VMware vCenter Server Heartbeat, The Concept, Deployment And Considerations!
One of the great products from VMware, yet least talked about, is the vCenter Server Heartbeat. I’ve been always fascinated with anything that helps achieve high-availability and uptime for applications, and our product here under the spotlight is no exception to that. Unfortunately there is no evaluation version for it available, so no videos this time, only screenshots (extracted from the VMworld 2009 session)
Despite that fact that you can use VMware’s HA to protect your vCenter Server, this can be achieved only when you run it as a VM, while many customers and deployments out there (me included) still use the vCenter as a physical server. Even in case of using VMs, things like HA and FT (available in vSphere4) will only protect you from hardware failures, not an application or OS crashing. From here the vCenter HB (my own acronym!) is appealing! Whether it’s your vCenter service, network connectivity or even the OS, the vCenter HB can protect you from any failure that may occur through these elements.