6.3

Alert Definition Symptom Recommendations
One or more ports are in link down
state.
Symptoms include all of the
following:
n
Port is connected
n
One or more ports are in a link
down state
Verify that there is physical
connectivity for the NICs on the host.
Verify the admin status on the port.
Virtual Machine Alert Definitions
The vCenter adapter provides alert denitions that generate alerts on the virtual machine 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 Symptom Recommendations
Virtual machine is experiencing
memory compression, ballooning or
swapping due to memory limit.
n
Virtual machine memory limit is
set AND
n
Virtual machine memory
demand exceeds congured
memory limit AND
n
[Virtual machine memory is
compressed OR
n
Virtual machine is using swap
OR
n
Virtual machine memory
ballooning is at
warning/immediate/critical level]
AND
n
Recommended virtual machine
memory size
Increase the memory limit for the
virtual machine to match the
recommended memory size.
Alternatively, remove memory limit
for the virtual machine.
Virtual machine has CPU contention
caused by swap wait.
Virtual machine CPU swap wait is at
warning/Immediate/Critical level.
1 Upgrade the host with more
memory.
2 Use vSphere vMotion to migrate
this virtual machine to a dierent
host or cluster.
3 Set memory reservations for the
virtual machine to prevent
swapping.
Virtual machine has CPU contention
caused by IO wait.
Virtual machine CPU I/O wait is at
warning/immediate/critical level.
Increase the datastore I/O capacity for
the connected data stores to reduce
CPU I/O wait on the virtual machine.
Virtual machine has unexpected high
CPU workload.
Symptoms include all of the
following:
n
Virtual machine CPU demand at
warning/immediate/critical level
n
Anomaly is starting
to/moderately/critically high
1 Check the guest applications to
determine whether high CPU
workload is an expected behavior.
2 Add more CPU capacity for this
virtual machine.
vRealize Operations Definitions for Metrics, Properties, and Alerts
144 VMware, Inc.