You might have read about that recently launched a new product called . This comes as an add-on for Citrix Xenserver and it can protect virtual machines from hardware failures. There are 3 levels of protection, and one of them will come for free with 4.2!
Today I attended a demonstration of Marathon EverRun VM. I had heard of Marathon Technologies before and I knew it was expensive. But today I saw Marathon EverRun VM and it will have pretty competitive pricing comparing to VMware. Besides that, it’s a better feature than HA from VMware.
With Marathon EverRun VM there will be 3 levels of protection:
Level 1: Basic Failover (will come free with Xenserver 4.2, probably September)
When one host crashes, the virtual machine will start up on the other host.
Level 2: component-level fault tolerance (available now)
Creates a virtual machine on top of 2 other virtual machines. The Marathon-VM runs on 1 virtual machine and synchronises IO to the other virtual machine. If, for example, the disk fails in one virtual machine, the disk in the other virtual machine will take over.
Pricing: single server (max 4 socket) including Xenserver Enterprise: