Data warehouse Archive log

Are there any performance implications for archive log in DWH?
Is it recommended to enable archive log in DWH?

General speaking, it's still recommend to enable archive logging in DWH environment. With non-archivelog your only viable backup strategy is cold backup which require database shutdown.
Turn on archivelog does have some performance impact on massive loading. However you can use nologging with direct patch/parallele loading to counter that, remember to take an immediate backup before/after loading.

Similar Messages

  • Data Warehouse Archive logging questions

    Hi all,
    I'd like some opinions/advice on archive logging and OWB 10.2 with a 10.2 database.
    Do you use archive logging on your non-production OWB instances? I have a development system that only has "on demand" backups done and the archive logs fill frequently. In this scenario, should I disable archive logging? I realize that this limits my recovery options to cold backups but on a development environment, this seems sufficient for me. Would I be messing up any OWB features by turning off archive logging?
    For production instances, how large do you make your archive log (as a percentage of your total DW size perhaps)?
    How do you manage them? With Flash recovery areas? Manually? RMAN or other tools?
    Thanks in Advance,
    Mike

    Usualy, I don't set any DW tables to log. Since it's a data warehouse, I believe it's better to make cold backups. In some cases, ETL Mappings may work like backup procedures themselves.
    In OWB, select the object you need (table or index) to create. Right-click it, select Configuration -> Performance Parameters -> Logging Mode -> NOLOGGING
    Flash RecoveryDon't think it's going to help you, since most of your data manipulation is based on batch jobs.
    RMANIf you want to make hot backups, this is something that can really help you manage backup procedures.
    ManuallyMaybe... Why not?
    I don't take hot backups from DW databases. I prefer to take cold backups. In a recovery scenario, you restore the cold backup and if it's 3 days late, I execute the ETL mappings for the last 3 days.
    Regards,
    Marcos

  • Read data from Archive logs

    Does anyone have any recommandations on how to read data from archive logs. When i use log minor, i am getting only bind variables for DML operations. But i need actual data from the archive logs..
    Any thoughts
    Thanks
    -Prasad

    Log miner is the closest to command issued as possible. Depending on the Oracle version you will be able to see DML or DML and DDL. From 9i and on Oracle was able to translate the DML against data dictionary as the actual DDL command. On its first 8i release only DML was visible.
    ~ Madrid

  • How to delete the data in archived log files

    hi
    how can i delete the enteries in archived log files. and what is the disadvantage of deleting archived log enteries.

    There is no documented way to delete data stored in archived log files: you can only remove the archived log files if needed.

  • Data Guard  Archive log size

    Hi Experts,
    I would like to know do we have any views where we can see the size of the archive log file transfered and applied to the physical standby database. I wanted to see how much space it takes in a day.
    Thanks
    Shaan
    Message was edited by:
    Shaan_dmp

    SQL> desc v$archived_log
    Name Null? Type
    RECID NUMBER
    STAMP NUMBER
    NAME VARCHAR2(257)
    DEST_ID NUMBER
    THREAD# NUMBER
    SEQUENCE# NUMBER
    RESETLOGS_CHANGE# NUMBER
    RESETLOGS_TIME DATE
    FIRST_CHANGE# NUMBER
    FIRST_TIME DATE
    NEXT_CHANGE# NUMBER
    NEXT_TIME DATE
    BLOCKS NUMBER
    BLOCK_SIZE NUMBER
    CREATOR VARCHAR2(7)
    REGISTRAR VARCHAR2(7)
    STANDBY_DEST VARCHAR2(3)
    ARCHIVED VARCHAR2(3)
    APPLIED VARCHAR2(3)
    DELETED VARCHAR2(3)
    STATUS VARCHAR2(1)
    COMPLETION_TIME DATE
    DICTIONARY_BEGIN VARCHAR2(3)
    DICTIONARY_END VARCHAR2(3)
    END_OF_REDO VARCHAR2(3)
    BACKUP_COUNT NUMBER
    ARCHIVAL_THREAD# NUMBER
    ACTIVATION# NUMBER
    Refer to blocks and block_size
    Other than that, you can look this up in the documentation on v$archived_log.
    Why do you act as a spoiled 3 year old, who wants everything on a golden plate, and can't be bothered to do anything himself?
    Blocks and block_size: That is really obvious, isn't it?
    It is just an issue of using your brains!!!
    Sybrand Bakker
    Senior Oracle DBA

