Data Build Manual

Creating Sample Input Data to Test Data Build
Customizing Data Build
099331 Tandem Computers Incorporated 6–29
These commands copy the label information and data records to create a standard
IBM labeled tape with a subset of the data records. The block count in the EOF1
label represents the total number of blocks from the full data tape, however, this
field is not processed.
The second command copies the data records to the tape device; RECIN and
RECOUT are set to the original logical record size (LRECL) and blockin is set to
the original blocksize on tape (BLKSIZE).
To run this process, do the following:
1. Mount the full (original) data tape.
2. Enter the following command:
OBEY TAPEIN
3. Mount the target output tape.
4. Enter the following command:
OBEY TAPEOUT
Creating Sample Data
Using Two Tape Devices
If two tape devices are available, only one OBEY file is required as follows:
Create the following OBEY file TAPECOPY:
1. Insert the following command:
FUP COPY $TAPE1,$TAPE2,NO UNLOADIN,BLOCKIN 80, &
RECIN 80,NO UNLOADOUT,BLOCKOUT 80,RECOUT 80
2. Insert the following command:
FUP COPY $TAPE1,$TAPE2,NO UNLOADIN,BLOCKIN 23409, &
RECIN 51,NO UNLOADOUT,BLOCKOUT 23409, &
RECOUT 51,SKIPIN 1,SKIPOUT 1,COUNT 900
3. Insert the following command:
FUP COPY $TAPE1,$TAPE2,BLOCKIN 80,RECIN 80,SKIPIN 2, &
BLOCKOUT 80,RECOUT 80,SKIPOUT 2
To run this process, do the following:
1. Mount the full (original) data tape on $TAPE1.
2. Mount the target output tape on $TAPE2.
3. OBEY TAPECOPY.