RE: datafile sizing question

I know that wuth 64 bit HP-UX and 64 bit Oracle RDBMS, I have no problems with 1 8GB file. I don't know much about Solaris, but I suppose the following will work:

nm $ORACLE_HOME/lib/libclntsh.so|grep lseek64

Results should be nonempty and look something like this:

__lseek64           |          |undef |code   |
__lseek64           |   6589540|uext  |stub   |
__lseek64           |   7173576|uext  |stub   |

That meens that lseek64 is used, as an external symbol, from the OS libraries. That, in turn, means that your oracle is using 64 bit routines and is, therefore, 64 bit itself and can handle large files.

> -----Original Message-----
> From: Rachel Carmichael [mailto:wisernet100_at_yahoo.com]
> Sent: Wednesday, September 25, 2002 12:33 PM
> To: Multiple recipients of list ORACLE-L
> Subject: datafile sizing question
>
>
> Okay, I'm about to create some locally managed tablespaces for some
> large partitioned tables. I plan on making each datafile 2GB, with an
> extent of 20M.
>
> What I've done other times when I use LMTs is add 64K to the
> file size,
> for the bitmap header, so that I don't waste most of an extent. But in
> those cases, the datafile size has been less than 2GB.
>
> We will be on Solaris 2.8, I know that the OS can handle files larger
> than 2GB but it makes me nervous to do this.
>
> I hate to waste most of 20M just for the bitmap header.
>
> Is my thinking way off? If you've been doing this sort of sizing (it's
> a data warehouse, yes), what have you done?
>
> thanks!
>
> Rachel
>
>
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