Problem DFDSS in Z/Os 1.12 environment with 9840 in 3490 Mode

(Doc ID 1379985.1)

Last updated on SEPTEMBER 06, 2017

Applies to:

Sun StorageTek 9840 Tape Drive - Version: Not Applicable and later    [Release: N/A and later]
Sun StorageTek 9840A Tape Drive - Version: Not Applicable and later    [Release: N/A and later]
Sun StorageTek 9840B Tape Drive - Version: Not Applicable and later    [Release: N/A and later]
Sun StorageTek 9840C Tape Drive - Version: Not Applicable and later    [Release: N/A and later]
IBM z/OS on System z
DFDSS with the Z/OS 1.12 default Blksize 256K

Symptoms

Cannot Write on 9840 drive generated in 3490 Mode
MVS Message generated  
IEC141I 013-68,IFG0196L,.
and
ADR049E (001)-STEND(01), 2011.326 13:46:44 DFSMSDSS FUNCTION TASK ABEND RECOVERY ROUTINE WAS ENTERED. SYSTEM ABEND CODE=0013 REASON

Changes

Upgrading to Z/OS 1.12 from previous version 

Cause

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