DL/I 1.12.1 available
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The new DL/1 1.12.1 update is now available. This major update provides DL/I partitioning, which lifts the 4 GB limitation for DL/I segment types.
DL/I 1.12.1 is only available for z/VSE 6.2. The former DL/I 1.12.0 can also run on z/VSE 6.2. It is now end of marketing, that is DL/I 1.12.0 can no longer be ordered.
Migration from DL/I 1.12.0 to 1.12.1 should be an easy task. If you don't use partitioning, the database will not change. More migration details are described in the DL/I 1.12.1 Release Guide. The Release guide is available in the z/VSE PDF library here. It's a link on the z/VS
The partitioning function splits a DL/I segment type into partitions (VSAM datasets). DL/I 1.12.1 comes with an exit, that selects the correct partition for the records to be retrieved. Each dataset can be up to about 4 GB in size. To migrate to DL/I partitioning you have to add the number of partitions and a 5 or 6 character database name to the Database Descriptor (DBD), unload the database, run the DBDgen / ACBgen with the new partition parameters and do a database reload.
This fulfills customer requirement RFE 67331 - DL1 increase 4 GB sequent Limit size.