Megatest

			    (if (args:get-arg "-config")(args:get-arg "-config") "megatest.config")
			    environ-patt: "env-override"
			    given-toppath: (get-environment-variable "MT_RUN_AREA_HOME")
			    pathenvvar: "MT_RUN_AREA_HOME"))
	(set! *configdat*  (if (car *configinfo*)(car *configinfo*) #f))
	(set! *toppath*    (if (car *configinfo*)(cadr *configinfo*) #f))
	(if *toppath*
	    (let ((dbdir (conc *toppath* "/db")))
	      (handle-exceptions
	       exn
	       (debug:print 0 "ERROR: failed to create the " dbdir " area for your database files")
	       (if (not (directory-exists? dbdir))(create-directory dbdir)))
	    (setenv "MT_RUN_AREA_HOME" *toppath*) ;; to be deprecated
	      (setenv "MT_RUN_AREA_HOME" *toppath*))
	    (debug:print 0 "ERROR: failed to find the top path to your Megatest area."))))
  *toppath*)

(define (get-best-disk confdat)
  (let* ((disks    (hash-table-ref/default confdat "disks" #f))
	 (best     #f)
	 (bestsize 0))