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  1. #1
    Join Date
    Nov 2003
    Posts
    6

    Cool Unanswered: How to Speed up DB activation

    We are running both UDB V7.2 and UDB V8.1, and it's taking somethimes more that 5 mins to activate a database.....
    In general, what can be done to speed up a database activation..... dbm configuration and db configuration.
    (Some of our database has more than 300 tablespaces.......)

    thanks

  2. #2
    Join Date
    Mar 2004
    Posts
    448
    You can use the activate database command, so that when all the applications are not using the database, it remains activate, until you again
    deactivate it.

    regards & thanks,

    Mujeeb

  3. #3
    Join Date
    Nov 2003
    Posts
    6
    we find that activate database is slow.......

  4. #4
    Join Date
    Mar 2003
    Posts
    343
    Look at the value for softmax. Look at the size of logs. reduce the number of logs that db2 has to go through on activation.

    Also, ensure that the logs are available on faster disk. If you are archiving, you may want to look at what you are archiving to (disk/tape) and figure out a way to get the logs back faster to the primary archive path.

    One of the other things that comes to mind is how frequently the os is recycled. We have found a regular recycle to be very effective.

    Hope this helps.

  5. #5
    Join Date
    May 2003
    Location
    Toronto
    Posts
    29
    Quote Originally Posted by cchattoraj
    Look at the value for softmax. Look at the size of logs. reduce the number of logs that db2 has to go through on activation.

    Also, ensure that the logs are available on faster disk. If you are archiving, you may want to look at what you are archiving to (disk/tape) and figure out a way to get the logs back faster to the primary archive path.

    One of the other things that comes to mind is how frequently the os is recycled. We have found a regular recycle to be very effective.

    Hope this helps.
    What does "how frequently the os is recycled" mean?

  6. #6
    Join Date
    Jan 2003
    Posts
    1,605
    "os recycled" probably means restart computer operating system.

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