CA Dynam for VSE User Guide

Tape File Management Utilities
Make sure to specify the correct volume serial and sequence numbers when
entering the parameters; the Catalog is updated as soon as the numbers are
verified. Define each tape file to be restarted under CA Dynam/T control to
TDYNRST. When the last tape file has been defined, enter EOB/END to
terminate TDYNRST processing.
TDYNRST Control Statement Format
filename,volser,volseq,{I|O}
filename
volser
volseq
I|O
Indicates the 1- to 7-character file name.
Specifies the 1- to 6-character volume serial number.
Identifies the 1- to 4-numeric volume sequence number.
Symbolizes whether the file is to be used as Input or Output.
Example:
Original JCL for checkpointed program
// JOB UPDATE
// ASSGN SYS010,283 CHECKPOINT FILE
// TLBL TAPEIN,'MASTER FILE' USES SYS008
// TLBL TAPEOUT,'MASTER FILE' USES SYS009
// EXEC UPDATE
/&
The data set MASTER FILE is a CA Dynam/T-controlled data set. TAPEIN uses
SYS008 and TAPEOUT uses SYS009. The checkpoint file is SYS010 on drive
283. Checkpoint number 0007 was taken in volume two of TAPEIN, serial
number 000817, and volume three of TAPEOUT, serial number 000243. The
restart JCL might be:
// JOB UPDATE
// ASSGN SYS010,283 CHECKPOINT FILE
// ASSGN SYS008,280
// TLBL TAPEIN,'MASTER FILE' USES SYS008
// ASSGN SYS009,281
// TLBL TAPEOUT,'MASTER FILE' USES SYS009
// EXEC TDYNRST
TAPEIN,817,2,I
TAPEOUT,243,3,O
/&
Chapter 3: Supporting Tape File Management 3–15