy backups), the unused block compression associated with a backup set reduces the amount of the data pulled across the network.<\/p>\n

<INFO>Using SECTION SIZE clause:<\/p>\n

The section size clause takes into account the parallel degree and the size of the datafile that will be used.
\nIn my case I have configured the parallel degree to 6:<\/p>\n

RMAN> CONFIGURE DEVICE TYPE DISK PARALLELISM 6 BACKUP TYPE TO BACKUPSET;\n\nnew RMAN configuration parameters:\nCONFIGURE DEVICE TYPE DISK PARALLELISM 6 BACKUP TYPE TO BACKUPSET;\nnew RMAN configuration parameters are successfully stored\n\nStarting restore at 19-JUL-2018 14:11:06\nusing channel ORA_AUX_DISK_1\nusing channel ORA_AUX_DISK_2\nusing channel ORA_AUX_DISK_3\nusing channel ORA_AUX_DISK_4\nusing channel ORA_AUX_DISK_5\nusing channel ORA_AUX_DISK_6<\/pre>\n
channel ORA_AUX_DISK_3: using network backup set from service PROD2_SITE1\nchannel ORA_AUX_DISK_3: specifying datafile(s) to restore from backup set\nchannel ORA_AUX_DISK_3: restoring datafile 00005 to \/u02\/oradata\/PROD\/data.dbf\nchannel ORA_AUX_DISK_3: restoring section 2 of 7\n\n------\nchannel ORA_AUX_DISK_2: starting datafile backup set restore\nchannel ORA_AUX_DISK_2: using network backup set from service PROD2_SITE1\nchannel ORA_AUX_DISK_2: specifying datafile(s) to restore from backup set\nchannel ORA_AUX_DISK_2: restoring datafile 00005 to \/u02\/oradata\/PROD\/data.dbf\nchannel ORA_AUX_DISK_2: restoring section 7 of 7<\/pre>\n
 <\/p>\n
<INFO>The 2 clauses “USING BACKUPSET” and “SECTION SIZE” cannot be used without “ACTIVE DATABASE” and can be integrated successfully into the standby creation :<\/p>\n
oracle@dbisrv01:\/home\/oracle\/ [PROD2] rman target sys\/password@PROD2_SITE1 auxiliary sys\/password@PROD2_SITE2\n\nRecovery Manager: Release 12.1.0.2.0 - Production on Sun Jul 22 13:17:14 2018\n\nCopyright (c) 1982, 2014, Oracle and\/or its affiliates.  All rights reserved.\n\nconnected to target database: PROD2 (DBID=1633730013)\nconnected to auxiliary database: PROD2 (not mounted)\n\nRMAN> duplicate target database for standby from active database using backupset section size 500m nofilenamecheck;<\/pre>\n
Starting Duplicate Db at 22-JUL-2018 13:17:21\nusing target database control file instead of recovery catalog\nallocated channel: ORA_AUX_DISK_1\nchannel ORA_AUX_DISK_1: SID=249 device type=DISK\nallocated channel: ORA_AUX_DISK_2\nchannel ORA_AUX_DISK_2: SID=13 device type=DISK\nallocated channel: ORA_AUX_DISK_3\nchannel ORA_AUX_DISK_3: SID=250 device type=DISK\nallocated channel: ORA_AUX_DISK_4\nchannel ORA_AUX_DISK_4: SID=14 device type=DISK\nallocated channel: ORA_AUX_DISK_5\nchannel ORA_AUX_DISK_5: SID=251 device type=DISK\nallocated channel: ORA_AUX_DISK_6\nchannel ORA_AUX_DISK_6: SID=15 device type=DISK\n\ncontents of Memory Script:\n{\n   backup as copy reuse\n   targetfile  '\/u01\/app\/oracle\/product\/12.1.0\/dbhome_1\/dbs\/orapwPROD2' auxiliary format\n '\/u01\/app\/oracle\/product\/12.1.0\/dbhome_1\/dbs\/orapwPROD2'   ;\n}\nexecuting Memory Script\n----------------------------\nexecuting Memory Script\n\ndatafile 1 switched to datafile copy\ninput datafile copy RECID=1 STAMP=982156757 file name=\/u02\/oradata\/PROD2\/system01.dbf\ndatafile 3 switched to datafile copy\ninput datafile copy RECID=2 STAMP=982156757 file name=\/u02\/oradata\/PROD2\/sysaux01.dbf\ndatafile 4 switched to datafile copy\ninput datafile copy RECID=3 STAMP=982156757 file name=\/u02\/oradata\/PROD2\/undotbs01.dbf\ndatafile 5 switched to datafile copy\ninput datafile copy RECID=4 STAMP=982156757 file name=\/u02\/oradata\/PROD2\/data.dbf\ndatafile 6 switched to datafile copy\ninput datafile copy RECID=5 STAMP=982156757 file name=\/u02\/oradata\/PROD2\/users01.dbf\nFinished Duplicate Db at 22-JUL-2018 13:19:21\n\nRMAN> exit<\/pre>\n
