2 Installing and Configuring OracleAS Adapter for IMS/TM

Hardware Requirements

The following table summarizes the hardware requirements for Oracle Connect.

Software Requirements

The following table summarizes the software requirements for Oracle Connect.

Post-Installation Procedures

Perform the following procedures after completing the installation to configure Oracle Connect.

• Allocate a dataset for INSTROOT.DEF.BRANDBIN, using 1 track and with RECFM=VB and LRECL=256. The block size is 6233.

  INSTROOT is the high-level qualifier where Oracle Connect is installed.

• Using FTP, copy the BRANDBIN file, in binary mode, from the Oracle Connect\IMSTM Legacy Adapter directory in the installation CD to the mainframe, to INSTROOT.DEF.BRANDBIN.

• Define the LOADAUT library as an APF-authorized library.

  Note:

  To define a DSN as APF-authorized, in the SDSF screen enter the following command:

  "/setprog apf,add,dsn=INSTROOT.loadaut,volume=vol002"
  

  Where vol002 is the volume where you installed Oracle Connect and INSTROOT is the high-level qualifier where Oracle Connect is installed.

  If the site uses SMS, then when defining APF-authorization in the SDSF screen, enter the following command:

  "/setprog apf,add,dsn=INSTROOT.loadaut,SMS"
  

  Ensure that the library is APF-authorized, even after an IPL (restart) of the computer.

• Move the INSTROOT.USERLIB(ATTDAEMN) and INSTROOT.USERLIB(ATTSRVR) members to any active proclib, such as user.proclib. ATTDAEMN and ATTSRVR members are run as started tasks.

  If you decide to change the name of the ATTSRVR member when you move it to a general high-level qualifier, then change the name specified in the StartupScript parameter in the daemon configuration to the new name:

  • Run INSTROOT.USERLIB(NAVCMD) and enter EDIT DAEMON IRPCDINI at the prompt.

  • Change the startupScript parameter from ATTSRVR to the new name for the server:

    <Workspace name="Navigator"
               startupScript="NEW_NAME"
               serverMode="reusable"
               ... />
    

  • Exit and save the changes.

• Change the following line in the ATTDAEMN script to include the IP address and port of the IBM z/OS platform.

  For example, before:

  // PARM='-B START IRPCDINI'
  

  After:

  // PARM='-B -L ip_address:2551 START IRPCDINI'
  

  Where ip_address is ip address of the computer, 2551 is the default port for starting the daemon and IRPCDINI is the default daemon configuration.

• The ATTDAEMN and ATTSRVR started tasks need permission to use an Open Edition TCP/IP stack. The owner must be a user with OMVS segment defined and the OMVS UID=0000000000.

• In the security manager, such as RACF, define ATTDAEMN and ATTSRVR with a started task class and a general profile that enables the following:

  • Permission to issue master console commands.

  • START authority for the ATTSRVR job.

  • Access to an Open z/OS segment (that defines access to TCP/IP OA sockets).

  • ALTER authority on datasets under INSTROOT to access to read, write, allocate and delete datasets under INSTROOT.

• The installation includes a PS, INSTROOT.DEF.GBLPARMS, that contains global environment information. This PS is read at startup and the correct software version is used, based on the details provided in the startup task.

  If you change the location of this member, then you must also change the relevant cards in the following jobs to the new locations:

  • ATTSRVR: Located in an active proclib, such as user.proclib

  • ATTDAEMN: Located in an active proclib, such as user.proclib

  • NAVSQL: Located in INSTROOT.USERLIB

• The input during the installation procedure is written to nnn.BUILDKIT.SRC(PARS). You can use this file to provide the same inputs if you rerun the installation, where nnn is the high-level qualifier you assign for the installation.

• For information about specifying Oracle Connect as the service using port 2551 in the TCP/IP network services file, refer to the TCP/IP documentation.

Starting the Daemon

Activate INSTROOT.USERLIB(ATTDAEMN) as a started task to invoke the daemon. For example, in the SDSF screen enter the following:

'/s ATTDAEMN'

Where INSTROOT is the high-level qualifier where Oracle Connect is installed.

To submit the daemon as a job, remove comments from the first two lines of the ATTDAEMN JCL, change the PARM line as described earlier, and run the job using the sub command. The following is a sample ATTDAEMN JCL.

//*ATTDAEMN JOB 'RR','TTT',MSGLEVEL=(1,1),CLASS=A,
//* MSGCLASS=A,NOTIFY=&SYSUID,REGION=8M
//STEP1 EXEC PGM=IRPCD,
// PARM='-B  START IRPCDINI'
//* PARM='-B -L :8883 START'
//STEPLIB DD DSN=INSTROOT.LOADAUT,DISP=SHR
//SYSPRINT DD SYSOUT=A
//GBLPARMS DD DSN=INSTROOT.DEF.GBLPARMS,DISP=SHR
// EXEC PGM=IRPCD,COND=((1,EQ,STEP1),(2,EQ,STEP1)),
// PARM='-KATTDAEMN START ''INSTROOT.DEF.IRPCDINI'''
//STEPLIB DD DSN=INSTROOT.LOADAUT,DISP=SHR
//SYSPRINT DD SYSOUT=A
//GBLPARMS DD DSN=INSTROOT.DEF.GBLPARMS,DISP=SHR
//SYSDUMP DD DUMMY

Setting Up Oracle Connect to Work Under IMS/TM

To run an IMS transaction, set OTMA (Open Transaction Manager Access), as follows:

1. Install OTMA with OTMA C/I where IMS resides, as OTMA is not automatically installed using the IMS INSTALL/IVP Dialog.

