Standby database managed Recovery
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Thread: Standby database managed Recovery

  1. #1
    Join Date
    Aug 2002
    Posts
    176

    Standby database managed Recovery

    Hi all,

    I have a doubt in standy Database Configuration.
    We are using Oracle 8.1.6 working on windows 2000.

    The standby databse is configured to receive archivelogfiles and
    archive log files are transferred automatically. Till this is fine.

    Now if i want to put the standby database in managed recovery mode

    SQL> Recover managed standby database;

    we recive an error Archive logfile not found
    eg. Arc008.log not found
    Actually there are only upto arc007.log even in the primary db and Standby DB


    if i issue this command in the primary database after two log switches

    sql> Select max(sequence#) from v$log_history;
    output is 9

    if i issue this command in standby database i get the old number before the log switches
    sql> Select max(sequence#) from v$log_history;
    output is 7

    but the archive log files are tranferred.
    Arc008.lo and arc009.log are found in teh standby host

    but i dont think its applied automatically.

    How do you set the atandby databse to apply these logs automatically as soon as they receive them.


    Thanks and regards
    Success Consists of Getting Up Just One More Time Than You've Fallen Down
    Be Blessed

  2. #2
    Join Date
    Jan 2002
    Location
    Up s**t creek
    Posts
    1,525
    Before you issue the the managed command you have to perform a recovery to bring the database upto the last redo log, once the standby has been mounted issue the following at the svrmgrl prompt:

    Code:
    recover standby database
    AUTO
    recover managed standby database
    Regards
    Jim
    Oracle Certified Professional
    "Build your reputation by helping other people build theirs."

    "Sarcasm may be the lowest form of wit but its still funny"

    Click HERE to vist my website!

  3. #3
    Join Date
    Jul 2002
    Location
    California
    Posts
    128
    8i has a bug with managed standby databases such that the stand by must be in managed recovery mode (as jovery mentioned) prior to restarting the primary instance.

    Should the standby lose contact with the primary under version 8i, it will not "reconnect" and transfer logs.

    1. On standby, recover managed standby database
    - This window must be left open and running at all times
    (See script below)

    2. "Bounce" (Shutdown & Startup) the primary
    - This will start the two(2) databases talking



    Below is a shell script that I wrote for one of my DB's

    #!/bin/sh
    sqlplus /nolog << EOF
    connect / as sysdba
    recover managed standby database;
    exit;
    EOF


    put this script in a file (we'll call it smr.sh) on the standby box
    execute it as follows:

    nohup smr.sh &

    This will start managed recovery as a background process and maintain the session after the invoking session disconnects (HangsUP).
    Last edited by alapps; 01-29-2003 at 07:40 AM.
    alapps

    Fast, Cheap, Reliable... Pick Two(2)

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