computing device, such as (but not limited to), a server, virtual server, a
slave server, database server, workstation, PC, network device, storage device,
sensor, tablet or mobile device.”
Hosts are effectively
logical end-points, meaning if you wish to monitor an Oracle database on a Host you add the Host. Conversely if you wish to monitor an VMware vSphere server
running 64 guests, you can add that as a Host or you could add each guest individually as a Host, allowing the
monitoring and alerting on the per-guest metrics such as CPU usage and so
addition and deletion of Hosts is done primarily via the ‘Hosts’ section with
You can also choose
to add Hosts via an Auto Discovery scan,
outlined in Section 5. The main benefit of Auto Discovery being the bulk
addition of Hosts discovered via a network scan, compared to the Hosts settings
page where Hosts are added on an individual basis. However, Hosts can be
bulk-edited once added.
The Host setting
section comprises of a sortable/filterable grid view containing all of the Hosts
within the Opsview Monitor system. Each column header can be filtered on
relevant information, i.e. a User can filter the list to show only Hosts that
have a given Host template applied, or show only Hosts that are members of a
given Host Group.
In the above
screen we have the Host settings page of a newly installed Opsview Monitor
system. The screen contains a range of information and options.
In the top right,
there is a drop-down menu allowing the User to configure how many Hosts are
visible on the page. There are options for ’25, 50, 100 and 200’ Hosts per
page. There is also a string of text highlighting the limit of Hosts that can
added to this system; this information is derived from the Opsview Monitor
In the top left,
there are four buttons:
Add new: This button loads a modal window which allows you to add a new Host.
Bulk edit: This button loads a modal window allowing the bulk-editing of
selected Hosts. The selection of the Hosts is performed once the bulk edit
window is loaded.
Export: This button loads a drop down window offering three options: .csv, json and xml. When one of these options is chosen the list of Hosts and
their relevant data (Host Group, Host template(s), etc) is exported in the
Clear filters: This button will clear all filters applied
via the column headers.
On the bottom row are
the standard Opsview Monitor pagination controls. These controls enable you to
move quickly between the paginated lists when a large number of Hosts are in
The Host list page by
default will list all Hosts within Opsview Monitor that your role can
see, as shown below:
However, when one or more Hosts have been modified and are in a ‘pending’
state, i.e. changes have been applied but a ‘Reload’ hasn’t been performed, the
Host list page will have a new section added at the top which will display all
This allows you to
easily see which Hosts have been modified and are pending a reload, and is
especially useful if you are searching for the 10 modified Hosts out of a list
of 5000+. The Hosts pending a reload will also have the yellow ‘pending’ badge
in the far right column and there is a link to the ‘Reload’ action page at the
bottom of the ‘Modified Hosts’ section, for ease of use.