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RE: datafiles space allocation algorithm

From: Christian Antognini <Christian.Antognini_at_trivadis.com>
Date: Fri, 6 Oct 2006 13:08:36 +0200
Message-ID: <F2C9CCA71510B442AF71446CAE8AEBAF615DD2@MSXVS04.trivadis.com>


Niall

> This is true for the straightforward case of one table on its own in
> its own ts but is affected by factors such as
>
> other objects also growing at the same time
> files having autoextend or not - especially if there is a mix in the
> same ts
> available 'holes' in the existing datafiles
>
> and so on.

I agree with you. I was just trying to explain from where the "round-robin" stuff comes from... No more no less.

> In general though I can't really see why, other than curiosity,
> anyone would care about where a next extent would be allocated these
> days. (just that it would be).

One more, I completely agree. Such stuffs, i.e. spreading extents over many files, were performed loooong time ago to spread data over many disks. Today, usually, it makes no more sense.

Cheers,
Chris

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Received on Fri Oct 06 2006 - 06:08:36 CDT

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