CA Dynam for VSE User Guide

Using CA Dynam/T
When the interval expires, CA Dynam/T wakes up and performs AVR to
attempt to locate the desired tape. If it has been mounted, processing
continues without operator console activity. If CA Dynam/T still cannot locate
the tape, it again waits the specified number of seconds, then repeats AVR.
This sequence is repeated until the operator has either mounted the tape, or
the user-specified number of tries has been exhausted, at which time the
mount message is reissued (this time with an operator response required).
With proper education and procedures, this facility can significantly reduce the
number of operator console interactions. A reasonable time between AVR
requests (for example, 30 seconds) allows tapes to be located in a timely
fashion, but does not cause undue overhead through AVR if operator
intervention is to be needed. You can select the ALARM(YES) parameter in the
DYNAM/T option record to ensure the operator is aware of the informational
MOUNT messages which appear while AUTO-RETRY is in progress; a console
alarm is sounded whenever a MOUNT message is issued. For more information
about instructions in the coding and use of the DYNAM/T option record, see
the Programming Guide.
TLBL Statement Extensions and Format
CA Dynam/T requires a VSE standard TLBL for each controlled file. You can
submit the TLBL in the job stream, or place it in the partition or system
standard label area. All normal VSE labeling conventions apply.
Some of the fields of the TLBL have been functionally extended to provide
additional information to CA Dynam/T, allowing the user to better control the
processing of tape files. These extensions permit you to specify the following:
• Data set names up to 44 characters
• Retention
• Version (generation)
• Volume serial number
• Volume sequence number
• TLBL options
TLBL Statement Format
The VSE standard TLBL format is used by CA Dynam/T.
// TLBL filename,'file-id',ret,volser,volseq,fileseq,gen,ver
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