Apple has incorporated the Xsan server tools along with StorNext 7 features into the next Big Sur beta that is available today.
Xsan started off as Apple's branded version of StorNext, a SAN or storage area network for macOS. The Xserves and Xserve RAIDs have long gone, but there are still many installations that use Xsan with fibre channel, especially when it comes to sharing out large amounts of data between workstations and edit suites.
Xsan used to be an add-on purchase that enabled shared storage per client until 2011 when it became integrated with the macOS (Lion). It has been part of every Mac operating system since, including Big Sur and supporting M1 silicon Macs.
The availability of Beta 2 of Big Sur 11.3 brings two changes for Xsan/StorNext users.
First is that the new beta brings the functionality of StorNext 7 from Quantum. This allows a smooth upgrade and more features for the smaller shop.
Second is the integration of the administrative tools into the macOS that can be accessed via the command line. This means you don't have to run an instance of macOS Server, it will also allow control using scripting for example.
Now, we don't suggest any IT admin installs the beta today on any system that is mission critical, especially when it comes to high-speed data networking! However, you can download the macOS Big Sur 11.3 Beta 2 from Apple's Developer site. Once logged in go Discover/macOS.