Re: Question about many Oracle Data Files

From: K Gopalakrishnan <kaygopal_at_yahoo.com>
Date: Mon, 11 Jun 2001 10:23:48 -0700
Message-ID: <F001.0032457D.20010611103615@fatcity.com>

Hi !

> Someone posted a warning that too many data files
> might actually hurt
> performance in that it might inflate the amount of
> work to be done at SCN
> update time.
>
> How would I test this? What "wait value" might be
> too high to indicate that
> this is taking too long?

How many is too many?

Okay. Normally the single block write wait events (control file/ data file) are the writes which updates the header and parallel writes usually writes the actual blocks. So theroitically if you have contention in single writes (wait event) you can conclude this many is too many :)

Hope this does not confuse you !!

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Have a nice day !!

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Best Regards,
K Gopalakrishnan,
Bangalore, INDIA.

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Author: K Gopalakrishnan
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Received on Mon Jun 11 2001 - 12:23:48 CDT