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Veeam Management Pack Help Center  > Online KB >  vCenter Alarms > Veeam VMware: vSphere HA failover failed Alarm > NotEnoughResourcesToStartVmEvent


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Not enough resources to failover a VM.


vSphere HA does not have sufficient resources to complete VM failover in a VMware vSphere Cluster. The problem can have the following causes:

Hosts in the cluster are disconnected, not responding or are placed to the maintenance mode.
Hosts have a vSphere HA error.
Some of VMs in the cluster have much more memory and CPU resources reserved than other VMs.
There are no free slots in the cluster.


Check hosts connectivity and state.
Re-configure VMs to balance resource reservation.
Make sure that there are free slots in the cluster.


Refer to VMware Knowledge Base for more information about VM failover problems.

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