CP CP Use the CP command to transmit commands to the VM/370 control program
environment without leaving the eMS environment. The format of the CP command is: r 1 CP L- commandline ]
commandline is any CP command valid for your CP command priVilege class.
If this field is omitted, you are placed in the CP environment and may enter CP commands without preceding each
command with CP. To return to CMS, issue the CP command
BEGIN.
t. You must use the CP command to invoke a CP command: • within an EXEC procedure • If the implied CP (IMPCP) function is set to OFF for your
virtual machine • In a you send to the CMS batch facility
2. To enter a CP command from the CMS environment without CMS processing the command line, use the tcp function.
3. When you enter an invalid CP command following the CP command, you
receive a return code of -1. In an EXEC, this return code is +1.
All responses are from the CP command that was issued, and are followed
by the CMS ready message.
Section 2. CMS Commands 45

DDR
DDR Use the DASO Dump Restore (DDR) program to dump, restore, copy, or print VM/3 7 0 user minidisks. The DDF. program may run as a standalone program,
or under CMS via the DDR command. r I I I I The DOR program has five functions:
1. Dumps part or all of the data from a DASD device to tape.
2. Transfers data from tapes created by the DDR dump function to a
direct access device. The direct access device must be the same as
that which originally contained the data.
3. Copies data from one device to another of the same type. Data may
be reordered, by cylinder, when copied from disk to disk. In order
to copy one tape to another, the original tape must have been
created by the DDR DUMP function. 4. Prints selected parts of DASD and tape records in hexadecimal and
EBCDIC on the virtual printer.
5. Displays selected parts of DASD and tape records in hexadecimal and
EBCDIC on the terminal.
The format of the DOB command is: r ,
DDR (fn ft Ifml ] I! I L .I -----, , I , I L- r ,
fn ft Ifml I * I L J
is the identification of the file containing the control
statements for the DDR program. If no file
identification is provided, the DDR program attempts to
obtain control statements from the console. The filemode
defaults to * if a value is not provided.
1. If you use the CMS DDR command, CMS ignores the SYSPRINT control
statement and directs the output to the CMS printer OOE. 2. Be aware that OOB when run as a standalone program has limited
error recovery support. However, when DDR is invoked in CMS in a
virtual machine environment, the 1/0 operation is performed by CPo 3. OOR copies mode zero (private) files from a CMS disk if that disk
was linked RIO. Use read passwords to protect private files on eMS disks. 4. When running as a stand-alone program, OOR searches for a console
at address 009 or 01F. If there is no operational console at one
of these addresses, the program enters a wait state until an
interrupt occurs to identify the address of the console. If any
non-console device is physically connected to address 009 or 01F, it must be disconnected. 46 IBM VM/370 eMS Command ana Macro Reference