> -----Original Message----- > From: [EMAIL PROTECTED] > [mailto:[EMAIL PROTECTED] On Behalf Of Dave Taylor > Sent: Wednesday, December 13, 2006 2:27 PM > To: [email protected] > Subject: RE: [U2] UniVerse Personal Edition - Licensing >
[snip] > The least expensive option is to simply install your > production version of > Universe on a secondary machine without starting Universe on > the secondary > machine (so that you're only running that one licensed > version of Universe > on one machine at a time), configure it the same as your > primary machine, > install a second network card with the IP address of your > primary machine in > the secondary machine, reconnect your secondary machine to > the network using > the second NIC card after your primary machine is shutdown > and then restore > your last good backup on the secondary machine. This is essentially what we do by running UV on a 2-node linux HA cluster, but with the added benefit of real-time data replication. We're running Steeleye's Lifekeeper software to manage the cluster. If the primary node fails, the cluster software executes /etc/init.d/uv.rc on the secondary node to start UV. Users access the servers via a shared IP address that automatically moves to whichever node is active. Steeleye's annual maintenance charge last year was $900, but I'm not sure off the top of my head what we initially paid for the software. There is also a Lifekeeper version for Windows, and there are quite a few other commercial cluster options available for linux: http://wwnew.linux-ha.org/CommercialSoftware -John ------- u2-users mailing list [email protected] To unsubscribe please visit http://listserver.u2ug.org/
