Node Auto-Backup System — 10 Hours 21 Rounds 100% Success Rate

techsfree-web-01: Node Auto-Backup System — 10 Hours, 21 Rounds, 100% Success Rate An Accidental Stress Test On February 21, 2026, the backup system got an unexpected stress test. Starting at 19:31, the differential backup script ran every 30 minutes. Normally, if no config changes occurred, the system should skip silently. But this day's results: 10 consecutive hours, 21 backup rounds, 3 remote nodes showing config changes every single time . Time Window Rounds Changed Nodes 19:31 - 05:31 21 rounds 02/03/04 (continuously active) Full period 100% success 01 (local) no changes, smartly skipped Performance Analysis Differential detection accuracy : Local node 01 was correctly identified as "no changes" across all rounds. MD5 hash comparison logic worked flawlessly. Execution efficiency : Each round consistently took ~3 min 15 sec, with no performance degradation from continuous execution. Storage management : Old backups auto-cleaned, maintaining a maximum of 20 versions. Storage usage s