> What is the purpose of ZFS in 2021 if we have hardware RAID Hardware RAID is actually older then ZFS style software RAID. ZFS was specifically designed fix t

> What is the purpose of ZFS in 2021 if we have hardware RAID Hardware RAID is actually older then ZFS style software RAID. ZFS was specifically designed fix the issues with hardware RAID. The problem with Hardware RAID is that is has no ideas what going on on top of it, and even worse, its a mostly a bunch of closed-source fireware from a vendor. And they cost money. You can find lots of terrible story about those. ZFS is open-source and battle tested. > linux software RAID Not sure what you are referring too. > BTRFS does RAID too. BTRFS is basically copied many of the features done in ZFS. BTRFS has a history of being far less stable. ZFS is far more battle tested. They say its stable now, but they had said that many times. It eat my data twice so I have not followed the project anymore. A file system in my opinion gets exactly 1 chance with me. They each have some features the other doesn't but broadly speaking they are similar technology. The new bcacheFS is also coming up and adding some interesting features. > Why would people choose ZFS in 2021 if both Oracle and Open Source users have 2 competing ZFS? Not sure what that has do with anything. Oracle is an evil company, they tried take all these great open source technologies away from people and the community thought against it. Most of the ZFS team left after the merger. The Open-Source version is arguable better, and has far more of the original designers working on it. The two code bases have diverged a lot since then. At the end of the day ZFS is incredibly battle tested, works incredibly well at what it does. And had a incredible reputation of stability basically since it came out. They question in my opinion is why not ZFS, then why ZFS.