<INFO>Check the status of the PRIMARY & STANDBY database<\/p>\n
SQL> select name,db_unique_name,database_role from v$database;\n\nNAME      DB_UNIQUE_NAME                 DATABASE_ROLE\n--------- ------------------------------ ----------------\nPROD2     PROD2_SITE1                    PRIMARY\n\n\nSQL> select name,db_unique_name,database_role from v$database;\n\nNAME      DB_UNIQUE_NAME                 DATABASE_ROLE\n--------- ------------------------------ ----------------\nPROD2     PROD2_SITE2                    PHYSICAL STANDBY<\/pre>\n
ISSUES<\/strong> :
\n<WARN>Duplicating on 12cR1, creation of the temp files is not handled correctly.
\nDuplicating from active or from backup, using Oracle 12cR1, you can run into some issues with the temporary files.<\/p>\n
oracle@dbisrv02:\/u01\/app\/oracle\/product\/12.1.0\/dbhome_1\/dbs\/ [PROD] rman target sys\/pwd00@<TNS_NAME_TARGET> auxiliary sys\/pwd00@<TNS_NAME_AUXILIARY> \nRecovery Manager: Release 12.1.0.2.0 - Production on Thu Jul 19 13:31:20 2018\n\nCopyright (c) 1982, 2014, Oracle and\/or its affiliates.  All rights reserved.\n\nconnected to target database: <TNS_NAME_TARGET> (DBID=xxxxxxxxxx)\nconnected to auxiliary database: <TNS_NAME_AUXILIARY> (not mounted)\n\nduplicate target database to <TNS_NAME_AUXILIARY> from active database using backupset section size 500m;\n\n----------------------------------------\ncontents of Memory Script:\n{\n   Alter clone database open resetlogs;\n}\nexecuting Memory Script\n\ndatabase opened\nFinished Duplicate Db at 19-JUL-2018 14:26:09\n<\/pre>\n
<INFO>Querying the v$tempfile will not reveal any error<\/p>\n
SQL> select file#,name,status from v$tempfile;\n\n     FILE# NAME                           STATUS\n---------- ------------------------------ -------\n         1 \/u02\/oradata\/<AUXILIARY>\/temp01.dbf   ONLINE<\/pre>\n
<INFO>But querying the dba_temp_files, or run some transactions against your database that need usage of the temporary tablespace, you will got :<\/p>\n
SQL> select * from dba_temp_files;\nselect * from dba_temp_files\n              *\nERROR at line 1:\nORA-01187: cannot read from file  because it failed verification tests\nORA-01110: data file 201: '\/u02\/oradata\/<AUXILIARY>\/temp01.dbf'<\/pre>\n
Solution1 <\/strong>: Drop and recreate your temporary tablespace(s) manually. Could be difficult if you have several of them, OR
\nSolution2<\/strong> : Drop temp files from your <to_be_cloned_DB>, on the OS side, before launching the duplicate. For more details you can consult this note from MOS :\u00a0 2250889.1<\/strong><\/p>\n
SQL> col TABLESPACE_NAME format a50;\nSQL> col file_name format a50;\nSQL> select file_name,TABLESPACE_NAME from dba_temp_files;\n\nFILE_NAME                                          TABLESPACE_NAME\n-------------------------------------------------- --------------------------------------------------\n\/u02\/oradata\/<AUXILIARY>\/temp01.dbf                       TEMP\n\nSQL>startup nomount;\n\nrm -rf \/u02\/oradata\/<AUXILIARY>\/temp01.dbf<\/pre>\n