  • Data Guard archive log remove

    Hi,
    I am using 9i Data Guard now. I try to set up automatic procedure to remove the archive log on the standby site once it got applied. But except the manual remove/delete, there is no option to set the automatic procedure in Oracle Data Guard setting.
    Do anyone has solution for it?
    Thanks

    user3076922 wrote:
    Hi
    Standby database configured with broker and applying the redo in really time; however, I want to change this to archive log apply mode without losing the broker configuration. Is it possible? If it is not possible to use broker to do archive log apply, can I remove the broker and use data guard to set up the standby to use archive log apply?
    RegardsHi
    I think mseberg is answered correct, you can use enable/disable apply log with change of state on standby database with DGMGRL, as writen mseberg.
    or you can disable recover standby database with following script from SQL*Plus.
    SQL> alter database recover managed standby database cancel;Regards
    Mahir M. Quluzade
    www.mahir-quluzade.com

  • Data Guard Archive Log Latency Between Primary and Physical Standby

    How can I get the time it takes (latency) for the primary instance to get an archive log over to the physical standby instance and get it "archived" and "applied". I have been looking at the V$ARCHIVED_LOG view on each side but the COLUMN "COMPLETION_TIME" always shows a date "MM/DD/YY" and no timestamp. I thought the DATE datatype include data and time. Any ideas on how I can get the latency info I'm looking for?
    Thanks
    Steve

    the COLUMN "COMPLETION_TIME" always shows a date "MM/DD/YY"
    and no timestamp. Did you try using TO_CHAR ? e.g.
    to_char(completion_time,'dd/mm/yyyy hh24:mi:ss')

  • Data Warehouse issues

    Hi there.
    I'll try and be to the point as I can. I undertook an upgrade from SCOM 2012 SP1 to R2, this was successful. However after a few days had past, I noticed that the log file for the DW DB was growing rapidly, to the point where we hit a real issue. The drive
    was a comfortable 50GB drive, but in the end had to be increased to just short of 500GB !! Long story short, I wasn't allowed to get a consultant in to help diagnose the issue, therefore, I was consulting Google, Technet articles etc.
    The end decision was to DELETE the Data Warehouse DB & log file and create them again from scratch. I've done this, and used the following instructions on how to do so (http://www.3packetsofcrisps.com/2014/04/reset-scom-2012-data-warehouse-database.html).
    I have data going into the DW DB, or rather did up until midnight, so had around 3.5 hrs worth. 
    After checking the Operations Manager event log on one of the Management Servers, I can see numerous errors, these include:2115, 4506 and occasionally 8000. 
    The event 4506 states: "Data was dropped due to too much outstanding data in rule "Rule Name" running for instance "instance name" with id "ID name" in management group "xxx". 
    After some consulting Google, I read that this might be expected because a lot of data is trying to be written to the DW DB, however, that doesn't explain why it was writing and for some reason randomly stopped. 
    A quick summary of our environment:
    2x Management Servers running Win 2012 Std x64
    1x Operations Database server running Win 2012 Std x64 & SQL Server 2012 Std x64
    1x Data Warehosue DB server running Win 2012 Std x64 & SQL Server 2012 Std x64
    I've checked account permissions using http://technet.microsoft.com/en-gb/library/hh457003.aspx
    If you need any more information, please say, I've tried to keep the post as small as possible.
    Dave.

