The CTSEDATE date subroutine can be called from your CA Earl program to provide date manipulation functions for date fields retrieved from the CA 1 TMC.
The following fields are stored in the CA 1 CA Earl record and may be used in date manipulations:
The expiration date for the volume
A field containing the CA 1 Version 5.1 expiration date type:
0—Zeros
4— Internal Julian date
8—Old Julian date format
12—FOREIGN (Non-CA 1 Control)
16—LDATE/ddd (Days Since Last Used Control)
20—CATALOG (Catalog Control)
24—CYCLE/ccc (Cycle Control)
28—PERMANENT (Permanent Retention Control)
32—CATLG/ddd (Catalog Days Control)
36—USER/uuu (User Control)
40—STATS/sss (Status Control)
Note: In many instances, you must know the type of expiration date for a volume to perform any meaningful date calculations based on EXPDT.
Date that volume was created
Date that volume was last used
Date that tape was last cleaned
Date that tape was first used
Date that tape was moved out
Current date
Current time
Date that volume was last updated.
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