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Ubuntu bundling zfs is a pretty good and convenient feature. As for the alternatives, mdadm + ext4/xfs is fine (i.e., does what it says on the tin), but all the
by bubblethink 5y ago
Ubuntu bundling zfs is a pretty good and convenient feature. As for the alternatives, mdadm + ext4/xfs is fine (i.e., does what it says on the tin), but all the other alternatives, especially the ones championed by RedHat - lvm, thin provisioning, stratis and the likes, are messy, fragile and not really used at scale by the general populace. With file systems, and linux in general, you want things that are battle tested by regular people.
- FireBeyond 5y agoWait, how do you consider lvm "not really used at scale by the general populace"? Throughout the last several years, be it Ubuntu, CentOS, RHEL, etc., most distros tend to default to an LVM-driven partitioning scheme, I believe. Disclaimer: I work at Red Hat, though nowhere near filesystems.
- bubblethink 5y agoI mean the fancier things like thin provisioning, snapshots and other features built on top of lvm as a means to provide zfs like functionality. Vanilla lvm is fine, which is what is used be everyone. I have been bitten twice by lvm related issues. Once because metadata storage in lvm thin provision got full (no idea why defaults are so low), and once because snapshots by snapper stopped working (i.e., they wouldn't rotate eventually causing a disk full situation) because an selinux policty update borked snapper.