    Hi 
    Thanks for responding. It's been over a day so far, however, I've only just flushed the health service state & cache for the servers I'm monitoring. Would you suggest I do this for the Management Servers as well?
    In regards to alerts in the SCOM console, I am getting active alerts. I've just checked and some were 49 minutes ago. 
    I've also taken another look at the DW DB (via Windows Explorer), and I can see the last modified date has changed to 09/09/2014 20:48. So once again, something has happened but it appears to be random..
    This might need to be a separate post, but I've also got issues with my Reporting. If I go to the 'Reporting Server URL', I get the following message: "The version of the report server database is either in a format that is not valid, or it cannot
    be read. The found version is ''. The expected version is '162'. (rsInvalidReportServerDatabase)"
    Any ideas?
    Dave

  • Goldengate extracting from Archive log

    Dear All,
    We are conducting a replication of Oracle Database. Due to high load on Production server, the client is providing us a near DR database server for extraction. This database server is using Oracle Data Guard to be in Sync with Production server. Hence we will be using Archive logs shipped from Production to DR to Extract changed data. I have searched on the Net and read manuals, but I am unable to understand the how to configure OGG for this scenario. I understand that we can used Tranlogoptions parameter to extract data from Archive logs, but since the near DR database is in Mount state, how can we Log in the database using userid /password in extract process. Also we need to have Select any dictionary privileges on the database, but database is in mount state, so how to work on it??
    Awaiting eagerly for the reply.l

    For a physical standby, you can configure GG to read the archived standby logs in archive log only (ALO) mode.
    ARCHIVEDLOGONLY causes Extract to read from the archived logs exclusively, without querying or validating the logs from system views such as v$log and v$archived_log. This parameter puts Extract into Archived Log Only mode (ALO). For more information, see the Oracle GoldenGate Oracle Installation and Setup Guide.
    You can configure the Extract process to read exclusively from the archived logs. This is
    known as Archived Log Only (ALO) mode. In this mode, Extract only reads from archived
    logs that are stored in a specified location. ALO mode allows Oracle GoldenGate to use
    production logs that are shipped over to a secondary database (such as a standby) as the
    data source for Oracle GoldenGate. The online logs will not be used. Oracle GoldenGate
    will connect to the secondary database to get metadata and other required data as needed.
    As an alternative, ALO mode is supported on the production system.
    Extract automatically operates in ALO mode if it detects that the database is a physical standby.
    Lots of other info in the Oracle install guide.

  • I have one problem with Data Guard. My archive log files are not applied.

