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Legacy Forums => Experienced User Forum => Topic started by: David Woolley on October 13, 2002, 03:34:48 AM

Title: Should Unison Pull or Push?
Post by: David Woolley on October 13, 2002, 03:34:48 AM

Hi

In my setup of mirroring a work ibay with an offsite server, (both running on SME 5.5) is there any advantage to the work site pushing to the offsite, or the offsite pulling updates from the work site.

I'm thinking that there may be some response difference in the event of failure of either computer or either DSL service?

Which server should have the synchronisation cron task?

Many thanks

David

Title: Re: Should Unison Pull or Push?
Post by: Rob Wellesley on October 14, 2002, 08:04:15 AM

With isp's/data costs - one usually pays at both ends - as opposed to say, telephone where only the call originator gets charged.

Also - can you share any info on how you are unison-ing between your hosts? This is something we need to do soon.

rob

Title: Re: Should Unison Pull or Push?
Post by: David Woolley on October 14, 2002, 11:14:14 AM

Rob Wellesley wrote:
>
> With isp's/data costs - one usually pays at both ends - as
> opposed to say, telephone where only the call originator gets
> charged.

In my setup, both ends are dsl with unmetered data costs,.  I was enquiring more from a reliability perspective.
>
> Also - can you share any info on how you are unison-ing
> between your hosts? This is something we need to do soon.

Check out

http://www.star-support.com/sme/Linux-HA/SME%20High%20Availability%20How-To.html

This howto really describes running two local servers as a fault tolerant pair, but if you start at section B, this gives instructions for unison-ing over any ip connection.

The only trick in the procedure for me was establishing an ssh connection  using the command prompt  ( ssh ) in order that the server-manager panel buttons may then do their initial authentication.  But this is dealt with in the howto, and it works.


Good luck

David