> in the past for ext4 over lvm

I used to look after storage arrays for VFX places.

everytime I saw lvm I inwardly sighed. The docs were terrible, almost as bad as MDADM. snapshots were for a long time unrecoverable. You'd then have to work out what pattern of LV you had, was it a suprise raid0? or a misaligned raid1?

zfs is a night and day compared to LVM/mdadm, two tools, rich help, the man pages are reasonably good, and once you understand zfs vs zpool, you're usually good to go.

zpool-replace(8)

https://openzfs.github.io/openzfs-docs/man/master/8/zpool-re...

ZFS got this right. MDADM on ext4 somehow did not.

EDIT: ext4 on MDADM.

How ZFS gets this right: zfs(8) on zpool(8). So, basically, ext4 and mdadm can talk to each other.

man zfs, man zpool, cron, your mta of choice (I like dma) :)

schedule a zpool scrub every month, send an email if it finds errors. zpool status will show the errored drive. zpool replace will initiate the drive replacement.