Best location for the archived redo logs

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• Two questions relating to the archive redo logs with RMAN backup

  DB version: 11g
  
  I am new to RMAN.
  
  My database is in ARCHIVELOG mode. I intend to make a weekly backup for my db (02:00 every Monday). There will be all the incremental backups between these windows(Monday-to-Monday) of backup that I have would function for retrieving archived redo logs.
  
  
  Question1.
  I want to save the archived logs every day (for example at 23:00). How can I configure that?
  
  These are the configuration setting, that I intend to implement. I don't know how to set up the archive log backup
  

  configure default device type to disk;
  configure retention policy to redundancy;
  configure device type disk parallelism 1;
  configure channel 1 device type disk clear;
  configure channel 2 device type disk clear;
  configure channel 1 device type disk format '/u05/rman1/datafiles/rmnabackup1_%U';
  configure channel 2 device type disk format '/u05/rman2/datafiles/rmnabackup2_%U';
  configure controlfile autobackup on;
  configure controlfile autobackup format for device type disk to '/u05/rman1/control_files/rmnabackup1_%U';

  Question2.
  After that a new full backup is taken at 02:00 on Mondays, the archived redo logs accumulated since the last 7 days become unnecessary. How can I automate the removal of the archive redo logs with RMAN?

  Archive the log delete them all input command will take the destination of the log archiving log backup archive and delete this destination.

  In the log archive destination he has archived log in the sequence 1 to 100 then will he take the backup and delete any of the destination (Monday 23:00).

  In the log archive destination he has archived sequence journal 101 to 150 then will he take the backup and remove those in the destination (Tuesday 23:00).

  In the log archive destination he has archived log in the sequence from 151 to 180 so will he take the backup and delete any of the destination (Wednesday 10:00).

  It will continue like that.

  Concerning
  Asif Kabir

  -If you help brand the response as correct/useful.

• A PL/SQL to add the archived redo log for logminer files - please help debug

  Hello
  
  I have a PL/SQL to add recovery logs a day archived files to logminer utility in order to catch all LMD, which happened for a paticular at a particular time scheme
  
  as below,
  
  -logmnr.sql
  
  Set serveroutput on
  
  declare
  
  v_redo_dictionary_file VARCHAR2 (100);
  v_archived_log_file VARCHAR2 (100);
  
  -catch all them archived redo logs today, put in a cursor
  
  CURSOR logfile_cur IS
  SELECT name from v$ archived_log WHERE the to_char (COMPLETION_TIME, 'dd_MM_yyyy') > '18_01_2010' and not in sequence # (select sequence # v$ archived_log WHERE DICTIONARY_BEGIN = 'YES' AND dictionary_end = 'YES');
  
  
  Start
  
  -Create the DICTIONARY file on the files of the SOURCE database redo
  
  sys. DBMS_LOGMNR_D.build (OPTIONS = > sys.) DBMS_LOGMNR_D.store_in_redo_logs);
  
  
  Select name from v_redo_dictionary_file from v$ archived_log where DICTIONARY_BEGIN = 'YES' AND dictionary_end = 'YES', and sequence # = (select MAX(sequence#) from v$ archived_log WHERE DICTIONARY_BEGIN = 'YES' AND dictionary_end = 'YES');
  
  -Add newspapers of dictionary files
  sys.dbms_logmnr.add_logfile (nom_fichier_journal = > v_redo_dictionary_file,)
  Options = > sys.dbms_logmnr.new);
  
  -Add the log files
  
  Open logfile_cur;
  
  LOOP
  
  SEEK logfile_cur INTO v_archived_log_file;
  EXIT WHEN logfile_cur % NOTFOUND;
  sys.dbms_logmnr.add_logfile (nom_fichier_journal = > v_archived_log_file);
  
  
  END LOOP;
  
  CLOSE Logfile_cur;
  
  -Start LogMiner, also enable the ddl
  
  sys.dbms_logmnr.START_LOGMNR (options = > dbms_logmnr.dict_from_redo_logs + dbms_logmnr.ddl_dict_tracking);
  
  EXCEPTION
  WHILE OTHERS
  THEN
  DBMS_OUTPUT. PUT_LINE (SQLERRM);
  
  END;
  /
  
  
  ###############
  SQL > @logmnr.sql
  ORA-01291: missing logfile
  
  PL/SQL procedure successfully completed.
  
  What I did wrong?
  
  Thank you very much
  Roy

  [Double wire | http://forums.oracle.com/forums/message.jspa?messageID=4035521#4035521]

• The best location for the .vswp file

  I use RecoveProint EMC to replicate my virtual machine for use with MRS. While the implimentaion of EMC RecoverPoint recommended that we allocate a hard sepperate for pagefile guest on a non replicated operating system LUN as the page file on the guest has been constantly evolving.  We have seen a significant reduction in the rate change that enabled us to reach the RPO we were after and with our bandwidth allocated for replication.  I am able to reproduce the LUN for the swap of OS files once and leave.   I'm utilizeing now the option "Migrate storage" with in VCenter to consolidate the VM running on a given LUN and I noticed that when I move a hard to the BONE (not hard for the OS swap) two hard files are transferred to the new location.  Then I discovered that to move one of the files hard for a given virtual machine I have to turn off the virtual machine and to migrate the only hard.  Not perfect, but whatever. To do this, I noticed that the "VM workplace" has been changed to the location of my guest operating system swap file hard.

  It asked if it is a good place for hosting the .vswp.  The .vswp has a significant amount of change as well?  And as the OS swap hard matches the basically wiped clean during a restart?

  Hope it makes sense.

