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Backup window is five minutes on a busy database volume. How do LVM snapshots give you a safe image?

Copy-on-write freezes a point-in-time view while the database keeps writing. Fat snapshots overflow into invalid backups and thin pools exhaust into frozen volumes: size both deliberately.

Grounded in researched DevOps, SRE and platform engineering interview loops, written to a senior-engineer editorial bar, and never padded to hit a word count.

Copy-on-write freezes a point-in-time view while the database keeps writing. Fat snapshots overflow into invalid backups and thin pools exhaust into frozen volumes: size both deliberately.

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