Hi, Man pages for vnconfig state that one of the useful things for "vnd" devices (not svnd ones) is to make them be used for swap.
Given that vnconfig associates a vnd device with a regular file -- the above comments reduce to allowing one to use regular file as a swap space... only... why would one do all of this when swapctl/swapon accept regular file as arg anyway? In other words what are the advantages to using vnconfig for swapping as opposed to just calling swapctl/swapon directly on a regular file? Moreover, fstab also takes regular file for swap partitions just fine and subsequent (implicit) call to swapon also appears to work just fine... Does it have to do, may be, with earlier versions of swapctl not working with regular files... or some other historical differences in the early days? Also, if there is no distinct advantage of using vnconfig's vnd for swap (vs swapctl)... what other uses are there for explicit '/dev/vnd' (not 'svnd') devices? Kind regards Leon.
