A DataChannel is a software module that receives and processes
network statistical information from both SNMP and non-SNMP (BULK)
sources.
About this task
This statistical information is then loaded into a database
where it can be queried by SQL applications and captured as raw data
or displayed on a portal in a variety of reports.
Typically,
collectors are associated with technology packs, a suite of Tivoli®
Netcool® Performance Manager programs
specific to a particular network device or technology. A technology
pack tells the collector what kind of data to collect on target devices
and how to process that data. See the Technology Pack Installation
Guide for detailed information about technology packs.
To
add a DataChannel:
Procedure
- In the Logical view, right-click the DataChannels folder
and select Add DataChannel from the menu. The
Configure the DataChannel window is displayed.
- Using the drop-down list of available hosts, select the
machine that will host the DataChannel (for example,
corinth).
- Accept the default channel number (for example, 1).
- Click Finish.
The
Topology Editor adds the new DataChannel (for example, DataChannel
1) to the Logical view.
- Highlight the DataChannel to display its properties. Note
that the DataChannel always installs and runs as the default user
for the host (the Tivoli
Netcool Performance Manager UNIX
username,
pvuser). Review the other property values
to make sure they are valid. For the complete list of properties for
this component, see the Properties Reference Guide. The
DataChannel has the following subelements:
- Daily Loader x
- Processes 24 hours of raw data every day, merges it together,
then loads it into the database. The loader process provides statistics
on metric channel tables and metric tablespaces.
- Hourly Loader x
- Reads files output by the Complex Metric Engine (CME) and loads
the data into the database every hour. The loader process provides
statistics on metric channel tables and metric tablespaces.
The Topology Editor includes the channel number
in the element names. For example, DataChannel 1 would have Daily
Loader 1 and File Transfer Engine 1.
Note: When you add DataChannel
x, the Problems view shows that the Input_Components property for
the Hourly Loader is blank. This missing value will automatically
be filled in when you add a DataLoad collector (as described in the
next section) and the error will be resolved.