> ZFS/btrfs has nothing to offer someone working on an S3-like service, or a globalized database, either. Why would that be the case? Let's say I want to setup

> ZFS/btrfs has nothing to offer someone working on an S3-like service, or a globalized database, either. Why would that be the case? Let's say I want to setup a vitess cluster (planetscale = globalized database). I can easily delegate the compression logic to zfs, which works way better than innodb table compression or transparent page compression. I can rely on zfs atomic write to safely disable innodb doublewrite, which has been the number one bottleneck to scale writes until it was enhanced recently.