    I have one problem with Data Guard. My archive log files are not applied. However I have received all archive log files to my physical Standby db
    I have created a Physical Standby database on Oracle 10gR2 (Windows XP professional). Primary database is on another computer.
    In Enterprise Manager on Primary database it looks ok. I get the following message “Data Guard status Normal”
    But as I wrote above ”the archive log files are not applied”
    After I created the Physical Standby database, I have also done:
    1. I connected to the Physical Standby database instance.
    CONNECT SYS/SYS@luda AS SYSDBA
    2. I started the Oracle instance at the Physical Standby database without mounting the database.
    STARTUP NOMOUNT PFILE=C:\oracle\product\10.2.0\db_1\database\initluda.ora
    3. I mounted the Physical Standby database:
    ALTER DATABASE MOUNT STANDBY DATABASE
    4. I started redo apply on Physical Standby database
    alter database recover managed standby database disconnect from session
    5. I switched the log files on Physical Standby database
    alter system switch logfile
    6. I verified the redo data was received and archived on Physical Standby database
    select sequence#, first_time, next_time from v$archived_log order by sequence#
    SEQUENCE# FIRST_TIME NEXT_TIME
    3 2006-06-27 2006-06-27
    4 2006-06-27 2006-06-27
    5 2006-06-27 2006-06-27
    6 2006-06-27 2006-06-27
    7 2006-06-27 2006-06-27
    8 2006-06-27 2006-06-27
    7. I verified the archived redo log files were applied on Physical Standby database
    select sequence#,applied from v$archived_log;
    SEQUENCE# APP
    4 NO
    3 NO
    5 NO
    6 NO
    7 NO
    8 NO
    8. on Physical Standby database
    select * from v$archive_gap;
    No rows
    9. on Physical Standby database
    SELECT MESSAGE FROM V$DATAGUARD_STATUS;
    MESSAGE
    ARC0: Archival started
    ARC1: Archival started
    ARC2: Archival started
    ARC3: Archival started
    ARC4: Archival started
    ARC5: Archival started
    ARC6: Archival started
    ARC7: Archival started
    ARC8: Archival started
    ARC9: Archival started
    ARCa: Archival started
    ARCb: Archival started
    ARCc: Archival started
    ARCd: Archival started
    ARCe: Archival started
    ARCf: Archival started
    ARCg: Archival started
    ARCh: Archival started
    ARCi: Archival started
    ARCj: Archival started
    ARCk: Archival started
    ARCl: Archival started
    ARCm: Archival started
    ARCn: Archival started
    ARCo: Archival started
    ARCp: Archival started
    ARCq: Archival started
    ARCr: Archival started
    ARCs: Archival started
    ARCt: Archival started
    ARC0: Becoming the 'no FAL' ARCH
    ARC0: Becoming the 'no SRL' ARCH
    ARC1: Becoming the heartbeat ARCH
    Attempt to start background Managed Standby Recovery process
    MRP0: Background Managed Standby Recovery process started
    Managed Standby Recovery not using Real Time Apply
    MRP0: Background Media Recovery terminated with error 1110
    MRP0: Background Media Recovery process shutdown
    Redo Shipping Client Connected as PUBLIC
    -- Connected User is Valid
    RFS[1]: Assigned to RFS process 2148
    RFS[1]: Identified database type as 'physical standby'
    Redo Shipping Client Connected as PUBLIC
    -- Connected User is Valid
    RFS[2]: Assigned to RFS process 2384
    RFS[2]: Identified database type as 'physical standby'
    Redo Shipping Client Connected as PUBLIC
    -- Connected User is Valid
    RFS[3]: Assigned to RFS process 3188
