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Don’t trust RAID 5 with your 20TB drives; use RAIDZ-2 instead

When it comes to building a redundant array of independent disks (RAID), there's always the potential to choose the wrong RAID type. This shouldn't cause any issues with storing data, but it could ...
Ars Technica

Using different sized disks in a ZFS raidz?

I currently am running a 4x750gb raidz, and am running out of room. I was considering adding 1TB or 1.5TB disks to the array. If I add x >= 3 drives that are each larger than 750gb to the array, would ...
Ars Technica

ZFS fans, rejoice—RAIDz expansion will be a thing very soon

OpenZFS founding developer Matthew Ahrens opened a PR for one of the most sought-after features in ZFS history—RAIDz expansion—last week. The new feature allows a ZFS user to expand the size of a ...