Hi Lisa,
I worked on a very large database in Mexico City and found that the reuse
statement with existing files took 3 times longer than starting from
scratch. Maybe some of the internals people could shed some light on this
phenom.
- Lisa_Koivu_at_gelco.com wrote:
>
> My large db that I hosed yesterday has 6 properly sized tablespaces -
> ~8GB each.
> We are using Veritas quick i/o on Solaris 2.6, E10000 domain.
> Still, one create tablespace statement, with all 4 2GB datafiles in the
> datafile
> clause with reuse, takes about 15 minutes.
> This is no wimp machine and right now it's at my disposal.
>
> Does creating a tablespace with large datafiles always take this long?
> I'm
> curious what Oracle is doing in the background - is it formatting the
> blocks to
> it's liking? Scanning everything? Any insights are appreciated.
>
> Thanks
> Lisa
>
>
>
> --
> Author:
> INET: Lisa_Koivu_at_gelco.com
>
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Rocky Welch
Oracle DBA Consultant
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Received on Thu May 25 2000 - 13:21:44 CDT
