Very simple little script. checks and shows the channel your total, used, and free diskspace.

Someone might like it.

UPDATE:

Added a little bonus oneliner, just copy/paste it into your inputbox ;_)

alias diskinfo {
   var %x 1
   while (%x <= $disk(0)) {
      var %totalspace $calc(%totalspace + $disk(%x).size)
      var %totalfree $calc(%totalfree + $disk(%x).free)
      inc %x
   }
   say 10Total disks: $+(11,%x,10;) Total diskspace: $+(11,$bytes(%totalspace, g).suf,10;) Total Free Space: $+(11,$bytes(%totalfree, g).suf,10;) Used: $+(11,$bytes($calc(%totalspace - %totalfree), g).suf,10.)
}

/* below is a oneliner version, will also show disklabels when available. This one shows each individual disk. */

//var %x 1 | while (%x <= $disk(0)) { say $disk(%x).path $+($chr(91),$disk(%x).label,$chr(93),:) $+($bytes($calc($disk(%x).size - $disk(%x).free),g).suf,/,$bytes($disk(%x).size),g).suf) | inc %x }