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    util o/14/1 doesn't have meaningful data; how to tell if AUTOETEND is ON

    • Article Type: General
    • Product: Aleph
    • Product Version: 19.01

    Description:
    I see the suggestion in various Aleph documents to use util o/14/1 to check the space in our tablespaces, but it seems that the figures shown there are not correct. They seem too low, and tablespaces often appear in the "TABLESPACE_WITHOUT_FREE_SPACE" section but we never see any indication of a problem in the server logs or batch job logs.

    Resolution:
    If a tablespace has "AUTOEXTEND ON" specified for it, then Oracle will automatically create a new datafile when it runs out of space in the tablespace.

    To see which datafiles have autoextend ON, you need to:

    1. login to unix as the oracle user,

    2. > sqlplus / as sysdba

    3. SQL> select substr(file_name,1,50), AUTOEXTENSIBLE from dba_data_files;

    If the tablespaces have AUTOEXTEND ON, then to determine whether there is sufficient space available, you must consider not only the freespace left in the tablespace as seen in util o/14/1, but the freespace (as seen in "df -k /xxxx") for the filesystem that the tablespace's datafiles reside on.

    Additional Information

    faq


    • Article last edited: 10/8/2013
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