About the Update Manager Process
Upgrading vSphere objects and applying patches or extensions with Update Manager is a multistage
process in which procedures must be performed in a particular order. Following the suggested process helps
ensure a smooth update with a minimum of system downtime.
The Update Manager process begins by downloading information (metadata) about a set of patches,
extensions, and virtual appliance upgrades. One or more of these patches or extensions are aggregated to
form a baseline. You can add multiple baselines to a baseline group. A baseline group is a composite object
that consists of a set of nonconicting baselines. You can use baseline groups to combine dierent types of
baselines, and scan and remediate an inventory object against all of them as a whole. If a baseline group
contains both upgrade and patch or extension baselines, the upgrade runs rst.
A collection of virtual machines, virtual appliances, and ESXi hosts or individual inventory objects can be
scanned for compliance with a baseline or a baseline group and later remediated. You can initiate these
processes manually or through scheduled tasks.
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Conguring the Update Manager Download Source on page 16
You can congure the Update Manager server to download patches, extensions, and virtual appliance
upgrades either from the Internet or from a shared repository. You can also import patches and
extensions manually from a ZIP le.
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Downloading Updates and Related Metadata on page 16
Downloading virtual appliance upgrades, host patches, extensions, and related metadata is a
predened automatic process that you can modify. By default, at regular congurable intervals,
Update Manager contacts VMware or third-party sources to gather the latest information (metadata)
about available upgrades, patches, or extensions.
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Importing ESXi Images on page 18
You can upgrade the hosts in your environment to ESXi 6.5 by using host upgrade baselines. To create
a host upgrade baseline, you must rst upload at least one ESXi 6.5 .iso image to the Update Manager
repository.
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Creating Baselines and Baseline Groups on page 18
Baselines contain a collection of one or more patches, extensions, service packs, bug xes, or upgrades,
and can be classied as patch, extension, or upgrade baselines. Baseline groups are assembled from
existing baselines.
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Aaching Baselines and Baseline Groups to vSphere Objects on page 20
To use baselines and baseline groups, you must aach them to selected inventory objects such as
container objects, virtual machines, virtual appliances, or hosts.
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Scanning Selected vSphere Objects on page 20
Scanning is the process in which aributes of a set of hosts, virtual machines, or virtual appliances are
evaluated against all patches, extensions, and upgrades from an aached baseline or baseline group,
depending on the type of scan you select.
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Reviewing Scan Results on page 21
Update Manager scans vSphere objects to determine how they comply with baselines and baseline
groups that you aach. You can lter scan results by text search, group selection, baseline selection,
and compliance status selection.
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Staging Patches and Extensions to Hosts on page 21
You can stage patches and extensions before remediation to ensure that the patches and extensions are
downloaded to the host. Staging patches and extensions is an optional step that can reduce the time
during which hosts are in maintenance mode.
Chapter 1 Understanding Update Manager
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