> Well.... That's a different approach... But still we will need an APC or > whatever to make fence... > Why this is so mandatory? With XenServer this kind of hardware is not > necessary...
Well, that is what they claim - in reality, a working fencing infrastructure is mandatory for reliable HA. Else, you always have the risk that a VM runs on 2 nodes at the same time. Also, a single, centralized storage is a single point of failure (SPOF), so I would not talk about HA in above scenario. Anyways, there are different solution - so feel free to choose what you like most ;-) But you are probably wrong if you think all you need are 2 nodes and one cheap central storage. A minimum requirement is - redundant networking - redundant switch infrastructure - redundant power supplies - redundant storage - UPS for all devices So the need for the additional fencing infrastructure is quite negligible here (cheap add-on to UPS devices). HA is nothing you get for free ;-) _______________________________________________ pve-user mailing list [email protected] http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-user
