2.5 Admins 2.5 Admins 256: Why ZFS
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Jul 17, 2025 Celebrate a milestone by diving deep into ZFS! Discover the incredible reliability and ease of management ZFS offers, enhanced by its error correction capabilities. Learn how ZFS outshines traditional RAID systems, providing superior data safety. The discussion highlights efficient ZFS snapshots for quick data retention and recovery, making backups a breeze. Explore innovative strategies for data transfer that outperform standard methods. Plus, uncover valuable community resources for all things ZFS!
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Jeff Bonwick's ZFS Repair Story
- Jeff Bonwick shared a story where a failing mirrored drive had tens of thousands of errors but no data corruption.
- ZFS silently repaired corrupted blocks by checksumming and reading from the healthy drive.
ZFS vs Traditional RAID Reliability
- Traditional RAID mirrors cannot detect or repair silent data corruption.
- ZFS avoids silent corruption by validating data against checksums and repairing errors automatically.
ZFS Saved Old Photos From Bitrot
- Old photos copied over consumer drives suffered partial corruption unnoticed in traditional systems.
- With ZFS regular scrubs, corrupt data is detected early preventing unseen damage.