    RFS[3]: Identified database type as 'physical standby'
    Primary database is in MAXIMUM PERFORMANCE mode
    Primary database is in MAXIMUM PERFORMANCE mode
    RFS[3]: No standby redo logfiles created
    Redo Shipping Client Connected as PUBLIC
    -- Connected User is Valid
    RFS[4]: Assigned to RFS process 3168
    RFS[4]: Identified database type as 'physical standby'
    RFS[4]: No standby redo logfiles created
    Primary database is in MAXIMUM PERFORMANCE mode
    RFS[3]: No standby redo logfiles created
    10. on Physical Standby database
    SELECT PROCESS, STATUS, THREAD#, SEQUENCE#, BLOCK#, BLOCKS FROM V$MANAGED_STANDBY;
    PROCESS STATUS THREAD# SEQUENCE# BLOCK# BLOCKS
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    RFS IDLE 0 0 0 0
    RFS IDLE 0 0 0 0
    RFS IDLE 1 9 13664 2
    RFS IDLE 0 0 0 0
    10) on Primary database:
    select message from v$dataguard_status;
    MESSAGE
    ARC0: Archival started
    ARC1: Archival started
    ARC2: Archival started
    ARC3: Archival started
    ARC4: Archival started
    ARC5: Archival started
    ARC6: Archival started
    ARC7: Archival started
    ARC8: Archival started
    ARC9: Archival started
    ARCa: Archival started
    ARCb: Archival started
    ARCc: Archival started
    ARCd: Archival started
    ARCe: Archival started
    ARCf: Archival started
    ARCg: Archival started
    ARCh: Archival started
    ARCi: Archival started
    ARCj: Archival started
    ARCk: Archival started
    ARCl: Archival started
    ARCm: Archival started
    ARCn: Archival started
    ARCo: Archival started
    ARCp: Archival started
    ARCq: Archival started
    ARCr: Archival started
    ARCs: Archival started
    ARCt: Archival started
    ARCm: Becoming the 'no FAL' ARCH
    ARCm: Becoming the 'no SRL' ARCH
    ARCd: Becoming the heartbeat ARCH
    Error 1034 received logging on to the standby
    Error 1034 received logging on to the standby
    LGWR: Error 1034 creating archivelog file 'luda'
    LNS: Failed to archive log 3 thread 1 sequence 7 (1034)
    FAL[server, ARCh]: Error 1034 creating remote archivelog file 'luda'
    11)on primary db
    select name,sequence#,applied from v$archived_log;
    NAME SEQUENCE# APP
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\IRINA\ARC00003_0594204176.001 3 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\IRINA\ARC00004_0594204176.001 4 NO
    Luda 4 NO
    Luda 3 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\IRINA\ARC00005_0594204176.001 5 NO
    Luda 5 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\IRINA\ARC00006_0594204176.001 6 NO
    Luda 6 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\IRINA\ARC00007_0594204176.001 7 NO
    Luda 7 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\IRINA\ARC00008_0594204176.001 8 NO
    Luda 8 NO
    12) on standby db
    select name,sequence#,applied from v$archived_log;
    NAME SEQUENCE# APP
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\LUDA\ARC00004_0594204176.001 4 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\LUDA\ARC00003_0594204176.001 3 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\LUDA\ARC00005_0594204176.001 5 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\LUDA\ARC00006_0594204176.001 6 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\LUDA\ARC00007_0594204176.001 7 NO
    C:\ORACLE\PRODUCT\10.2.0\ORADATA\LUDA\ARC00008_0594204176.001 8 NO
    13) my init.ora files
    On standby db
    irina.__db_cache_size=79691776
    irina.__java_pool_size=4194304