  The .vswp file is created on the virtual machine market. Its size is equal to the amount of UNRESERVED vRAM. This means that if you have a virtual machine with 4 GB of vRAM, but 3 GB is reserved, the .vswp is 1 GB. The .vswp is used as a last resort, if there is a physical RAM memory conflict. It is called after the transparent page sharing or balooning. If you allocate no more of RAM physical vRAM, then it will never be used. BUT, it is removed turn off power and created on the power. If the virtual machine is always on, so no worries with a bandwidth of replication.

  You can place files .vswp on local storage or a separate logical unit number. As Andrew said, you can make this a whole cluster framework if you want. It's all about management. If you are comfortable with it being separated from the .vmx, nvram, etc.. Usually, the concern is the amount of what is essentially lost a costly LUN disk, so it is moved to the cheaper SCSI disk. Assuming that there is no oversubscription of RAM, it will never be used. Rather than taking up valuable disk space, why not just use a reserve of memory in order to avoid its use definitely?

  Dave Convery

  VMware vExpert 2009

  http://www.dailyhypervisor.com

  http://Twitter.com/dconvery

  Prudent. We do not want to make of this.

  Bill Watterson, "Calvin and Hobbes".

• Questions about the parameters of database using a fast recovery area and the writing of two copies of archived redo logs.

  My databases are 11.2.0.3.7 Enterprise Edition. My OS is AIX 7.1.

  I am to convert databases to use individual zones of rapid recovery and have two questions about what values to assign to database settings related to archived redo logs. This example refers to a database.

  I read that if I specify

  Log_archive_dest_1 =' LOCATION = USE_DB_RECOVERY_FILE_DEST'

  the names of newspapers archived redo written in the default quick recovery area is '% t_%S_%r.dbf '.

  In the past my archived redo logs have been appointed based on the parameter

  log_archive_format='GPAIDT_archive_log_%t_%s_%r.arc'

  I think log_archive_format will be ignored for logs archived redo written in the fast recovery area.

  I am planning to write a second copy of the archived redo logs based on the parameter

  ALTER system set log_archive_dest_2 = ' LOCATION = / t07/admin/GPAIDT/arch.

  If I do this, the copy of logs placed in /t07 will be called '% t_%S_%r.dbf' or 'GPAIDT_archive_log_%t_%s_%r.arc '?

  Before my use of a fast recovery area, I used the OEM 12 c Console to specify settings of backup of database that has been deleted and archived redo logs after 1 backup. Oracle manuals say rather specify a deletion of "none" policy and allow Oracle delete newspapers in the area of fast recovery if necessary. Since I got to keep a second copy of these log files in /t07 should I keep the policy that says to delete logs after 1 backup? If I don't do that, how will they removed from /t07?

  Thank you

  Bill

  If I do this, the copy of logs placed in /t07 will be called '% t_%S_%r.dbf' or 'GPAIDT_archive_log_%t_%s_%r.arc '?

  They will be "GPAIDT_archive_log_%t_%s_%r.arc". LOG_ARCHIVE_FORMAT is only ignored for directories under OMF.

  Since I got to keep a second copy of these log files in /t07 should I keep the policy that says to delete logs after 1 backup? If I don't do that, how will they removed from /t07?

  You can hold the deletion policy as it is. Oracle documentation, defining the STRATEGY of the ARCHIVELOG DELETION: "the deletion of archived newspaper policy applies to logs archive destinations, including the area of fast recovery."

• 15 seconds for the archiving of newspapers is acceptable?

  Version: 11.2.0.3
  Platform: RHEL 5.4
  
  3-node RAC
  DB in ARCHIVELOG mode
  
  Question1
  ============
  
  As you can see below sometimes it takes up to 15 seconds for the archiving of recovery logs.
  
  Online redo log switch happens fast however. It takes less than 2 seconds (maybe not fast enough for you guys)
  
  Is this acceptable?
  
  
  

  --- Log archiving is slow
  
  SQL> set timing on
  SQL> alter system archive log current;
  
  System altered.
  
  Elapsed: 00:00:11.08
  SQL>
  SQL>
  SQL> alter system archive log current;
  
  System altered.
  
  Elapsed: 00:00:10.77
  SQL> alter system archive log current;
  
  System altered.
  
  Elapsed: 00:00:15.06
  SQL>
  SQL>
  
  -- But log switching is fast !
  
  SQL> alter system switch logfile;
  
  System altered.
  
  Elapsed: 00:00:01.89
  SQL> alter system switch logfile;
  
  System altered.
  
  Elapsed: 00:00:00.21

  Question2.
  =========
  
  For a database in archivelog mode, ALTER SYSTEM ARCHIVE LOG CURRENT and ALTER SYSTEM SWITCH LOGFILE have the same effect. Right? I mean, these two commands request the process archiving to archive the ENT which is currently written to. right?

  It's fast enough, as long as you don't fill all redo it online until you have completed check-in first. This is a round robin, so if you get all the way around to the first which is still more archived, everything stops until it is done.

  The ALTER SYSTEM ARCHIVE LOG CURRENT expected archiver finish archiving, is slower than ALTER SYSTEM SWITCH LOGFILE, perhaps very much so with the largest and redo.

• Elgato EyeTV - I copied my recordings on another external hard drive, assigned to this disk as the location of the Archive, restarted the computer, but the location of unpublished/are not recognized. (End of 2006 Intel iMac / OSX 10.7.5 Lion)

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• DPS: Judge to use the parameter Raster or vector in the States of the objects when the majority of the page is a photo. What is the best setting for the overall performance?

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