fragment question
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Thread: fragment question

  1. #1
    Join Date
    Jan 2001
    Posts
    72

    Unhappy

    Hi,
    After running the script below, can any body tell me at what point the FSFI is not allowed to fall? I mean at what point is the FSFI considered to be accepted and unacceptable

    select tablespace_name,
    sqrt(max(blocks)/sum(blocks))* (100 /sqrt(sqrt(count(blocks)))) FSFI
    from dba_free_space
    group by tablespace_name
    order by 1;

  2. #2
    Join Date
    Oct 2000
    Posts
    80
    This formulation comes from Loney and Theriault's DBA Handbook. They say over 30 should be OK
    John Doyle

  3. #3
    Join Date
    Jan 2001
    Posts
    72
    thanks for that

  4. #4
    Join Date
    Jan 2001
    Posts
    26
    What is FSFI BTW ?

    Thanks.

  5. #5
    Join Date
    Feb 2000
    Location
    Washington DC
    Posts
    1,843
    Free Space Fragmentation Index if I'm not wrong.

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