Storage Disk

Common Problems 118088

Ubuntu 18.04 Swap Thrashing Causes Severe Latency

🟡 Medium   ⏱ 5–30 min  Last verified: 6 September 2020 📖 ~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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How to Use proctools on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use proctools on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use proctools on ibm aix 7.2 on IBM AIX […]

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Common Problems 121599

Debian 9 Disk Full in /var Causes Service Outages

🔴 Critical   ⏱ 5–30 min  Last verified: 4 September 2020 Affected versions: Debian 9 📖 ~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 & […]

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How to Install Node.js on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Install Node.js on FreeBSD 12

Introduction This guide explains how to Install Node.js on FreeBSD 12 on FreeBSD 12. FreeBSD uses the pkg(8) binary package manager, rc.conf(5) for service startup configuration, and pf(4) as its primary packet filter. There is no SELinux or AppArmor — instead, FreeBSD provides the MAC (Mandatory Access Control) framework and Capsicum for fine-grained privilege separation. […]

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How to Create and Manage File Systems on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Create and Manage File Systems on IBM AIX 7.2

Introduction IBM AIX 7.2 is the latest release of IBM’s enterprise-grade UNIX operating system, running on IBM Power Systems hardware. Known for its reliability, security, and performance in mission-critical environments, AIX 7.2 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to create and manage file systems on ibm aix 7.2 […]

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How to Configure Container Networking with Flannel on Debian 10 — step-by-step Debian 10 tutorial on Progressive Robot

How to Configure Container Networking with Flannel on Debian 10

Introduction Debian 10 Buster is built around the ethos of stability and free software. Setting up configure container networking with flannel on debian 10 on Buster leverages the same proven Debian packaging system that powers millions of servers worldwide, while benefiting from the latest upstream releases included in the Buster freeze. Follow each step carefully […]

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How to Install GitLab CE on RHEL 7 — step-by-step RHEL 7 tutorial on Progressive Robot

How to Install GitLab CE on RHEL 7

How to Install GitLab CE on RHEL 7 GitLab Community Edition is a complete DevOps platform that bundles source code management, issue tracking, CI/CD pipelines, container registry, and wiki functionality into a single self-hosted application. Installing GitLab CE on Red Hat Enterprise Linux 7 is straightforward using the official Omnibus package, which packages all dependencies […]

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Common Problems 121001

Debian 10 – initramfs BusyBox Drop on Boot – Root Filesystem Recovery

🔴 Critical   ⏱ 5–30 min  Last verified: 2 September 2020 Affected versions: Debian 10 📖 ~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 & […]

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Common Problems 117511

Ubuntu 20.04 LTS – persistent high iowait caused by background apt jobs – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 2 September 2020 Affected versions: Ubuntu 20.04 LTS 📖 ~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 […]

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