From using ZFS since ~2008, I have only ever lost one ZFS pool, and it was due to lack of scrubs (the array was created on a FreeBSD version before ZFS was integral to the installer, and despite upgrades the nightly scripts just never got overwritten, so the array was never scrubbed).
I can't say I've never lost an ext4 partition either, but I've never lost one under normal use without some sort of weird hardware issue causing data corruption.
By definition, without a redundant copy of the data the scrub can't fix anything.
Creating a pool with no redundancy is not recommended...
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From using ZFS since ~2008, I have only ever lost one ZFS pool, and it was due to lack of scrubs (the array was created on a FreeBSD version before ZFS was integral to the installer, and despite upgrades the nightly scripts just never got overwritten, so the array was never scrubbed).
I can't say I've never lost an ext4 partition either, but I've never lost one under normal use without some sort of weird hardware issue causing data corruption.
By definition, without a redundant copy of the data the scrub can't fix anything.
https://docs.oracle.com/cd/E26502_01/html/E36219/storage-4.h...