The %FREECNT utility displays the number of free blocks in the database files associated with the current global directory.
Example:
GTM>DO ^%FREECNT
Region Free Total Database file
------ ---- ----- --------------
$DEFAULT 63 100 (63.0%) USER:[DIR]MUMPS.DAT;
GTM>
This example invokes %FREECNT at the GTM> prompt that displays the number of free blocks and percentage of free space available in the current global directory.