Oracle OFA, Tablespaces and Redo Logs?

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  • Hari Om

    Oracle OFA, Tablespaces and Redo Logs?

    Hi Gurus,

    I was reading Oracle DBA Handbook and read article about OFA - Optimal
    Flexible Architecutre and it showed what are the different tablespaces
    used in any db. These are: SYSTEM, UNDOTBLSP, TEMP, INDX, TOOLS,
    USERS, DATA.

    Q1) What should be the approximate size for each tablespace....? How
    many MIN/MAX Extents should I need to allocate....?

    Q2) What would be the difference between DATA Tablespace and USERS
    Tablepsace?


    I was reading Oracle DBA Handbook- Kevin Loney and have some
    questions on it:
    In one of the section (Chapter 4 - Section - Online Redo Log Files) it
    says: "DBA's need to make sure that the online redo log files are
    mirrored by some means" and I totally agree with that. It means (if I
    am right) if my Redo Log Group has 3 files then these files should be
    on different disks.

    However, later on in the same chapter (Chapter 4, Section Third
    Iteration) the book says:"The online redo logs should be placed
    together on the same disks" do'nt you think it is contrary to the
    above statement - isin't it misleading....? Kindly clarify orcorrect
    me!

    Thanks!
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