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CA Dynam for VSE User Guide

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Disk File Maintenance Utilities<br />

• After a CLOSE command <strong>for</strong> INPUT (RESTORE, REORG, LISTTAPE<br />

commands), the tape is positioned to read the trailer label of the last file<br />

read.<br />

• To position the tape correctly when backspacing, it is necessary to BSF <strong>for</strong><br />

the desired number of files plus one (+1), and then FSF once to pass over<br />

the last tapemark found.<br />

• When creating or reading multifile DYNUTIL tapes, you can simplify<br />

operation considerably if you avoid <strong>CA</strong> <strong>Dynam</strong>/T intervention either by<br />

disabling <strong>CA</strong> <strong>Dynam</strong>/T, or by using a <strong>for</strong>m of TLBL that bypasses <strong>CA</strong><br />

<strong>Dynam</strong>/T processing.<br />

Examples<br />

Write more than one DUMP to a single tape file.<br />

DUMP 'TEST*' VOL=SYSWK1<br />

DUMP 'UTIL*' VOL=PROD01<br />

Write more than one DUMP to successive separate tape files.<br />

DUMP 'TEST*' VOL=SYSWK1<br />

CLOSE DUMP (SYS005 NORWD)<br />

OPEN DUMP (SYS005 NORWD OUTPUT)<br />

DUMP 'UTIL*' VOL=PROD01<br />

LISTTAPE from the second DUMP file on a tape.<br />

TAPE SYS006 (FSF 3)<br />

OPEN RESTORE (SYS006 NORWD)<br />

LISTTAPE from the first two DUMP files on a tape.<br />

LISTTAPE<br />

CLOSE RESTORE (SYS006 NORWD)<br />

TAPE SYS006 FSF<br />

OPEN RESTORE (SYS006 NORWD INPUT)<br />

LISTTAPE<br />

LISTTAPE from the fourth and then the second DUMP files.<br />

TAPE SYS006 (FSF 9)<br />

OPEN RESTORE (SYS006 NORWD INPUT)<br />

LISTTAPE<br />

CLOSE RESTORE (SYS006 NORWD)<br />

TAPE SYS006 (BSF 9)<br />

TAPE SYS006 FSF<br />

OPEN RESTORE (SYS006 NORWD INPUT)<br />

Chapter 5: Supporting Disk File Management 5–41

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