In about any corporation you look, crucial data will be in a Windows server (no ZFS available, sorry), and backed up on intervals that are some integer multiple of 24 hours.
Or, better, the above is the best case scenario that IT dreams of achieving some day. In practice, a huge share of the crucial data sits on people's machine, with no backups, and go on vacation every year.
Most corporate windows file servers (since 2003) use shadow copy, which saves previous versions of files every couple of hours. Any decent IT dept will use folder redirection, which redirects deskop, my documents to the local file server.
Or, better, the above is the best case scenario that IT dreams of achieving some day. In practice, a huge share of the crucial data sits on people's machine, with no backups, and go on vacation every year.