Wojciech Puchar wrote:

2) ZFS RAID-z turns your X drives to single drive performance both on read and write. every normal RAID-5 implementation will give you random read speed of X-1 times single drive speed, while slow random write speeds (but still at least half of single drive). but this is advertised as a feature

Is this because of checksum verification (the need to read all components) or something else? Any documentation/references?

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