Re: 7.4?

On Thu, 27 Feb 2003, Andrew Sullivan wrote:

> On Thu, Feb 27, 2003 at 02:21:23PM -0700, Ed L. wrote:
> > 
> > Unfortunately, dbmirror does go through all the iterations, even if 
> 
> So does dbmirror keep a copy of the row somewhere?  Doesn't that add
> a lot to i/o?
> 
> A
> 
> 
	Ok we seam to have quite a lot of talk about replication options 
here. 
	I need to implement one sooner or later.... 
	Which is best seams to be on requirments and not much else. So 
perhaps a list of whats currently available, its requirements and what it 
is best for would be good on the web site. Here are my requirements.

1> MultiMaster (Database involves quite a lot of writes)
2> 24 x 7 operation so one server must be able to cope while the other 
vacuums, backups etc,
3> Consistant all machines that are up must look the same when in master 
usage. 

	The problem as far as I can see with sycronse systems is that they 
can't cope with down time and that in my book is the primary reason for 
having replication. 

Peter Childs
P.S. A Hot Spare might actually be the best answer.... `