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  1. #1
    Join Date
    Jul 2003
    Posts
    23

    Question Unanswered: Inconsistent Chunk

    IBM Informix Dynamic Server Version 9.30.FC6

    Backup method onbar using ISM Netvault.

    I have a very large amount of data, many dbspaces some live some for test / training. My onbar back-up takes an age so I want to just backup the primary dbspaces required to run our application.

    If I never (ever say) backup a dbspaces and use onbar to restore the backed up dbspaces the non restored dbspaces status go to offline and the chunks are labelled as inconsistent.

    Question.

    Is there a way to force these dbspaces on-line ?

  2. #2
    Join Date
    Aug 2003
    Location
    Argentina
    Posts
    780
    Hi,
    Yes, look onspaces help.

    Gustavo.

  3. #3
    Join Date
    Jul 2003
    Posts
    23

    Unhappy More help needed .....

    $ onspaces -s dm2sysdbs -p /dev/informix/ldm2sys01 -o 0 -O
    The chunk specified does not exist.

    $ ls -l /dev/informix/ldm2sys01
    lrwxrwxrwx 1 root system 14 Dec 08 2004 /dev/informix/ldm2sys01 -> /dev/rdm2sys01

    What am I doing wrong !!!!!

  4. #4
    Join Date
    Aug 2003
    Location
    Argentina
    Posts
    780
    Hi,

    Look if exists /dev/rdm2sys01.

    ls -l /dev/rdm2sys01

  5. #5
    Join Date
    Jul 2003
    Posts
    23

    Nope, still doesn't work.

    $ ls -l /dev/rdm2sys01
    crw-rw---- 1 informix informix 48, 53 Dec 08 2004 /dev/rdm2sys01
    $ onspaces -s dm2sysdbs -p /dev/rdm2sys01 -o 0 -O
    The chunk specified does not exist.

  6. #6
    Join Date
    Aug 2003
    Location
    Argentina
    Posts
    780
    Hi,

    Please test the permissions of all path.
    If you run onspace as informix ?

    Gustavo.

  7. #7
    Join Date
    Jul 2003
    Posts
    23

    Permissions are fine.

    I'm doing these commands logged in as Informix. I have been told that only IBM (INFORMIX) can resolve this issue. Is this true.

    My chunks are not mirrored.

  8. #8
    Join Date
    Sep 2002
    Posts
    102
    You cannot force an inconsistent chunk to go online. Only the IBM technical support can do this with their support tools. Even if they manage to make it online, chances are the server will placed if in inconsistent mode.

    The only way to make sure all chunks are consistent is to perform a full restore or drive south as fast as possible.

  9. #9
    Join Date
    Jul 2003
    Posts
    23

    Unhappy Oh bloody marvlus.

    Problem is my friend my IDS instance is full of dbspaces that are NOT critcal and increase the backup time by 3 hours. I am now convinced I need to create a new instance where I can move my non critical dbspace and therfor reduce the critical backup to 2 hours.

    Cheers

    Kelvin

  10. #10
    Join Date
    Apr 2004
    Location
    Brussels
    Posts
    57
    That's the way we are working.

    3 different instances : production, developpment, training

    Another instance = another onconfig.

    So devlop and in training we don't need to backup the logging, we send it to /dev/null. And we don't have to bckup every day.
    Yves & Willy

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