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OpenZFS Introduces New RAIDZ Expansion Feature

Phoronix reports that OpenZFS has recently added a new feature called RAIDZ expansion. This feature allows for the incremental addition of disks to a RAID-Z group, enabling users to expand the capacity of their RAID arrays one disk at a time. This feature is particularly useful for small pools.

The development of RAIDZ expansion has been in progress for several years, with the FreeBSD Foundation sponsoring the initial work in 2017. iXsystems and vStack have also provided sponsorship to complete this feature.

Source: Phoronix.