1    /BRIEF

    For each context block, displays a brief summary that includes such
    contents as the I/O type, the start virtual block number (VBN), and
    the I/O block count.

2    /FULL

    Displays the complete contents of each selected context block.  This
    is the default.

3    /STALLING

    Shows only contexts that are in a stalled state (i.e., have a stall reason
    code other than estrNotStalling).