6 Under Cluster Settings, select the check boxes for options that you want to disable or enable.
Option Description
Distributed Power Management (DPM) VMware DPM monitors the resource use of the running virtual machines in the
cluster. If sufficient excess capacity exists, VMware DPM recommends moving
virtual machines to other hosts in the cluster and placing the original host into
standby mode to conserve power. If the capacity is insufficient, VMware DPM
might recommend returning standby hosts to a powered-on state.
If you do not choose to disable DPM, Update Manager skips the cluster on which
VMware DPM is enabled. If you choose to temporarily disable VMware DPM,
Update Manager disables DPM on the cluster, remediates the hosts in the cluster,
and re-enables VMware DPM after remediation is complete.
High Availability (HA) admission
control
Admission control is a policy used by VMware HA to ensure failover capacity
within a cluster. If HA admission control is enabled during remediation, the virtual
machines within a cluster might not migrate with vMotion.
If you do not choose to disable HA admission control, Update Manager skips the
cluster on which HA admission control is enabled. If you choose to temporarily
disable HA admission control, Update Manager disables HA admission control,
remediates the cluster, and re-enables HA admission control after remediation is
complete.
Fault Tolerance (FT) FT provides continuous availability for virtual machines by automatically creating
and maintaining a secondary virtual machine that is identical to the primary virtual
machine. If you do not choose to turn off FT for the virtual machines on a host,
Update Manager does not remediate that host.
Enable parallel remediation for hosts in
cluster
Update Manager can remediate hosts in clusters in a parallel manner. Update
Manager continuously evaluates the maximum number of hosts it can remediate
in parallel without disrupting DRS settings. If you do not select the option,
Update Manager remediates the hosts in a cluster sequentially.
By design only one host from a vSAN cluster can be in a maintenance mode at
any time. Update Manager remediates hosts that are part of a vSAN cluster
sequentially even if you select the option to remediate them in parallel.
Migrate powered off and suspended
virtual machines to other hosts in the
cluster, if a host must enter
maintenance mode
Update Manager migrates the suspended and powered off virtual machines from
hosts that must enter maintenance mode to other hosts in the cluster. You can
select to power off or suspend virtual machines before remediation in the
Maintenance Mode Settings pane.
7 Click OK.
These settings become the default failure response settings. You can specify different settings when you
configure individual remediation tasks.
Enable Remediation of PXE Booted ESXi Hosts in the
vSphere Web Client
You can configure Update Manager to let other software initiate remediation of PXE booted ESXi hosts.
The remediation installs patches and software modules on the hosts, but typically the host updates are
lost after a reboot.
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