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Thread: Datafile maintenance

  1. 11-10-2005, 02:58 PM #1
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    dbasan
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    Datafile maintenance

    I have few tablespaces where there are more than 3 datafiles per tablespace, Now i have a situation where i need to have just one datafile per tablespace.

    how do i eliminate the datafiles?

    Moving all the objects to a diff tablespace(single datafile) and drop the old tablespace. Is there any other way?
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  2. 11-10-2005, 03:09 PM #2
    jmodic
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    No other way. Silly request to have only one file per tablespace, though.
    Jurij Modic
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  3. 11-10-2005, 03:40 PM #3
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    dbasan
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    Quote Originally Posted by jmodic
    Silly request to have only one file per tablespace, though.
    Can you justify?

    LMT's,ASM's,RAID's doing their part one is more than having more...
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  4. 11-10-2005, 05:05 PM #4
    davey23uk
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    whats LMTs / ASM / RAID got to do with having more than one datafile?
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  5. 11-10-2005, 05:09 PM #5
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    dbasan
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    Quote Originally Posted by davey23uk
    whats LMTs / ASM / RAID got to do with having more than one datafile?

    Brief me Why more?

    Can't it be done best with one!
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  6. 11-10-2005, 05:51 PM #6
    davey23uk
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    not if you

    1) need to spread i/o across mutiples LUNs
    2) have a filesystem size limit
    3) dont want to restore massive files (for most people a file is the lowest unit of recovery )
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  7. 11-12-2005, 11:21 PM #7
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    dbasan
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    Quote Originally Posted by davey23uk
    not if you

    1) need to spread i/o across mutiples LUNs
    2) have a filesystem size limit
    3) dont want to restore massive files (for most people a file is the lowest unit of recovery )
    1) What's LUN? Would'nt the RAID take care of I/O issues.
    2) My datafile as of now has not reached 2gigs.

    May be i should have clearly put in more details abt my datafile earlier.
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  8. 11-14-2005, 03:11 PM #8
    serg1257
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    It's up to you.
    Why do you have to do anything (creating, moving, droping), just to get rid of datafiles?
    Working? Don't touch it.
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  9. 11-14-2005, 03:14 PM #9
    dba01
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    Inquiring minds!! Why do you need to do that?
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