ENABLE Use the ENABLE command to enable the following previously disabled or
nonenabled devices so users may access the VM/370 system: • 3270 (locally attached only) and the 3138, 3148, and 3158 consoles. • 2701, 2702, and 2703 (270x) • 3704 and 3705 in Emulation Program mode only
Previously enabled lines are not affected by the ENABLE command.
This command affects only low speed communication lines with a data rate
not greater than 600 bps (bits per second). For 3704/3705 resources
running in NCP or PEP mode and 3270 remote devices, use the NETWORK ENABLE command. The format of the ENABLE command is:
ENable
{
raddr ••• }
ALL
raddr... are the addresses (cuu) of the lines that are to be enabled.
If more than one address is specified, each must be separated
from the others by one or more blanks.
ALL enables all previously disabled or non-enabled locally
attached 3270 display terminals and display copy printers
(3284/3286 etc.), 3704/3705 (Emulation Program mode only), and 270x lines.
Notes: Do not atteapt to enable terminal devices that are not supported as--VM/370 virtual machine system consoles. Non-supported console
devices can only be used as dedicated devices attached to
multiple-access system virtual machines. COMMAND COMPLETE Note: No error indication enabled. Issue the QUERY enabled.
is provided if no lines are available to be LINES command to see how many lines are Section 3. CP Commands 73

FLUSH Use the FLUSH command to halt and immediately purge or, optionally, hold current output on a specified real unit record device. The device
resumes activity with the next SCheduled spool file. The format of the FLUSH command is:
Flush raddr [ALL] [HOld] L- _________________________________________________________________________ J raddr
ALL HOLD is the address (cuu) of the real
whose activity is to be terminated
or punch).
unit record output device
(that is, the real printer
deletes all copies of the current output file. If more than
one copy of the current output file is being printed or
punched and this option is specified, all copies are deleted;
if ALL is not specified, only the current copy is deleted and
the next copy, if any, is printed or punched.
places the spool file in system hold status. If this option
is specified, the terminated spool file is not purged, but is
put in a system hold status and can be reset using the CHANGE command. Y,§age 1. The FLUSH co •• and is usually invoked when it is apparent that a mistake in output queuing has occurred, or if a high priority job must be started before the current job has finished. For example, a file was directed to a printer that is equipped with the wrong
printer train to process that file, or a file was misdirected to the real punch-ratliet than a user·s virtual PUllch unit. For example: 2. FLUSH E HO Special handling is required if a spool file is started on a real
output device that cannot be made ready. When such a condition
arises, an error message is directed to the operator, who can
recover the file and restart it. To do so, he must enter the
following commands: FLUSH raddr [HOLD] DRAIN raddr
Following the entry of these commands, the "FATAL I/O ERROR" message is issusd to the operator and the de¥ice is logically offline. No attempt is made by the system to use the device until
the operator puts it back online via the VARY command.
If HOLD is specified, the file is placed in system hold status; if HOLD is not specified, the file is requeued and started on another device (if
one is available). Both the FLUSH and DRAIN commands must be issued to
recover the file.
14 VM/370 Operator's Guide