Dell OS10 SNMP

Monitoring Connector Assets

Monitored Objects

• Dell OS 10 including CPU, Disk Usage, Hardware, Inodes, Interfaces, Load, Memory, Swap and Uptime.

Collected Metrics

Cpu

Metric name	Description	Unit
cpu.utilization.percentage	CPU utilization.	%
core.cpu.utilization.percentage	CPU Core utilization.	%

Disk-usage

Metric name	Description	Unit
storage.partitions.count	Number of partitions storage	count
storage.space.usage.bytes	Usage Space Storage	B
storage.space.free.bytes	Free Space storage	B
storage.space.usage.percentage	Usage Space in percentage	%
storage.inodes.usage.percentage	Inode usage in percentage	%

It is possible to filter the results on the given disk path by using a REGEXP on the --disk-path parameter: [--disk-patch='^my-disk-path$']

Inodes

Metric name	Description	Unit
used	Inodes space usage on partitions.	%

Interfaces

Metric name	Description	Unit
status	Status of the interface
interface.traffic.in.bitspersecond	Incoming traffic going through the interface.	b/s
interface.traffic.out.bitspersecond	Outgoing traffic going through the interface.	b/s
interface.packets.in.error.percentage	Incoming errored packets going through the interface.	%
interface.packets.in.discard.percentage	Incoming discarded packets going through the interface.	%
interface.packets.out.error.percentage	Outgoing errored packets going through the interface.	%
interface.packets.out.discard.percentage	Outgoing discarded packets going through the interface.	%

It is possible to filter on the name of an interface using a REGEXP of the form [--interface='^ens160$' --name].

Hardware

• Per intances :

Metric name	Description	Unit
os10CardStatus	Status of the card
os10FanOperStatus	Status of the fan
os10FanTrayOperStatus	Status of the fantray
os10PowerSupplyOperStatus	Status of the power supply
resource.oper_status	Status of the resources
hardware.temperature.celsius	temperature of the different sensors	C

Load

Metric name	Description	Unit
load1	System load 1 minute sample
load5	System load 5 minutes sample
load15	System load 15 minutes sample

Memory

Metric name	Description	Unit
memory.usage.bytes	Memory usage	B
memory.free.bytes	Free memory	B
memory.usage.percentage	Memory usage in percentage	%
memory.buffer.bytes	Buffer memory	B
memory.cached.bytes	Memory cached	B
memory.shared.bytes	Shared Memory allocation	B

Swap

Metric name	Description	Unit
swap.usage.bytes	Swap usage	B
swap.free.bytes	Swap free	B
swap.usage.percentage	Swap usage	%

Uptime

Metric name	Description	Unit
system.uptime	Duration of system has been working and available.	s

Prerequisites

To control your Dell OS10 equipment, the SNMP v2 must be configured. For more information, please refer to the official user documentation : https://www.dell.com/support/manuals/fr/fr/frbsdt1/networking-z9100/os10-enterprise-user-guide-10_4_2-pub/configure-snmp?guid=guid-cf75b1b6-5c24-4237-af0c-b9ed1f491b75&lang=en-us

Setup

Online License

1. Install the Centreon Plugin on every Poller monitoring Dell OS10 resources:

yum install centreon-plugin-Network-Dell-Os10-Snmp.noarch

2. On the Centreon Web interface in Configuration > Monitoring Connectors Manager, install the Dell OS10 SNMP Monitoring Connector

Offline License

1. Install the Centreon Plugin on every Poller monitoring Dell OS10 resources:

yum install centreon-plugin-Network-Dell-Os10-Snmp.noarch

2. On the Centreon Central server, install the Centreon Monitoring Connector from the RPM:

yum install centreon-pack-network-dell-os10-snmp.noarch

3. On the Centreon Web interface in Configuration > Monitoring Connectors Manager, install the Dell OS10 SNMP Monitoring Connector

Host configuration

• Add a new Host and apply the Net-Dell-Os10-SNMP-custom Host Template
• Fill the SNMP Version and Community fields according to the device's configuration

When using SNMP v3, use the SNMPEXTRAOPTIONS Macro to add specific authentication parameters More information in the Troubleshooting SNMP section.

Mandatory	Name	Description
	SNMPEXTRAOPTIONS	Configure your own SNMPv3 credentials combo

FAQ

How to test the Plugin and what are the main options for ?

Once the Plugin installed, log into your Centreon Poller CLI using the centreon-engine user account and test the Plugin by running the following command:

/usr/lib/centreon/plugins/centreon_dell_os10_snmp.pl \
    --plugin=network::dell::os10::snmp::plugin \
    --mode=cpu \
    --hostname=10.30.2.114 \
    --snmp-version='2c' \
    --snmp-community='dell_os10_ro' \
    --warning-average='60' \
    --critical-average='75' \
    --verbose

Expected command output is shown below:

OK: CPU(s) average usage is 15.29 % - CPU '0' usage : 15.29 % 
| 'total_cpu_avg'=15.29%;0:60;0:75;0;100 'cpu'=15.29%;;;0;100

The command above monitors a Dell OS10 cpu usage (--plugin=network::dell::os10::snmp::plugin --mode=cpu) identified

by the IP address 10.30.2.114 (--hostname=10.30.2.114). As the Plugin is using the SNMP protocol to request the device, the related community and version are specified (--snmp-version='2c' --snmp-community='dell_os10_ro').

This command would trigger a WARNING alarm if the CPU average used to raise over 60% of the CPU capacity (--warning-average='60') and a CRITICAL alarm over 75% (--critical-average='75').

For each Plugin mode, all the options as well as all the available thresholds can be displayed by adding the --help parameter to the command:

/usr/lib/centreon/plugins/centreon_dell_os10_snmp.pl 
    --plugin=network::dell::os10::snmp::plugin \
    --mode=cpu \
    --help

UNKNOWN: SNMP GET Request : Timeout

If you get this message, you're probably facing one of these issues:

• The SNMP agent of the device isn't started or is misconfigured
• An external device is blocking the request (firewall, ...)

UNKNOWN: SNMP GET Request : Cant get a single value.

This error message often refers to the following issues:

• The Dell device doesn't support the MIB used by the plugin
• The targeted SNMP OID cannot be fetched because of insufficient privileges on the device. SNMP Agent must be capable of accessing to the enterprise branch Dell: 1.3.6.1.4.1.674.