About implementing Hyper-V virtual machine live migration on SFW storage


About implementing Hyper-V virtual machine live migration on SFW storage
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This chapter provides steps for configuring SFW Microsoft Hyper-V virtual machine live migration on a highly available failover cluster disk group resource.

Live migration of a Hyper-V virtual machine (VM) is achieved through the use of Microsoft Failover Clustering feature. Live migration significantly increases availability of the virtual machines during planned and unplanned downtime.

Live migration produces significantly less downtime for the virtual machines that are migrated. Users can have uninterrupted access to the migrating virtual machine. The guest operating system in the migrating virtual machine is unaware about the ongoing migration. In addition, physical host maintenance can be carried out with no effect on virtual machine availability; this maintenance can occur during normal business hours.

You can configure the SFW storage on which the virtual machine (VM) resides to support VM live migration between nodes of a Microsoft failover cluster.

Note:

If you upgrade SFW, and there is a disk group resource already configured in the cluster, then after the upgrade you must take the disk group resource offline and then restart the cluster service. FastFailOver attribute for the disk group resource is displayed on the Failover Cluster Manager snap-in. To successfully set it to True, configure SFW Fast Failover Configurations for Live Migration support which is between the cluster nodes, using the SFW Configuration Wizard for Microsoft Failover Cluster.