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SubjectRe: (fwd) Re: [RFC] mount flag "direct"
On Wed, Sep 04, 2002 at 11:02:07AM +0200, Peter T. Breuer wrote:
> > There is more to coherency and preserving fs structure than "don't cache
>
> Sure. So what? What's wrong with a O_DIRDIRECT flag that makes all
> opens retrace the path from the root fs _on disk_ instead of from the
> directory cache?

Did you read Antons post about this?

> I suggest that changing FS structure is an operation that is so
> relatively rare in the projected environment (in which gigabytes of
> /data/ are streaming through every second) that you can make them as
> expensive as you like and nobody will notice.

Why do you want a filesystem if you're not going to use any filesystem
operations? If all you want to do is to split your shared device into
multipe (static) logical units use a logical volume manager.

If you _do_ need a filesystem, use something like gfs. Have you looked
at it at all?



--
Ragnar Kjørstad
Big Storage
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