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Thread: need more redo logs?

  1. #1
    Join Date
    Nov 2000


    How do I find out if I need more redo logs groups/members or not? I would like to know if my redo logs groups/members are sufficient or I need to add more.

  2. #2
    Join Date
    Jun 2000
    Madrid, Spain

  3. #3
    Join Date
    Aug 2001
    Waterloo, On
    In general
    Minimum 2 log groups. But advisable to have more since you might have a condition where one log group is still 'Active' when the other one is full and a switch is required. If more than one log groups consistently show an 'active' status in V$logfile, you need to add more.
    No. of members in each group will depend upon no. of disk drives you have, since each member should be (not necessary) on seperate disks. I think 3 members per log group should suffice for multiplexing.

    Raminder Singh

    Oracle Certified DBA: Oracle 8i, 9i

    Mail me at

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