Fedora directory users - Dec 2009 - [389-users] # of master-master servers - do I need 4?

Hey folks,

I keep seeing reference to 4 servers in all the docs.   Is that a
magic # of some sort?  i.e. Do I need to have 4?  Or can I have 2 or
3?

What I want to do is this :
- get main server set up here in the office
- get backup set up in office
- get another set up at remote site, on other end of VPN
- remove backup in office

So basically - have 2, then 3, then 2 again.

Seems reasonable to me, but what do I know?

I want to have the office backup just for redundancy because it could
be a few months before I can get other things in place to have this
going at the remote site.   But I really want to roll out ASAP in the
office now that I have the basics going (minus replication)

thanks,
-Alan

-- 
“Don''t eat anything you''ve ever seen advertised on TV”
         - Michael Pollan, author of "In Defense of Food"

Alan McKay wrote:
> Hey folks,
>
> I keep seeing reference to 4 servers in all the docs.   Is that a
> magic # of some sort?  i.e. Do I need to have 4?  Or can I have 2 or
> 3?
>   
With 389 there is no limitation - you can have as many or as few as you 
want.  The limitation of 4 only applies to Red Hat Directory Server and 
even then only applies to tech support - the only real limit is 65,534 
masters, but you will usually hit CPU and RAM resource limits before
that.
> What I want to do is this :
> - get main server set up here in the office
> - get backup set up in office
> - get another set up at remote site, on other end of VPN
> - remove backup in office
>
> So basically - have 2, then 3, then 2 again.
>
> Seems reasonable to me, but what do I know?
>   
That should be fine.
> I want to have the office backup just for redundancy because it could
> be a few months before I can get other things in place to have this
> going at the remote site.   But I really want to roll out ASAP in the
> office now that I have the basics going (minus replication)
>
> thanks,
> -Alan
>
>