🔗 Linux server health checks: 10 metrics every sysadmin should monitor

Are sysadmins missing crucial warnings from their Linux servers? Most focus on surface-level metrics but overlook deeper signals that can preemptively reveal potential failures. This article outlines 10 essential metrics every sysadmin should monitor, focusing on overlooked indicators like iowait, active swap paging, and inode and disk I/O insights. It emphasizes the importance of not only measuring usage percentages but understanding the underlying trends that can signal broader issues. Key commands like mpstat, iostat, and vmstat are highlighted to help identify when action is necessary. By focusing on these metrics, sysadmins can effectively mitigate risks and prevent outages before they occur. Establishing baselines instead of relying on static thresholds is encouraged to enhance monitoring efficiency as infrastructure scales. This guide serves as a vital resource for maintaining optimal Linux server performance.