z/VM: CP Commands and Utilities Reference - z/VM - IBM

DDR
need to specify anything to the program about the tape format. After data is
restored, you receive the following message:
’BYTES RESTORED _____’
Notes:
1. When restoring DDR-compacted tapes which were created with a release of
DDR prior to Release 2.0, the number of bytes indicated by the 'BYTES
RESTORED' response will be larger than the number of bytes originally
indicated by the 'BYTES IN' response following the dump function. This
discrepancy is because DDR now uses a larger track header record format.
The current track header record is 4 bytes longer than that used in release
prior to Release 2.0, thus the 'BYTES RESTORED' value will be larger than
the 'BYTES IN' value by 4 bytes per track header record. This does not
compromise the integrity of the data restored.
2. DDR reads past any tape marks found between dumps during a restore.
cyl1 To cyl2 Reorder To cyl3
Only those cylinders specified are moved, starting with the first track of the first
cylinder (cyl1), and ending with the last track of the second cylinder (cyl2). The
REORDER operand causes the output to be reordered, that is, moved to
different cylinders, starting at the specified cylinder (cyl3) or at the starting
cylinder (cyl1) if cyl3 is not specified. The REORDER operand must not be
specified unless specified limits are defined for the operation; the starting and, if
required, ending cylinders (cyl1 and cyl2) must be specified. Note that if the
input device cylinder extents exceed the number of cylinders specified on the
output device, an error message results.
block1 To block2 Reorder To block3
Only the specified blocks are moved, starting with the first block (block1), up to
and including the last block (block2). The REORDER operand causes the data
to be moved to a different DASD location. The REORDER operand must not be
specified unless limits are defined for the operation. If block1 or block2 exceeds
the capacity of the input drive, an error message will result. Similarly, if the
reorder block, block3, exceeds the capacity of the output device, an error
message will be issued. When the output device is a tape, the device capacity
is considered to be the same as the capacity of the input FBA DASD or of the
FBA volume residing on the input tape.
CPvol
specifies that cylinder 0, or blocks 0-31 (for FBA devices) and all permanent,
parameter, and active directory space is dumped or copied as indicated by the
z/VM allocation record from the input device. In the case of a tape input
function specifying CPVOL, all the data is restored or copied.
ALL
specifies that the operation is to be performed on the entire DASD volume (all
cylinders or all blocks).
Note: The occurrence of message HCP705E (issued upon completion of the
copy, restore, or dump operation) indicates that an attempt was made to
copy, restore, or dump the contents of DASD locations beyond the
extents of the designated minidisk.
Restrictions
1806 z/VM: CP Commands and Utilities Reference
v Each track must contain a valid home address, containing the real cylinder and
track location.
v Record zero must not contain more than eight key and data characters.