How to increase the size of a VTOC

ICKDSF can now change the size of the VTOC without re-initialising the volume. Two methods are available:

1.    Extend the VTOC in place (if there is free space next to the VTOC):

    REFORMAT UNIT(xxxx) VERIFY(serial) EXTVTOC(new size)

3.    Move the VTOC to a different location on the volume:

    REFORMAT UNIT(xxxx) VERIFY(serial) NEWVTOC(cc,hh,n)