Migrating a ZFS pool from RAIDZ1 to RAIDZ2
Read OriginalThis article details a step-by-step process for migrating a ZFS pool from a 4-disk RAIDZ1 configuration to a more resilient 7-disk RAIDZ2 setup. The author explains how to perform this upgrade using only three additional disks and a temporary sparse file hack, avoiding the need for external backup storage. The guide includes an initial method and an updated, safer strategy suggested by readers to better mitigate disk failure risks during the migration.
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