The article isn't talking about the size of raw disk blocks, better called the sector size. It's talking about ZFS blocks, which are variable in size, defaultin

The article isn't talking about the size of raw disk blocks, better called the sector size. It's talking about ZFS blocks, which are variable in size, defaulting to 128 kB: https://en.wikipedia.org/wiki/ZFS#Variable_block_sizes https://en.wikipedia.org/wiki/ZFS#Variable_block_sizes ZFS aside, the 512 byte sector isn't even a hard limit at the storage medium level. Disks with 528 byte sectors — and other odd sizes — have been available in the enterprise world for a long time now: https://en.wikipedia.org/wiki/Hard_disk_drive#Market_segments https://en.wikipedia.org/wiki/Hard_disk_drive#Market_segment... HDDs and SSDs with 4 kB sectors dominate the consumer market now: https://en.wikipedia.org/wiki/Advanced_Format https://en.wikipedia.org/wiki/Advanced_Format