How to Configure Windows Server 2019 for High Availability High Availability (HA) in Windows Server 2019 is achieved through multiple technologies that eliminate single points of failure. The primary HA technologies include Failover Clustering for automatic failover of roles and virtual machines, Network Load Balancing for distributing workloads across multiple servers, Always On Availability Groups […]
🟡 Medium ⏱ 5–30 min Last verified: 25 November 2019 Affected versions: Ubuntu 14.04 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 […]
VictoriaMetrics is a fast, cost-efficient time-series database designed as a drop-in replacement for Prometheus storage. It supports the full Prometheus remote_write protocol, exposes its own MetricsQL query language (fully compatible with PromQL), and operates as a single binary with no external dependencies. On RHEL 8, the installation takes under five minutes and the memory footprint […]
Introduction How to Configure RAID with mdadm on Debian 9 is a fundamental operation for any administrator maintaining a Debian 9 Stretch server. Debian 9 Stretch ships with the Linux 6.12 kernel, updated toolchains, and a fully refreshed package archive — meaning version numbers, configuration file paths, and some dependency chains differ from Debian 9. […]
How to Install Zabbix Agent on Windows Server 2016 Zabbix is a powerful open-source monitoring platform capable of collecting metrics from network devices, Linux and Windows servers, cloud instances, and applications. The Zabbix Agent runs on monitored hosts and reports data back to the Zabbix Server or Proxy. On Windows Server 2016, the Zabbix Agent […]
Introduction to Hyper-V Replication on Windows Server 2019 Hyper-V Replica is an asynchronous virtual machine replication feature built into Windows Server 2019 that continuously replicates VMs from a primary Hyper-V server to one or more replica servers. It provides a disaster recovery capability without requiring shared storage — each site has its own independent storage. […]
How to Configure Live Migration in Hyper-V on Windows Server 2012 R2 Live Migration allows you to move a running virtual machine from one Hyper-V host to another with zero downtime — the VM continues to run and serve clients throughout the entire migration process. This capability is essential for hardware maintenance (patching, firmware updates, […]
How to Set Up Active Directory Domain Services on Windows Server 2012 R2 Active Directory Domain Services (AD DS) is the cornerstone identity and access management platform in Windows Server environments. It provides centralised authentication, authorisation, Group Policy application, and a directory of all users, computers, and resources in an organisation. Windows Server 2012 R2 […]
How to Set Up SQL Server Monitoring on Windows Server 2012 R2 Monitoring SQL Server on Windows Server 2012 R2 requires a multi-layered approach that covers both OS-level performance (CPU, memory, disk I/O) and SQL Server-specific metrics (wait statistics, query performance, blocking, index fragmentation, database file sizes, and backup status). This guide covers setting up […]
🟡 Medium ⏱ 5–30 min Last verified: 14 November 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 […]
