Disk Space and inode Management: A Complete Troubleshooting Guide from df to lsof
Overview 3 AM, you get paged — the production database can’t write, Nginx won’t start, SSH is sluggish. You log in and df -h shows the root partition at 100%. Every ops engineer has been there. Disk full is one of the most frequent production incidents — based on real-world operations statistics, disk-related alerts account for roughly 15%-20% of all alerts. But the 100% you see in df -h may not be the full picture:...