Imagine that you add a drive to a Synology NAS and start migrating from RAID 1 to RAID 5 to increase storage capacity. But during the rebuild, power is suddenly lost and the NAS shuts down. After power is restored, it turns out that one of the original drives is no longer detected, and there is no access to the files. What should you do if there is no current backup of the required data? Can files be recovered from the two surviving drives when the migration to the new RAID level was never completed?
(more…)- 20 min. reading
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