Satellites
81
n
ov
do
cx (e
n)
16
Ap
ril 20
10
When you enable a Collection role on a device, you can assign any ZENworks Primary Server as its
parent server. The Collection role device uploads information only to its parent Primary Server. If
the parent Primary Server is not a child of another Primary Server, it writes the information directly
to the database. If the parent Primary Server is a child of another Primary Server, it passes the
information up to its parent Primary Server, which writes the information to the database.
A Satellite with the Collection role collects inventory information, messages (errors, warning,
informational, and so forth), and policy and bundle statuses, then rolls that information up to its
parent Primary Server, which in turn either writes to the database directly or passes the information
to its parent Primary Server, which does the database writing. The role includes a roll-up schedule
that you can edit.
On the managed device, the Collection module is inactive until you promote the managed device to
be a Satellite with the Collection role or until the Collection role is added to an existing Satellite.
7.1.3 Understanding the Content Role
Content consists of bundles, policies, system updates (ZENworks Server and Adaptive Agent), and
patches.
If you want to improve content access for a group of devices without creating another Primary
Server, you can create the Content role on a device. For example, if you have devices that are
accessing a Primary Server outside of their network segment, you can create the Content role on a
device within the network segment to service those devices.
The Content role provides the same content delivery service as a Primary Server but requires only
the Content role module that is installed with the ZENworks Adaptive Agent. The module is
inactive until you enable it on the managed device.
When you enable the Content role on a device, you assign a Primary Server as its parent content
server. The Content role Satellite downloads content only from its parent Primary Server. Therefore,
any content you want hosted on a Content role Satellite must also be hosted on its parent Primary
Server.
On the managed device, the Content module is inactive until you promote the managed device to be
a Satellite with the Content role or until the Content role is added to an existing Satellite.
7.1.4 Understanding the Imaging Role
The Imaging role installs the Imaging services and adds the Imaging role to the device. With this
role, the device can be used as an Imaging server to perform all Imaging operations, such as taking
an image and applying an image within or across subnets by using unicast or multicast imaging.
The Imaging role can be used to achieve load balancing for the Primary Server, and also to support
cross-subnet imaging. The Satellite uses ZENworks Control Center to communicate with the
Primary Server for Imaging operations in the Auto mode.
On the managed device, the Imaging module is inactive until you promote the managed device to be
a Satellite with the Imaging role or until the Imaging role is added to an existing Satellite. This
activates the Imaging services on the device, and enables you to perform the Imaging operations in
auto and maintenance mode. The Imaging services installed on the device include TFTP, Preboot
policy, pbserv, and proxy DHCP. All services, except for proxy DHCP, are automatically started.
You can manually start or stop the proxy DHCP service from ZENworks Control Center.
