Tapes Created with ZERO retention period (DLm with DD).

Summary: A tape that is created with either an explicit retention period of zero days or with no retention period specified, using a DLm Device with Data Domain Retention Lock (DDRL). The request is not honored by the DLm solution, and instead, a longer retention period is applied depending upon the storage retention lock dates specified. ...

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Symptoms

Here is an example of the BTIlog entry:
Example of the BTIlog entry
 
 

Cause

There is a problem in the Mainframe Data Library, virtuent code when an expiration date is set for today, indicating no retention date should be set. The virtuent does not honour this request and instead sets the retention date as defined by the DD back end.

Resolution

This issue is addressed in a later release of DLm code.

Workaround: 
  • Use a YEAR/DATE option = 2022/0 (meaning there is no such date) then NO retention date set.
  • Use a DATE option = 1 (set to minimum retention period) the 1-day retention date is set.

Affected Products

Disk Library for mainframe DLm2100, Disk Library for mainframe DLm2500, Disk Library for mainframe DLm8100, Disk Library for mainframe DLm8500
Article Properties
Article Number: 000204108
Article Type: Solution
Last Modified: 15 May 2026
Version:  7
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