Performance

How to Configure Windows Defender on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Configure Windows Defender on Windows Server 2012 R2 (2012-R2-2)

How to Configure Windows Defender on Windows Server 2012 R2 Windows Defender on Windows Server 2012 R2 provides built-in antimalware protection that, when properly configured, delivers a solid first layer of defense without the cost of a third-party solution. Unlike the client-side Windows Defender in Windows 8.1, the server edition ships as a feature that […]

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How to Use AIX Live Application Mobility on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Use AIX Live Application Mobility 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 aix live application mobility on ibm aix 7.2 […]

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How to Set Up Storage Spaces on Windows Server 2012 R2 — step-by-step Windows Server 2012 R2 tutorial on Progressive Robot

How to Set Up Storage Spaces on Windows Server 2012 R2

How to Set Up Storage Spaces on Windows Server 2012 R2 Storage Spaces is a software-defined storage technology built into Windows Server 2012 R2 that allows you to pool physical disks of varying sizes and types (SAS, SATA, SSD) into virtual storage pools, then carve those pools into virtual disks with resiliency options such as […]

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How to Configure Hyper-V QoS on Windows Server 2016 — step-by-step Windows Server 2016 tutorial on Progressive Robot

How to Configure Hyper-V QoS on Windows Server 2016

How to Set Up Windows Server 2016 Hyper-V Quality of Service Hyper-V Quality of Service (QoS) in Windows Server 2016 lets administrators control and prioritise the network bandwidth and storage I/O that each virtual machine or virtual network adapter can consume. Without QoS controls, a single VM running a backup job or large file transfer […]

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How to Set Up a Private Docker Registry on FreeBSD 12 — step-by-step FreeBSD 12 tutorial on Progressive Robot

How to Set Up a Private Docker Registry 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 a private docker registry 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 […]

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Common Problems 113532

Windows Server 2012 R2 Storage Replica Backlog Growth During Peak Write Periods – Fix & Prevention

🟠 High   ⏱ 5–30 min  Last verified: 1 October 2019 Affected versions: Windows Server 2012 R2 📖 ~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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Common Problems 117908

Ubuntu 18.04 LTS – unattended-upgrades causes sustained CPU usage – Fix & Prevention

🟡 Medium   ⏱ 5–30 min  Last verified: 30 September 2019 Affected versions: Ubuntu 18.04 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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How to Set Up IBM Spectrum Scale (GPFS) on IBM AIX 7.2 — step-by-step IBM AIX 7.2 tutorial on Progressive Robot

How to Set Up IBM Spectrum Scale (GPFS) 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 set up ibm spectrum scale (gpfs) on ibm aix […]

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Common Problems 115552

Apache returns 503 because php-fpm is down

🟡 Medium   ⏱ 5–30 min  Last verified: 25 September 2019 📖 ~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 119084

Ubuntu 14.04 LTS High iowait Slows Entire System

🟡 Medium   ⏱ 5–30 min  Last verified: 23 September 2019 📖 ~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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