Mar 21, · Asustor AST £ Asustor Data Master. Asustor is facing an obvious disadvantage; its rivals offer operating systems that have been . The Asustor Network Attached Storage (NAS) device is basically a Linux box with some custom software on it. It manages the disk drives and talks to the devices that need to access the drives but because it’s “just a computer” it is able to run a bunch of open source applications that range from web servers, to databases, to email servers. Jul 11, · Asustor's AST ($) is an excellent, albeit expensive, two-bay NAS device. It offers beefier hardware than most dual-bay NASes, as well .