Developed a comprehensive Drive Troubleshooting Guide for the truenas/documentation repository, focusing on streamlining the diagnosis of ZFS-related drive issues across both CORE and SCALE systems. The guide was authored in Markdown and integrates detailed flowcharts, step-by-step procedures, and clear explanations of SMART data interpretation, along with relevant command usage. This documentation initiative enhanced self-service troubleshooting for users, improved cross-system coverage, and contributed to documentation maintainability and searchability. By emphasizing technical writing and documentation best practices, the work aligned with organizational quality goals and helped reduce support cycle times, providing a centralized resource for preserving data integrity during drive failures.