    irina.__large_pool_size=4194304
    irina.__shared_pool_size=75497472
    irina.__streams_pool_size=0
    *.audit_file_dest='C:\oracle\product\10.2.0\admin\luda\adump'
    *.background_dump_dest='C:\oracle\product\10.2.0\admin\luda\bdump'
    *.compatible='10.2.0.1.0'
    *.control_files='C:\oracle\product\10.2.0\oradata\luda\luda.ctl'
    *.core_dump_dest='C:\oracle\product\10.2.0\admin\luda\cdump'
    *.db_block_size=8192
    *.db_domain=''
    *.db_file_multiblock_read_count=16
    *.db_file_name_convert='luda','irina'
    *.db_name='irina'
    *.db_unique_name='luda'
    *.db_recovery_file_dest='C:\oracle\product\10.2.0\flash_recovery_area'
    *.db_recovery_file_dest_size=2147483648
    *.dispatchers='(PROTOCOL=TCP) (SERVICE=irinaXDB)'
    *.fal_client='luda'
    *.fal_server='irina'
    *.job_queue_processes=10
    *.log_archive_config='DG_CONFIG=(irina,luda)'
    *.log_archive_dest_1='LOCATION=C:/oracle/product/10.2.0/oradata/luda/ VALID_FOR=(ALL_LOGFILES, ALL_ROLES) DB_UNIQUE_NAME=luda'
    *.log_archive_dest_2='SERVICE=irina LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES, PRIMARY_ROLE) DB_UNIQUE_NAME=irina'
    *.log_archive_dest_state_1='ENABLE'
    *.log_archive_dest_state_2='ENABLE'
    *.log_archive_max_processes=30
    *.log_file_name_convert='C:/oracle/product/10.2.0/oradata/irina/','C:/oracle/product/10.2.0/oradata/luda/'
    *.open_cursors=300
    *.pga_aggregate_target=16777216
    *.processes=150
    *.remote_login_passwordfile='EXCLUSIVE'
    *.sga_target=167772160
    *.standby_file_management='AUTO'
    *.undo_management='AUTO'
    *.undo_tablespace='UNDOTBS1'
    *.user_dump_dest='C:\oracle\product\10.2.0\admin\luda\udump'
    On primary db
    irina.__db_cache_size=79691776
    irina.__java_pool_size=4194304
    irina.__large_pool_size=4194304
    irina.__shared_pool_size=75497472
    irina.__streams_pool_size=0
    *.audit_file_dest='C:\oracle\product\10.2.0/admin/irina/adump'
    *.background_dump_dest='C:\oracle\product\10.2.0/admin/irina/bdump'
    *.compatible='10.2.0.1.0'
    *.control_files='C:\oracle\product\10.2.0\oradata\irina\control01.ctl','C:\oracle\product\10.2.0\oradata\irina\control02.ctl','C:\oracle\product\10.2.0\oradata\irina\control03.ctl'
    *.core_dump_dest='C:\oracle\product\10.2.0/admin/irina/cdump'
    *.db_block_size=8192
    *.db_domain=''
    *.db_file_multiblock_read_count=16
    *.db_file_name_convert='luda','irina'
    *.db_name='irina'
    *.db_recovery_file_dest='C:\oracle\product\10.2.0/flash_recovery_area'
    *.db_recovery_file_dest_size=2147483648
    *.dispatchers='(PROTOCOL=TCP) (SERVICE=irinaXDB)'
    *.fal_client='irina'
    *.fal_server='luda'
    *.job_queue_processes=10
    *.log_archive_config='DG_CONFIG=(irina,luda)'
    *.log_archive_dest_1='LOCATION=C:/oracle/product/10.2.0/oradata/irina/ VALID_FOR=(ALL_LOGFILES, ALL_ROLES) DB_UNIQUE_NAME=irina'
    *.log_archive_dest_2='SERVICE=luda LGWR ASYNC VALID_FOR=(ONLINE_LOGFILES, PRIMARY_ROLE) DB_UNIQUE_NAME=luda'
    *.log_archive_dest_state_1='ENABLE'
    *.log_archive_dest_state_2='ENABLE'
    *.log_archive_max_processes=30
    *.log_file_name_convert='C:/oracle/product/10.2.0/oradata/luda/','C:/oracle/product/10.2.0/oradata/irina/'
    *.open_cursors=300
    *.pga_aggregate_target=16777216
    *.processes=150
    *.remote_login_passwordfile='EXCLUSIVE'
    *.sga_target=167772160
    *.standby_file_management='AUTO'
    *.undo_management='AUTO'
    *.undo_tablespace='UNDOTBS1'
    *.user_dump_dest='C:\oracle\product\10.2.0/admin/irina/udump'
    Please help me!!!!

