View HDD SMART Info on Synology DSM 7.2.1 Tutorial

## 1. Introduction This video explains how to use command line to check hard drive SMART information on Synology DSM 7.2.1 system to assess drive health and safety. This is part of the Synology beginner tutorial series. Disclaimer: Released with DP_IT videos, free to use. Any commercial activities such as resale are strictly prohibited. If someone sold this to you, please request a refund. Website: https://dpit.lib00.com ## 2. Commands Used in the Video > //1. Check hard drive ID fdisk -l > //2. Check HDD SMART information smartctl -a -d sat /dev/sata1 > //3. Check SSD SMART information nvme smart-log /dev/nvme0 > //4. Command for scheduled task execution (echo '>>>'; date; smartctl -a -d sat /dev/sata1; smartctl -a -d sat /dev/sata2; nvme smart-log /dev/nvme0) >> /volume3/sys_need_keep/log/SMART.log 2>&1 > //5. Command for scheduled task execution - Breakdown ( echo '>>>'; date; smartctl -a -d sat /dev/sata1; smartctl -a -d sat /dev/sata2; nvme smart-log /dev/nvme0 )>> /volume3/sys_need_keep/log/SMART.log 2>&1

# View HDD SMART Info on Synology DSM 7.2.1 Tutorial ## 📋 Video Overview This comprehensive tutorial demonstrates how to monitor hard drive health on Synology NAS (DSM 7.2.1) using both command-line methods and scheduled tasks to check SMART (Self-Monitoring, Analysis and Reporting Technology) information, ensuring data integrity and early problem detection. --- ## 🎯 Core Content ### **Why SMART Information Matters** For Synology NAS users, hard drives are the foundation of data storage. SMART monitoring provides the most direct way to assess drive health, enabling proactive maintenance and preventing catastrophic data loss. Regular SMART checks help identify failing drives before complete failure occurs. ### **Method 1: Command-Line SMART Information Retrieval** **Prerequisites:** 1. Access official documentation at dpit.lib00.com and search for "smart" 2. SSH access to your Synology NAS with root privileges **Step-by-Step Process:** **Step 1: Identify All Drive IDs** ```bash # Scan all drive devices in the system ls -la /dev/ ``` Locate drives by searching for keywords: - **Mechanical HDDs**: Search for `/dev/sata` to find SATA1, SATA2, etc. - **Solid State Drives**: Search for `/dev/nvme` to find nvme0n1, etc. **Step 2: Read SMART Data** For mechanical hard drives (HDD): ```bash smartctl -a /dev/sata1 smartctl -a /dev/sata2 ``` For solid-state drives (SSD/NVMe): ```bash smartctl -a /dev/nvme0 # or smartctl -a /dev/nvme0n1 ``` > 💡 **Note**: Both nvme0 and nvme0n1 produce identical output **Step 3: Critical Parameter Interpretation** Focus on these key SMART attributes: - **ID 5**: Reallocated Sector Count - **ID 196-199**: Especially 197 (Current Pending Sector) and 198 (Offline Uncorrectable) - **Health Benchmark**: Values of 0 for attributes 197 and 198 indicate good drive health ### **Method 2: Automated Monitoring with Scheduled Tasks** For users less comfortable with command-line interfaces, Synology's built-in Task Scheduler provides an automated solution. **Configuration Steps:** **1. Create Log Storage Location** - Create a dedicated folder in your Synology filesystem (e.g., `/volume1/sys_need_keep/log/`) - Set log filename as `smart.log` - Copy the complete path for later use **2. Build Monitoring Command** ```bash (echo "==="; date; smartctl -a /dev/sata1; smartctl -a /dev/sata2; smartctl -a /dev/nvme0) >> /volume1/sys_need_keep/log/smart.log 2>&1 ``` **Command Structure Breakdown:** - Parentheses group commands to output separator, timestamp, and SMART data from all drives - `>>` appends output to log file - `2>&1` captures both standard output and error messages **3. Create Scheduled Task** - Navigate to **Control Panel → Task Scheduler → Create → Scheduled Task → User-defined script** - Task name: smart_check - User: root - Schedule: Recommended quarterly execution at 2:00 AM - User-defined script: Paste the monitoring command above **4. Email Notification Setup (Optional)** - Enable "Send run details by email" - Enter recipient email address - **Important**: Remove redirection portion (`>> ... 2>&1`) from command to allow direct email output - Requires pre-configured Synology email sending functionality --- ## 🤖 AI-Assisted Analysis For users unfamiliar with SMART parameters, complete SMART output can be submitted to AI tools (ChatGPT, Claude, etc.) for intelligent analysis. AI can provide: - Comprehensive drive capacity and health assessment - Detailed interpretation of critical metrics - Usage duration and power-on cycle statistics - Operating temperature environment analysis - Potential risk warnings and recommendations --- ## ⚠️ Important Reminders 1. **Regular Check Frequency**: Minimum quarterly SMART information review recommended 2. **Backup Priority**: Regardless of SMART status, regular backup habits are fundamental to data security 3. **Early Warning Response**: Address SMART anomalies immediately—consider drive replacement or data migration 4. **Temperature Monitoring**: Track drive operating temperatures and maintain proper cooling --- ## 🔗 Related Resources - SSH Root User Login Tutorial - Synology Email Sending Configuration Guide - Complete Synology NAS Data Backup Solutions - Web-based Log Viewer Plugin Installation --- ## 📊 Use Cases - Personal Synology NAS routine maintenance - Small business data center drive health monitoring - Multi-bay NAS bulk drive inspection - Pre-replacement drive health assessment --- ## 🏷️ SEO Keywords Synology NAS, SMART information, hard drive health check, DSM 7.2.1, command-line tutorial, SSH access, scheduled tasks, data security, drive monitoring, NAS maintenance, disk health assessment, storage management