I just gave a presentation on Live Migration at Tech Days 2009 in Montreal, in which I covered required storage options and I thought some people might want to get more details. A lot of people want to test or evaluate Live Migration and Failover Cluster but they often lack the network storage needed, say an iSCSI SAN. There is a solution available that few people have heard about but that can solve this, Windows Storage Server 2008. This version of Microsoft OS is normaly only for OEM’s selling storage appliances and solutions.

 However, if you have a Tech Net or MSDN subscription, you can download WSS08 and install it on a machine that meets the requirements. This is actualy great because it allows you to use a computer you might have that does not support Hyper-V but that has enough memory and some disk to be used. After installing Windows Storage Server 2008, you will want to install Microsoft iSCSI tools which will allow you to configure iSCSI targets on that box.

 You than have a system that you can use to test Failover Cluster, Hyper-V or other features requiring iSCSI storage. Note that in a corporate environment you will mostly use iSCSI or Fiber SAN to deploy those solutions. Also, Microsoft allow the use of Windows Storage Server 2008 for testing, training and development. You cannot use this in a production environment, the software license being only distributed to OEM partners.