Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
VLAN misconfigurations break connectivity in predictable ways. Start with the symptoms, then work through the layers: switch ports, trunk links, routing, spanning tree, and end devices. 1. Identify the Symptoms Devices in the same VLAN can’t talk to each other. Devices can’t reach other VLANs (inter-VLAN routing failure). Specific users or services report connectivity loss. […]
Configuring IT infrastructure for multi-tenant environments requires careful planning and execution to ensure isolation, performance, security, and scalability for multiple tenants. A multi-tenant architecture allows multiple customers (tenants) to share the same infrastructure resources while maintaining logical separation. Below is a step-by-step guide to designing and configuring IT infrastructure for multi-tenancy: 1. Understand Tenant Requirements […]
Managing IT infrastructure incidents effectively is critical for minimizing downtime, reducing business impact, and ensuring a smooth recovery process. Below are best practices for managing IT infrastructure incidents: 1. Establish an Incident Management Process Define incident types and severity levels. Categorize incidents (e.g., critical, high, medium, low) based on their potential impact on business operations. […]
Troubleshooting high-availability (HA) failures in IT infrastructure requires a systematic approach to identify and resolve the root causes, as HA setups are critical to minimizing downtime and ensuring business continuity. Below is a detailed troubleshooting guide tailored to your role as an IT manager overseeing datacenters, storage, backup, servers, virtualization, Windows, Linux, Kubernetes, AI, and […]
To calculate Power Usage Effectiveness (PUE) in a datacenter, you need to measure two key values: Total Facility Power and IT Equipment Power. PUE is a metric used to determine the energy efficiency of a datacenter. Here’s a step-by-step guide to calculate it: 1. Understand the Formula The formula for PUE is: PUE = {Total […]