    Hi,
    After several tries my redo logs are applied now. I think in my case it had to do with the tnsnames.ora. At this moment I have both database in both tnsnames.ora files using the SID and not the SERVICE_NAME.
    Now I want to use DGMGRL. Adding a configuration and a stand-by database is working fine, but when I try to enable the configuration DGMGRL gives no feedback and it looks like it is hanging. The log, although says that it succeeded.
    In another session 'show configuration' results in the following, confirming that the enable succeeded.
    DGMGRL> show configuration
    Configuration
    Name: avhtest
    Enabled: YES
    Protection Mode: MaxPerformance
    Fast-Start Failover: DISABLED
    Databases:
    avhtest - Primary database
    avhtestls53 - Physical standby database
    Current status for "avhtest":
    Warning: ORA-16610: command 'ENABLE CONFIGURATION' in progress
    It there anybody that experienced the same problem and/or knows the solution to this?
    With kind regards,
    Martin Schaap

  • Is the only way to import large amount of data and database objects into a primary database is to shutdown the standby, turn off archive log mode, do the import, then rebuild the standby?

    I have a primary database that need to import large amount of data and database objects. 1.) Do I shutdown the standby? 2.) Turn off archive log mode? 3.) Perform the import? 4.) Rebuild the standby? or is there a better way or best practice?

    Instead of rebuilding the (whole) standby, you take an incremental (from SCN) backup from the Primary and restore it on the Standby.  That way, if, for example
    a. Only two out of 12 tablespaces are affected by the import, the incremental backup would effectively be only the blocks changed in those two tablespaces (and some other changes in system and undo) {provided that there are no other changes in the other ten tablespaces}
    b. if the size of the import is only 15% of the database, the incremental backup to restore to the standby is small
    Hemant K Chitale

  • Archived LOG data  - SLG1

    Hi All,
    I have one issue on LOG data.
    I have to fetch archived log data with external id
    By SLG1, we can get log data.
    But i need to develop this scenario in logically in program.
    We can find the records (EXTERNAL ID) is archived or not with FM  BAL_ARCHIVE_SEARCH.
    But how to get log data of  the record?
    For Ex:
    My External ID :   123456789
    After executing the Above FM ,it is confirmed as Archived record.
    But now i have to fetch the log data of this record(log data means messages).
    Please tell me how to fetch these message(log data)?
    is there any FM or Sample logic?
    Thanks & Regards
    Sathish

  • Data Guard. My archive log files are not applied.

    I have one problem with Data Guard. My archive log files are not applied. However I have received all archive log files to my physical Standby db
    I have created a Physical Standby database on Oracle 10gR2 (Windows XP professional). Primary database is on another computer.
    In Enterprise Manager on Primary database it looks ok. I get the following message “Data Guard status Normal”
    But as I wrote above ”the archive log files are not applied”
    After I created the Physical Standby database, I have also done:
    1. I connected to the Physical Standby database instance.
    CONNECT SYS/SYS@luda AS SYSDBA
    2. I started the Oracle instance at the Physical Standby database without mounting the database.
    STARTUP NOMOUNT PFILE=C:\oracle\product\10.2.0\db_1\database\initluda.ora
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    3 2006-06-27 2006-06-27
    4 2006-06-27 2006-06-27
    5 2006-06-27 2006-06-27
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    7 2006-06-27 2006-06-27
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    ARC1: Archival started
    ARC2: Archival started
    ARC3: Archival started
    ARC4: Archival started
    ARC5: Archival started
    ARC6: Archival started
    ARC7: Archival started
    ARC8: Archival started
    ARC9: Archival started
    ARCa: Archival started
    ARCb: Archival started
    ARCc: Archival started
    ARCd: Archival started
    ARCe: Archival started
    ARCf: Archival started
    ARCg: Archival started
    ARCh: Archival started
    ARCi: Archival started
    ARCj: Archival started
    ARCk: Archival started
    ARCl: Archival started
    ARCm: Archival started
    ARCn: Archival started
    ARCo: Archival started
    ARCp: Archival started
    ARCq: Archival started
    ARCr: Archival started
    ARCs: Archival started
    ARCt: Archival started
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    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
    ARCH CONNECTED 0 0 0 0
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    ARC1: Archival started
    ARC2: Archival started
    ARC3: Archival started
    ARC4: Archival started
    ARC5: Archival started
    ARC6: Archival started
    ARC7: Archival started
    ARC8: Archival started
    ARC9: Archival started
    ARCa: Archival started
    ARCb: Archival started
    ARCc: Archival started
    ARCd: Archival started
    ARCe: Archival started
    ARCf: Archival started
    ARCg: Archival started
    ARCh: Archival started
    ARCi: Archival started
    ARCj: Archival started
    ARCk: Archival started
    ARCl: Archival started
    ARCm: Archival started
    ARCn: Archival started
    ARCo: Archival started
    ARCp: Archival started
    ARCq: Archival started
    ARCr: Archival started
    ARCs: Archival started
    ARCt: Archival started
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