Dell EMC PowerFlex MP for vROps 8.x - Part1 - Install

Dell EMC has recently released a vROps management pack for PowerFlex. It is a monitoring and alerting solution that provides extensive visibility into PowerFlex systems using vROps. The management pack collects key metrics for PowerFlex storage, networking, compute, and server hardware and ingests into vROps. The solution is available to all PowerFlex rack and appliance customers free of cost. This brings additional value to the IT operations and life cycle management functionality delivered by PowerFlex Manager.

Now, let's start with installation of the management pack. The steps are same for vROps 8.0, 8.1, and 8.2.

Administration - Solutions - Repository - Add/ Upgrade

Browse and select the PAK file and click upload.

Click next.

Accept the EULA and click next.

Click finish.

The management pack is now installed and it will be listed in the repository.

Verify the contents of the management pack by selecting view content.

Verify the 13 dashboards.
Note: If any of the dashboards are missing, then try to reinstall the management pack.

In the next part, we will go through the adapter instance configurations. Hope it was useful. Cheers!

Related posts

Part2 - Configure
Part3 - Dashboards
Part4 - Resource kinds and relationships

References

Product guide: https://infohub.delltechnologies.com/section-assets/powerflexadapter-for-vrops-product-guide

PowerFlex website: https://www.delltechnologies.com/PowerFlex

PowerFlex white papers and blog: https://infohub.delltechnologies.com/t/powerflex-14/

VMware PowerCLI 101 - part8 - Working with vSAN

This article explains how to work with vSAN resources using PowerCLI. 

Note I am using the following versions:
PowerShell: 5.1.14393.3866
VMware PowerCLI: 12.1.0.17009493

Connect to vCenter:
Connect-VIServer <IP of vCenter server>

List all vSAN get cmdlets:
Get-Command Get-Vsan*

vSAN runtime info:
$c = Get-Cluster Cluster01
Get-VsanRuntimeInfo -Cluster $c

vSAN space usage:
Get-VsanSpaceUsage

vSAN cluster configuration:

Get-VsanClusterConfiguration

vSAN disk details:

Get-VsanDisk

View all properties of a disk:

(Get-VsanDisk)[31] | select *

View disk vendor, model, firmware revision, physical location, operational state:

(Get-VsanDisk)[31].ExtensionData

 vSAN disk group details:

Get-VsanDiskGroup

Get all properties of a disk group:

Use "extensiondata" property to get more details about cache and capacity tiers:

Cache tier details: 

(Get-VsanDiskGroup)[0].ExtensionData.Ssd

Capacity tier details:

(Get-VsanDiskGroup)[0].ExtensionData.NonSsd

Hope it was useful. Cheers!

Related posts

VMware PowerCLI 101 - Part1 - Installing the module and working with stand-alone ESXi host
VMware PowerCLI 101 - Part2 - Working with vCenter server
VMware PowerCLI 101 - Part3 - Basic VM operations
VMware PowerCLI 101 - Part4 - Snapshots
VMware PowerCLI 101 - Part5 - Real time storage IOPS and latency
VMware PowerCLI 101 - part6 - vSphere networking
VMware PowerCLI 101 - part7 - Working with vROps

Monitoring Tanzu Kubernetes cluster using Prometheus and Grafana

Updated: June 26, 2021

In this post, we will see how to deploy Prometheus and Grafana using Helm and Prometheus Operator to monitor Tanzu Kubernetes clusters. 

Following is my Tanzu K8s cluster setup:

Install Helm 3

curl https://raw.githubusercontent.com/kubernetes/helm/master/scripts/get-helm-3 > get_helm.sh

chmod 700 get_helm.sh

./get_helm.sh

Install Prometheus Operator using Helm

helm repo add prometheus-community https://prometheus-community.github.io/helm-charts

helm repo update

helm install pro-mon -n pro-mon prometheus-community/kube-prometheus-stack

Verify all

Port forward Grafana to 3000 to access the dashboards

Login to Grafana using a web browser at localhost:3000/login .

The default username is "admin" and the password is "prom-operator".

Go to Dashboards - Manage to view/ access the list of out-of-the-box K8s dashboards. The following are some of the sample dashboards.

Kubernetes | Compute Resources | Namespace (Pods)

Kubernetes | Networking | Namespace (Pods)

Kubernetes | API server

This is not limited to just Tanzu K8s clusters. You can also monitor OpenShift and Upstream K8s clusters following this method. Hope it was useful. Cheers!

References

https://github.com/prometheus-community/helm-charts/tree/main/charts/kube-prometheus-stack
[www.bogotobogo.com] Docker_Kubernetes_Prometheus_Deploy_using_Helm_and_Prometheus_Operator

Performance monitoring in Linux

CPU

cd /proc/

cat cpuinfo

less cpuinfo

less cpuinfo | grep processor

uptime

The load average is the CPU usage load average over 1 min, 5 min, and 15 min. The calculation for load avg value is given below.

For a single processor system:

Load avg value 1.0 = 100% CPU capacity usage

Load avg value 0.5 = 50% CPU capacity usage

This means for a 4 processor system:

Load avg value 4.0 = 100% CPU capacity usage

Load avg value 2.0 = 50% CPU capacity usage

Load avg value 1.0 = 25% CPU capacity usage

top

To get details of a process: ps aux | grep <process ID>

To get logs of a process: journalctl _PID=<process ID>

Memory

cat /proc/meminfo

less /proc/meminfo

free -h

Average memory usage view by samples with regular intervals: 

vmstat <interval> <number of samples>

Hope it was useful. Cheers!