it unavailable. The format of the
cuu is the virtual device address of the disk that is to be released.
basic control mode and
virtual machine in
is the mode letter at which the disk is currently accessed.
DET specifies that the disk is to be detached from your virtual
1. If a disk is accessed at more than one mode
command releases all modes. If you access a
mode letter of an active
file directory is sorted and rewritten on disk; user(s) who may
subsequently access the same disk may have a resultant favorable
decrease in file search time.
not released. The extensions may be referred to by their own mode
letters. If a disk is then accessed with the same
original parent disk, the original read-only extensions remain
This is a
It indicates that the disk has been detached.