Performance

Common Problems 117088

Ubuntu 22.04 LTS – filesystem remounted read-only after I/O errors – Fix & Prevention

🔴 Critical   ⏱ 5–30 min  Last verified: 17 August 2022 Affected versions: Ubuntu 22.04 LTS (Jammy) 📖 ~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 […]

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How to Use AIX Volume Groups and Logical Volumes on IBM AIX 7.1 — step-by-step IBM AIX 7.1 tutorial on Progressive Robot

How to Use AIX Volume Groups and Logical Volumes on IBM AIX 7.1

Introduction IBM AIX 7.1 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 7.1 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to use aix volume groups and logical volumes on ibm […]

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How to Set Up Loki and Promtail on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up Loki and Promtail on FreeBSD 12

Introduction FreeBSD 12 is a UNIX-derived operating system renowned for its network stack performance, ZFS integration, and Jail isolation primitives. Setting up set up loki and promtail on freebsd 12 on FreeBSD 12 follows the rc.conf/service(8) paradigm rather than systemd, which means enabling a service and configuring its startup options are done differently from any […]

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How to Set Up ClamAV Antivirus on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Set Up ClamAV Antivirus on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to set up clamav antivirus on IBM AIX 7.3 with […]

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How to Install Xdebug 3 for PHP on RHEL 9 — step-by-step RHEL 9 tutorial on Progressive Robot

How to Install Xdebug 3 for PHP on RHEL 9

Xdebug is the standard PHP debugging and profiling extension. It transforms PHP development from var_dump()-driven debugging into a full interactive debugging experience with step-through execution, breakpoints, variable inspection, call stack navigation, and code coverage analysis for unit tests. Xdebug 3 introduced a simplified configuration model that replaces the complex Xdebug 2 settings with a single […]

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How to Configure Micro-Partitioning on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Configure Micro-Partitioning on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to configure micro-partitioning on IBM AIX 7.3 with practical examples […]

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Common Problems 117485

High CPU from tracker-miner-fs

🟢 Low   ⏱ 5–30 min  Last verified: 15 August 2022 Affected versions: 20.04 📖 ~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 […]

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How to Install SAP NetWeaver on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Install SAP NetWeaver on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to install sap netweaver on IBM AIX 7.3 with practical […]

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Common Problems 120591

Debian 11 – mdadm RAID Degraded and Rebuild Stalled – Safe Recovery

🟠 High   ⏱ 5–30 min  Last verified: 13 August 2022 Affected versions: Debian 11 📖 ~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 Restore from mksysb Backup on IBM AIX 7.3 — step-by-step IBM AIX 7.3 tutorial on Progressive Robot

How to Restore from mksysb Backup on IBM AIX 7.3

Introduction IBM AIX 7.3 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 7.3 introduces enhanced virtualization, security hardening, and cloud integration features. This guide covers how to restore from mksysb backup on IBM AIX 7.3 with […]

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