6.3

Alert Definition Symptoms Recommendations
Host has memory contention caused
by more than half of the virtual
machines.
Symptoms include all of the
following:
n
! Host inside a cluster
n
Host memory workload at
warning/immediate/critical level
n
Host memory contention at
warning/immediate/critical level
n
> 50% of child virtual machines
have [ Virtual machine memory
workload at
warning /immediate/critical
level ]
1 Use vSphere vMotion to migrate
some virtual machines with high
memory workload to other hosts
that have available memory
capacity.
2 Upgrade the host to use a host that
has larger memory capacity.
Host has memory contention due to
overpopulation of virtual machines.
Symptoms include all of the
following:
n
! Host inside a cluster
n
Host memory workload at
warning/immediate/critical level
n
Host memory contention at
warning/immediate/critical level
n
Zero child virtual machines have
[ Virtual machine memory
workload at warning/
immediate/critical level ]
1 Use vSphere vMotion to migrate
some virtual machines with high
memory workload to other hosts
that have available memory
capacity.
2 Upgrade the host or use a host that
has larger memory capacity.
Host in a non-DRS cluster has memory
contention caused by less than half of
the virtual machines.
Symptoms include all of the
following:
n
Host inside a cluster
n
[ ! DRS Enabled OR ! DRS fully
automated ]
n
Host memory contention at
warning/immediate/critical level
n
> 0 child virtual machines have
[ Virtual machine memory
workload at warning/
immediate/critical level ]
n
<= 50% of child virtual machines
have [Virtual machine memory
workload at warning/
immediate/critical level ]
Use vSphere vMotion to migrate some
virtual machines with high memory
workload to other hosts that have
available memory capacity.
Host in a non-DRS cluster has memory
contention caused by more than half of
the virtual machines.
Symptoms include all of the
following:
n
Host inside a cluster
n
[ ! DRS Enabled OR ! DRS fully
automated ]
n
Host memory workload at
warning/immediate/critical level
n
Host memory contention at
warning/immediate/critical level
n
> 50% of child virtual machines
have [ Virtual machine memory
workload at
warning /immediate/critical
level ]
1 Use vSphere vMotion to migrate
some virtual machines with high
memory workload to other hosts
that have available memory
capacity.
2 Upgrade the host or use a host that
has larger memory capacity.
Chapter 3 Alert Definitions in vRealize Operations Manager
VMware, Inc. 133