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Start a ZFS RAIDZ zpool with two discs then add a third?
Fresh5 days ago
Mar 15, 202621551 viewsConfidence Score0%
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Problem
Let's say I have two 2TB HDDs and I want to start my first ZFS zpool. Is it possible to create a RAIDZ with just those two discs, giving me 2TB of usable storage (if I understand it right) and then later add another 2TB HDD bringing the total to 4TB of usable storage. Am I correct or does there nee…
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Fix for: Start a ZFS RAIDZ zpool with two discs then add a third?
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A method some people use, but that is not recommended: Create a pool with 2 drives and a sparse file (of the right, virtual size to match the other drives), and then immediately offline the sparse file. This will create a degraded RAID-Z1 pool with …
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