Users Guide

14 Clustering Implementations for High Availability

Planned Failover (Quick Migration)

To accommodate the planned downtime of a server, the administrator can

choose to move all the VMs from that server to the other servers in the Hyper-

V Host Cluster. Here is a high-level workflow of the VM migration process

during planned failover:

VM in the originating node is placed in save state (the contents of memory

are saved to files located on SAN storage)

SAN storage disk ownership is transferred from the originating node to the

destination node

VM is started on the destination node and state is restored from SAN

storage

Figure 2-4. Hyper-V Host Cluster before Migrating