IDMS

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  • 1.  Decommission of IDMS V15

    Posted Apr 21, 2020 07:52 AM
    Hello, 
    I want ask if anybody have experience with stop and decommission of IDMS. I was asked to prepare this action. I do it from sysprog point of view, not DBA. I know that this IDMS was prepared for stop several years (limiting of usage, moving data somewhere else). That is reason why on this IDMS wan't done any maintenance, so it is V15. I did migration from V18 to V19 and from those experiences I created some general plan for decommission. Definitely I miss something. If you have any comments or hints, please add it here. Thanks 


    Plan:
    Preparation:

    • Check which file use IDMS (DCMT D FI )
    • analyze batch (TADz check which jobs use IDMS loadlib)
    • Check if cicses are connected to IDMS

     Action:

    • Stop IDMS
    • delete target library: *.CAGJ*
    • delete IDMS files:

                   - delete journal file

                   - delete IDMS log files (if is not used SYSTEM.DCLOG)

                   - delete offloaded journal and log files

                   - delete IDMS loadlib (if different then CAGJLOAD )

                   - delete IDMS library where are stored jobs for IDMS - offload jobs... 

                   - delete system files for those areas:

    APPLDICT.DICTDB

    APPLDICT.DLODDB

    CATSYS.DCCAT

    CATSYS.DCCATL

    CATSYS.DCCATX

    DMLO.PROFILE

    EMPDEMO.EMPDEMO

    EMPDEMO.INSDEMO

    EMPDEMO.ORGDEMO

    EMPDEMO.ORGDEMO

    SYSDIRL.DIRLDB

    SYSDIRL.DIRLLOD

    SYSLOC.DCLSCR

    SYSMSG.DCMSG

    SYSTEM.DCDML

    SYSTEM.DCLOD

    SYSTEM.DCLOG

    SYSTEM.DCRUN

    SYSTEM.DCSCR

    SYSUSER.SECDD

    TOOLDICT.TOOLDML

    TOOLDICT.TOOLDML

     

    • remove IDMS SVC from CAS9
    • remove IDMS startup procedure from PROCLIB
    • remove IDMS option from ISPF panel, and CLIST library

     

    requests:

    • IDMS DBA team - delete customer databases and data
    • MVS team - remove IDMS libraries from APF, Linklist (Dynamically and statically)
    • automation team - remove IDMS from automation tool ( OPS, SA, autooprator, .... )
    • batch team - remove batch jobs from scheduler ( TWS, Control-M )
    • CICS team - remove IDMS definition from CICS
    • Network team - remove IDMS applid from VTAM

    I


  • 2.  RE: Decommission of IDMS V15

    Posted Apr 22, 2020 02:03 AM
    Hello,

    I think it is a very good plan for decomission. The only thing I would add is:
    - Deletion of the files of the application dictionary / s.
    - Deletion of the rest of the product libraries in addition to the CAGJLOAD.
    - Deletion of SMP files
    - Request the Development teams to delete the application programs (sources and objects).

    Regards.

    Jesús Martínez Lorrio
    BBDD y Transaccionales Mainframe

    GTS, Solutions, Del & Transf
    IBM Global Services Espana, S.A.



     Phone: 34 913 97 90 64
    IBM

    Sta. Hortensia 26-28
    Madrid, 28002
    Spain



    Salvo indicado de otro modo más arriba / Unless stated otherwise above:
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    Santa Hortensia, 26-28, 28002 Madrid
    Registro Mercantil de Madrid; Folio 1; Tomo 1525; Hoja M-28146
    CIF A28-010791





  • 3.  RE: Decommission of IDMS V15

    Posted Apr 27, 2020 02:38 AM
    Hello, 
    and thanks for advice. Also I found one more thing to do . Remove default user of STC task from RACF.