Isn't there a contradiction between the first and the last two? It cannot be both free and have no unused cylinders or tracks. The F5 DSCBs determine what is free; the F1, F3 and F6 define what is allocated. If the first or only F5 is all zeros, there is no free extent.
Regards, Richard Schuh > - The first free extent begins on track 1 and extends to the end of the volume > - There are no unused cylinders in the extent > - There are no unused tracks in the extent
