Le 27/12/2017 à 01:05, Hendrik Boom a écrit :
As I understand it, there are a few new file systems somewhat available on Linux -- ZFS, XFS, and Btrfs.
I switched from ext2 to Reiserfs many years ago, when Reiser was the first and only journalled filesystem. After that switch I have never lost a file, while, before, I had lost full filesystems. I stick to the old reiserfs; I don't trust the new one.
I'm reluctant to use ext3/ext4 because I don't understand why they still have this strange lost+found directory, which signs a kind of weakness.
I have tried btrfs; it still runs on a few servers I have installed. I'm reluctant to continue with it because it is too tied to RedHat/Systemd and does too many things for my taste, RAID, compression, etc... I prefer to use mdadm for RAID - different tools for different tasks. I have stopped LVM long ago because I found it added a layer for almost no benefit.
From reading this thread, I learned that ZFS has severe hardware requirements; therefore I'm also reluctant. Don't really know about XFS.
I partially agree whith what has been said about RAID: it is essentially meant to ensure high availability. It doesn't provides all we expect from backup: it does not protect against human errors or malevolent actions; yet it is a protection against the consequences of disk failure.
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