 <\/p>\n
oracle@dbisrv02:\/u01\/app\/oracle\/product\/12.1.0\/dbhome_1\/dbs\/ [PROD] rman target sys\/pwd00@<TNS_NAME_TARGET> auxiliary sys\/pwd00@<TNS_NAME_AUXILIARY> \nRecovery Manager: Release 12.1.0.2.0 - Production on Thu Jul 19 13:31:20 2018\n\nCopyright (c) 1982, 2014, Oracle and\/or its affiliates.  All rights reserved.\n\nconnected to target database: <TNS_NAME_TARGET> (DBID=xxxxxxxxxx)\nconnected to auxiliary database: <TNS_NAME_AUXILIARY> (not mounted)\n\nduplicate target database to <TNS_NAME_AUXILIARY> from active database using backupset section size 500m;<\/pre>\n
At then end of the duplicate action, you should be able to use the database without any action performed against temp files :<\/p>\n
SQL> select file#,name,status from v$tempfile;\n\n     FILE# NAME                           STATUS\n---------- ------------------------------ -------\n         1 \/u02\/oradata\/<AUXILIARY>\/temp01.dbf   ONLINE<\/pre>\n
Additionally, if you are running your auxiliary DB using the Oracle Grid Infra, you need to remove it from Grid during your actions and add again once you finished.<\/p>\n
SQL> alter system set db_unique_name='PROD_SITE2' scope=spfile;\nalter system set db_unique_name='PROD_SITE2' scope=spfile\n*\nERROR at line 1:\nORA-32017: failure in updating SPFILE\nORA-65500: could not modify DB_UNIQUE_NAME, resource exists\n\n--remove from GRID\n[grid@dbisrv02 ~]$ srvctl stop database -d PROD\n[grid@dbisrv02 ~]$ srvctl remove database -d PROD\nRemove the database PROD? (y\/[n]) Y\n\nSQL> startup\nORACLE instance started.\n\nTotal System Global Area  788529152 bytes\nFixed Size                  2929352 bytes\nVariable Size             314576184 bytes\nDatabase Buffers          465567744 bytes\nRedo Buffers                5455872 bytes\nDatabase mounted.\nDatabase opened.\n\nSQL> alter system set db_unique_name='PROD_SITE2' scope=spfile;\n\nSystem altered.<\/pre>\n","protected":false},"excerpt":{"rendered":"
Oracle Database 12c has new enhancements and additions in Recovery Manager (RMAN). The RMAN tool continues to enhance and extend the reliability, efficiency, and availability of Oracle Database Backup and Recovery. Below, I will mention couple of new features for the RMAN duplicate command, but also how to avoid issues that can happen on the […]<\/p>\n","protected":false},"author":27,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[229,59],"tags":[280,23,209,44],"type_dbi":[],"class_list":["post-11460","post","type-post","status-publish","format-standard","hentry","category-database-administration-monitoring","category-oracle","tag-database","tag-dba","tag-oracle-12c","tag-troubleshooting"],"acf":[],"yoast_head":"\nNew features and known issues with RMAN tool on Oracle database 12.1.0.2 - dbi Blog<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.dbi-services.com\/blog\/new-features-and-known-issues-with-rman-tool-on-oracle-database-12-1-0-2\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"New features and known issues with RMAN tool on Oracle database 12.1.0.2\" \/>\n<meta property=\"og:description\" content=\"Oracle Database 12c has new enhancements and additions in Recovery Manager (RMAN). 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