[Herefordshire] High Availability Linux

[Julian Robbins]

Hi Chris

Theres a company in Brum (Open Minds) who use a lot of OSS software to 
do a full fail over system. The BBC and the Rover car plant use it.

I saw a demo at an IT Security conference last year.

If you want I can dig out the notes they gave out.

Julian

Chris Bond wrote:
> Hi,
> 
> Just wondering if anybody here has any experience with High Availability
> Linux?  I've just received three new servers to migrate my current exim
> setup too, I want to do it using high availability so there's no downtime
> though.
> 
> So far I've got the following:
> - Redhat 3.0 Enterprise
> - Redhat do there own clustering software however, im not sure if its what I
> want
> - /var/dspam and /home/mail need to be fully sych' incase of fallover, I
> could either do this using external scsi enclosure or using something like
> drbd.org
> - Mysql 4 - full replication to secondary box
> - Full service fallover, for bind, apache, exim, pop3, imap - the linux HA
> project with a heartbeat should be able todo this.
> - Want to advertise at least 2 hosts minimum in DNS so there's always a
> route for mail
> 
> - Im currently using gradwell.net service for backup mail, however, the
> third box I would like to put that at our office not the datacenter,
> therefore being able to run secondary dns, backup mx, full replication
> (prolly rsych) of data from main boxes as certain periods.
> 
> Any pointers as its quite a complex setup im trying to archive!  Should be
> fun setting it up though.  Im in no rush to replace the current mail servers
> as there currently coping very well, this is purely being put in for furture
> expansion and resilent.
> 
> Kind Regards,
> Chris Bond
> 
> 
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