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Re: IDEA - put redo logs onto a non-volatile RAM DISK?

From: Mark Tompkins <mdtompkins_at_home.com>
Date: Thu, 24 May 2001 22:58:00 +0100
Message-ID: <3B0D83E8.EC05B1A3@home.com>

If the RAM disk was 1 Gig, then the archived redo logs, and redo logs, could be placed on the same mirror, with minimal concern for contention. That should make things a lot faster, should it not?

Chuck Hamilton wrote:

> > He talked about *non-volatile* RAM DISK. So there should not be
> > problem against physical failure.
> >
> > But the redolog will probably be to fast. The dbwriter won't keep up
> > and there will be 'checkpoint not finished'
>
> So what's the problem? Logs are always supposed to be on the fastest
> devices, and because of their sequential nature, lgwr will always be faster
> than dbwr. What difference does it make if it's now 10x faster insead of 5x
> faster? Dbwr has always played catch-up and always will.
Received on Thu May 24 2001 - 16:58:00 CDT

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