Capacity Planning

How to Configure Azure Monitor for Windows Server 2019 — step-by-step Windows Server 2019 tutorial on Progressive Robot

How to Configure Azure Monitor for Windows Server 2019

Introduction to Azure Monitor for Windows Server 2019 Azure Monitor is Microsoft’s comprehensive monitoring service that collects, analyzes, and acts on telemetry from cloud and on-premises environments. When configured for Windows Server 2019, Azure Monitor provides real-time metrics, log analytics, alerting, dashboards, and automated responses to operational conditions. Azure Monitor VM Insights provides pre-built workbooks […]

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Common Problems 114584

Extend LVM Root Volume on RHEL 9

🟡 Medium   ⏱ 5–30 min  Last verified: 8 October 2022 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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Common Problems 114494

journalctl Disk Usage Grows Too Large

🟡 Medium   ⏱ 5–30 min  Last verified: 8 October 2022 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention & Hardening Related Errors & Cross-Refs References & Further […]

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Common Problems 116999

Ubuntu 22.04 LTS – root filesystem is 100% and services become unstable

🔴 Critical   ⏱ 5–30 min  Last verified: 7 October 2022 Affected versions: Ubuntu 22.04 LTS Ubuntu 22.04 Ubuntu 22.04.4 📖 ~1 min read Table of contents Symptom & Impact Environment & Reproduction Root Cause Analysis Quick Triage Step-by-Step Diagnosis Solution – Primary Fix Solution – Alternative Approaches Verification & Acceptance Criteria Rollback Plan Prevention […]

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How to Install Python 3 and pip on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install Python 3 and pip on RHEL 7

How to Install Python 3 and pip on RHEL 7 RHEL 7 ships with Python 2.7 as the system default, and that version is deeply embedded in system utilities such as yum itself. Replacing or removing the system Python will break critical OS tooling, so the correct approach on RHEL 7 is to install Python […]

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How to Set Up Azure Site Recovery for Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Set Up Azure Site Recovery for Windows Server 2016

How to Configure Azure Site Recovery for Windows Server 2016 Azure Site Recovery (ASR) is a Microsoft Azure service that provides disaster recovery capabilities by continuously replicating on-premises workloads to Azure or to a secondary on-premises site. When a disaster occurs, ASR enables rapid failover to the replicated environment, bringing your workloads back online with […]

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How to Monitor Kubernetes with Prometheus and Grafana on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Monitor Kubernetes with Prometheus and Grafana on RHEL 8

Prometheus and Grafana are the de facto standard observability stack for Kubernetes, providing metrics collection, long-term storage, alerting, and rich dashboarding in a single integrated solution. The kube-prometheus-stack Helm chart bundles Prometheus, Grafana, Alertmanager, and a comprehensive set of pre-built Kubernetes dashboards and alert rules into a single deployment that takes minutes to install. This […]

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How to Configure IPv6 Networking on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Configure IPv6 Networking on RHEL 9

IPv6 is the successor to IPv4, offering a vastly larger address space and improved routing efficiency, and is increasingly required for modern infrastructure and public internet connectivity. On RHEL 9, NetworkManager is the primary tool for managing network configuration, and it fully supports both static IPv6 addressing and automatic assignment via SLAAC and DHCPv6. This […]

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How to Configure Storage Tiering on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Storage Tiering on Windows Server 2016

How to Configure Storage Tiering with Storage Spaces on Windows Server 2016 Storage Tiering is a feature of Storage Spaces in Windows Server 2016 that automatically moves frequently accessed data to faster storage media (such as SSDs) and less frequently accessed data to slower, higher-capacity media (such as HDDs). This provides a cost-effective approach to […]

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How to Monitor MySQL with Prometheus mysqld_exporter on RHEL 8 — step-by-step RHEL 8 tutorial on Progressive Robot

How to Monitor MySQL with Prometheus mysqld_exporter on RHEL 8

Prometheus is a popular open-source monitoring system that collects metrics by scraping HTTP endpoints called exporters. The mysqld_exporter binary exposes MySQL server metrics in Prometheus format so you can build dashboards, set alerts, and track database health over time. In this tutorial you will create a dedicated MySQL monitoring user with least-privilege grants, deploy mysqld_exporter […]

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