DDR
DDRUse 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 underCMS via the DDR command. r I I I I The DOR program has five functions:
1. Dumps part or all of the data from aDASD 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
createdby 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 ofDASD and tape records in hexadecimal and
EBCDIC on the terminal.
The format of theDOB command is: r ,
DDR (fn ftIfml ] I! I L .I -----, , I , I L- r ,
fn ftIfml 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 theCMS DDR command, CMS ignores the SYSPRINT control
statement and directs the output to theCMS printer OOE. 2. Be aware that OOB when run as a standalone program has limited
error recovery support. However, when DDR is invoked inCMS in a
virtual machine environment, the1/0 operation is performed by CPo 3. OOR copies mode zero (private) files from a CMS disk if that disk
was linkedRIO. Use read passwords to protect private files on eMS disks. 4. When running as a stand-alone program, OOR searches for a console
at address009 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 toaddress 009 or 01F, it must be disconnected. 46 IBM VM/370 eMS Command ana Macro Reference
DDR
or under
1. Dumps part or all of the data from a
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
EBCDIC on the virtual printer.
5. Displays selected parts of
EBCDIC on the terminal.
The format of the
DDR (fn ft
fn ft
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
statement and directs the output to the
error recovery support. However, when DDR is invoked in
virtual machine environment, the
was linked
at address
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