Hyper-V: live migration

[guest]

I saw the white paper. it describes that "On a given server running Hyper-V, only one live migration (to or from the server) can be in progress at a given time. This means that you cannot use live migration to move multiple virtual machines simultaneously."


it is pity that, there is only one live migration could be activated during the system disaster.


For example, there are two hosts. Each host there are 3 VMs. If Host A is down, do you mean only one VMs could survive? the rest of two shoud wait for the first one.

[guest]

There are a couple of methods of failover:

1. Live Migration: This is a controlled migration where the VM is moved from one host to another without having an outage.
2. Quick Migration: This is a controlled migration where the servers save their state and migrate to another host, then resume operation.
3. Hard Failover: If a host system has a hard failure (like a power failure), the servers will migrate automatically to another host and boot. The servers migrated in this instance will function as though they also had a hard failure.

[guest]

No if a host goes down then it's a failover not a live migration. Live migration is not used for DR but to move a VM from one host to another to perform scheduled maintenance on the given host system without interruption.


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