6.3

Host System Alert Definitions
The vCenter adapter provides alert denitions that generate alerts on the Host System objects in your
environment..
Health/Symptom-Based
These alert denitions have the following impact and criticality information.
Impact
Health
Criticality
Symptom-based
Alert Definition Symptoms Recommendations
Host has CPU contention caused by
less than half of the virtual machines.
Symptoms include all of the
following:
n
! Host inside a cluster
n
Host CPU contention is at
warning/immediate/critical level
n
> 0 child virtual machines have
[ Virtual machine CPU demand
at warning /immediate/critical
level ]
n
<= 50% of child virtual machines
have [Virtual machine CPU
demand at warning/
immediate/critical level ]
Use vSphere vMotion to migrate some
virtual machines with high CPU
workload to other hosts that have
available CPU capacity.
Host has CPU contention caused by
more than half of the virtual machines.
Symptoms include all of the
following:
n
! Host inside a cluster
n
Host CPU contention is at
warning/immediate/critical level
n
Host CPU demand at
warning/immediate/critical level
n
> 50% of child virtual machines
have [Virtual machine CPU
demand at warning/
immediate/critical level ]
1 Use vSphere vMotion to migrate
some virtual machines with high
CPU workload to other hosts that
have available CPU capacity.
2 Upgrade the host or use a host that
has larger CPU capacity.
Host has CPU contention due to
overpopulation of virtual machines.
Symptoms include all of the
following:
n
! Host inside a cluster
n
Host CPU contention is at
warning/immediate/critical level
n
Host CPU demand at
warning/immediate/critical level
n
Zero child virtual machines have
[ Virtual machine CPU demand
at warning/ immediate/critical
level ]
1 Use vSphere vMotion to migrate
some virtual machines with high
CPU workload to other hosts that
have available CPU capacity.
2 Upgrade the host or use a host that
has larger CPU capacity.
Chapter 3 Alert Definitions in vRealize Operations Manager
VMware, Inc. 131