6.7

Table Of Contents
vSphere HA Agent is in the Host Failed State
The vSphere HA agent on a host is in the Host Failed state. User intervention is required to resolve the
situation.
Problem
Usually, such reports indicate that a host has actually failed, but failure reports can sometimes be
incorrect. A failed host reduces the available capacity in the cluster and, in the case of an incorrect report,
prevents vSphere HA from protecting the virtual machines running on the host.
Cause
This host state is reported when the vSphere HA master host to which vCenter Server is connected is
unable to communicate with the host and with the heartbeat datastores that are in use for the host. Any
storage failure that makes the datastores inaccessible to hosts can cause this condition if accompanied
by a network failure.
Solution
Check for the noted failure conditions and resolve any that are found.
vSphere HA Agent is in the Network Partitioned State
The vSphere HA agent on a host is in the Network Partitioned state. User intervention might be required
to resolve this situation.
Problem
While the virtual machines running on the host continue to be monitored by the master hosts that are
responsible for them, vSphere HA's ability to restart the virtual machines after a failure is affected. First,
each master host has access to a subset of the hosts, so less failover capacity is available to each host.
Second, vSphere HA might be unable to restart a FT Secondary VM after a failure. See also vSphere
Availability troubleshooting.
Cause
A host is reported as partitioned if both of the following conditions are met:
n
The vSphere HA master host to which vCenter Server is connected is unable to communicate with
the host by using the management (or VMware vSANā„¢)network, but is able to communicate with that
host by using the heartbeat datastores that have been selected for it.
n
The host is not isolated.
A network partition can occur for a number of reasons including incorrect VLAN tagging, the failure of a
physical NIC or switch, configuring a cluster with some hosts that use only IPv4 and others that use only
IPv6, or the management networks for some hosts were moved to a different virtual switch without first
putting the host into maintenance mode.
vCenter Server and Host Management
VMware, Inc. 204