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RAID5 / RAIDZ - is it possible to enlarge without losing data?
Fresh5 days ago
Mar 15, 20262931 viewsConfidence Score0%
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Problem
If I have a RAID5 with 4x1TB drives, and then in, say, a year I decide to upgrade to 4x2TB, can I swap out one drive at a time, then let the parity rebuild, even if it's mixed-size drives? Obviously I don't want to have to backup all 4TB to another RAID in order to expand. Is there a difference in …
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Fix for: RAID5 / RAIDZ - is it possible to enlarge without losing data?
Low Risk
This is possible with RAID-Z, as described by the ZFS Administration Guide: When a replacement device that is greater in size than the device it is replacing is added to a pool, is not automatically expanded to its full size. The pool property value…
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