Paul Gregory | 16 July 2012
With Hyper-V 3.0 really starting to reach maturity and feature parity with products from Citrix and VMware I thought I would highlight some of these features with a new blog and video series. Today is the turn of Live Migration.
Live Migration having arrived in Windows Server 2008 R2 provided the ability to move virtual machines around between Hyper-V hosts in a planned fashion (just like vMotion from VMware). With Hyper-V 3.0 Microsoft have completely reviewed this feature and broke all restrictive rules. Previously features of this type had a number of restrictions for example share storage or clustering was required. With Hyper-V 3.0 none of this is true. Virtual machines can be moved from any source to destination. The source and destination computers do not have to share anything except access to the same IP subnet so the moved virtual machine can maintain network connectivity. So yes you are correct Live Migration in Hyper-V 3.0 does allow a virtual machine running on a host with only directly Attached Storage (DAS) to be migrated to another host with only DAS without any perceived downtime for the users that are using the virtual machine. I am sure we will see others adding this feature soon!!
So really this blog has also mentioned a new feature we have Storage Live Migration.
If you would like to see this in action please see my YouTube channel here.