Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Articles about storage, backup, virtualization, technology, innovation, programming, leadership, management,... etc
Immutable backups protect your data from ransomware by making it impossible to alter, delete, or encrypt after writing. Here’s how to implement them effectively: 1. Understand Backup Immutability Immutable backups cannot be modified or deleted during a set retention period, no matter the permissions. This relies on Write Once Read Many (WORM) storage or immutable […]
Backing up and restoring Kubernetes clusters is necessary to maintain the availability and integrity of your applications and data. This article covers the key components to back up, tools you can use, and the steps to perform backup and restore operations. Key Components to Back Up etcd Database — Stores the cluster state, including secrets, […]
Troubleshooting application compatibility issues in a mixed infrastructure — datacenters, storage, backup, servers, virtualization, Kubernetes, GPU workloads — takes a methodical process. Here’s how to work through it. Step 1: Identify the Scope Gather the application’s documented requirements: supported OS versions, libraries, dependencies, hardware minimums. Determine whether the problem is isolated to one component (OS, […]
Troubleshooting IT infrastructure integration issues means dealing with servers, storage, virtualization platforms, networks, and applications all at once. Here’s a structured approach: 1. Identify the Scope and Impact Gather detailed information about the issue from users, logs, or monitoring tools. Is the problem affecting a specific component (e.g., storage, server, network) or the integration between […]
Troubleshooting firewall rule conflicts in IT infrastructure requires a systematic approach to identify and resolve the issue effectively. Here’s a step-by-step guide: 1. Understand the Environment Identify where the firewall sits (datacenter edge, internal zones, Kubernetes cluster, etc.). List the systems, servers, and applications affected by the firewall rules. Confirm who manages the rules (network […]
Kubernetes secrets hold your most sensitive data — passwords, API keys, certificates. Here’s how to handle them properly. 1. Use Kubernetes Secrets objects Store sensitive information in Secret objects, not in ConfigMaps, environment variables, or container images. Secrets are base64-encoded, not encrypted. Treat them as plaintext until you enable encryption at rest. 2. Enable encryption […]
