CDM cannot read network metrics (QOS_NETWORK_*) in Ubuntu 16

Products

• DX Unified Infrastructure Management (Nimsoft / UIM)

Issue/Introduction

Ubuntu servers version 16.*  do not show CDM Network QOS metrics from cdm probe.
Looks like CDM does not send any QOS message for the The Network QOS Metrics below:

QOS_NETWORK_AGGREGATED_TRAFFIC
QOS_NETWORK_INBOUND_TRAFFIC
QOS_NETWORK_OUTBOUND_TRAFFIC

The qos is activated in Admin Console

Environment

UIM Any Version
CDM 6.30 or later
Ubuntu 16.*

Cause

If "sysstat" is not installed in the Ubuntu server, the probe won't gather these metrics. This is a prerequisite.

Resolution

step 1 :- apt install sysstat

step 2:- open "/etc/default/sysstat" using file editor and change ENABLED="false" to ENABLED="true"
            vim /etc/default/sysstat
            ----
# Should sadc collect system activity informations? Valid values
# are "true" and "false". Please do not put other values, they
# will be overwritten by debconf!
ENABLED="true"
----
step 3:- Change the collection interval from from every 10 minutes to every 2 minutes from file "/etc/cron.d/sysstat".(or based on your requirement).
           ----
vim  /etc/cron.d/sysstat
Change
5-55/10 * * * * root command -v debian-sa1 > /dev/null && debian-sa1 1 1
To
*/2 * * * * root command -v debian-sa1 > /dev/null && debian-sa1 1 1
            ----


 

Additional Information

https://techdocs.broadcom.com/us/en/ca-enterprise-software/it-operations-management/ca-unified-infrastructure-management-probes/GA/alphabetical-probe-articles/cdm-cpu-disk-memory-performance-monitoring/cdm-ac-configuration.html