2. During IMS system definition, set the startup parameter in the IMS procedure to OTMA=YES. In addition, set additional OTMA-related parameters such as GRNAME for the XCF group name and OTMANM for the IMS member name in that XCF group, as in the following example:

   EDIT       IMS.PROCLIB(DFSPBIV1) - 01.03
   command ===>
   000082 AOIS =,
   000083 GRNAME=IMSATT01,
   000084 OTMA=YES,
   000085 MAXPST=
   000086 OTMANM=
   

3. Start the OTMA Callable Interface (C/I).

   Add an entry in the program properties table (PPT) for the OTMA C/I initialization program as follows:

   1. Edit the SCHEDxx member of the SYS1.PARMLIB data set by adding the following entry:

      PPT PGMNAME(DFSYSVI0) /*PROGRAM NAME =DFSYSVI0 */
      CANCEL    /*PROGRAM CAN BE CANCELED */
      KEY(7)    /*PROTECT KEY ASSIGNED IS 7 */
      SWAP      /*PROGRAM IS SWAPPABLE */
      NOPRIV    /*PROGRAM IS NOT PRIVILEGED */
      DSI       /*REQUIRES DATA SET INTEGRITY */
      PASS      /*CANNOT BYPASS PASSWORD PROTECTION */
      SYST      /*PROGRAM IS A SYSTEM TASK */
      AFF(NONE) /*NO CPU AFFINITY */
      NOPREF    /*NO PREFERRED STORAGE FRAMES */
      

   2. To make the SCHEDxx changes take effect, perform one of the following tasks:

      • Re-IPL the system.

      • Issue the SET SCH= command.

   3. Edit and submit the following JCL procedure to run DFSYSVI0:

      //OTMAINIT PROC RGN=3000K,SOUT=A,
      /PARM1=
      //*
      //IEFPROC EXEC PGM=DFSYSVI0,
      //REGION=&RGN
      //*
      //STEPLIB DD DISP=SHR,UNIT=SYSDA,
      //DSN=IMSVS.RESLIB
      //*
      //SYSPRINT DD SYSOUT=&SOUT
      //SYSUDUMP DD SYSOUT=&SOUT
      //*
      

4. Run DFSYSVI0 after the IPL, to initialize the OTMA C/I.

Setting Up Oracle Connect for Reentrancy

All Oracle Connect load modules are reentrant to enable subtasking. Therefore, move INSTROOT.LOAD to the Link Pack Area (LPA).

WhereINSTROOT is the high-level qualifier where Oracle Connect is installed.

Using the LPA reduces real storage usage, because everyone shares the LPA copy, and fetch time.

Installing Oracle Studio with the Wizard (SH installation)

You can install Oracle Studio by using the installation wizard. This allows you to easily carry out any standard or custom installation. Do the following for the Linux SH installation.

1. Install into a directory where you have permission.

2. Change the mode to execute mode. Type in:

   Chmod +x <file name>
   

3. Enter the following:

   ./ <file name>
   

   If you are not installing to the current directory, enter the full path.

Installing with a Silent Installation (RPM)

You can use the Linux RPM method to install Oracle Studio. Do the following to carry out a silent installation on Linux.

• Enter the following:

  rpm -i <file name>
  

  You can use RPM parameters to create a custom inslallation.

Setting Password Access to Oracle Studio

Initially, any operation performed using Oracle Studio does not require a password. You can set a password so that the first operation that involves accessing the server from Oracle Studio requires a password to be entered.

Perform the following steps:

1. From the Start menu, select Programs, Oracle and then select Studio. Oracle Studio opens.

2. Select Window from the menu bar and then select Preferences.

   The Preferences screen is displayed, as shown in the following figure:

   Figure 2-2 The Preferences screen

   
   Description of "Figure 2-2 The Preferences screen"
   
   

3. Select the Studio node.

4. Click Change master password. The Change Master Password screen is displayed, as shown in the following figure:

   Figure 2-3 The Change Master Password screen

   
   Description of "Figure 2-3 The Change Master Password screen"
   
   

5. Leave the Enter current master password field empty and type a new master password.

6. Confirm the password.

7. Click OK.

Specifying Users with Administrative Rights

By default, only the user who was specified during the installation as an administrator has the authorization to modify settings on that computer from Oracle Studio. This user can then authorize other users to make changes or to view the definitions for a selected computer. Adding a computer to Oracle Studio is described in "Setting Up the IBM z/OS Platform in Oracle Studio".

Perform the following steps to specify a user with administrative rights:

1. From the Start menu, select Programs, Oracle, and then select Studio. Oracle Studio opens, displaying the Design perspective.

2. Right-click the required computer in the Configuration Explorer and select Administration Authorization.

   The Administration Authorization screen is displayed, as shown in the following figure:

   Figure 2-4 The Administration Authorization screen

   
   Description of "Figure 2-4 The Administration Authorization screen"
   
   

   The screen has the following sections:

   Administrators: Administrators can view and modify all the definitions in Oracle Studio for the selected computer. On initial entry to Oracle Studio, every user is defined as a system administrator.

   Designers: Designers can view all the definitions for the computer in Oracle Studio and can modify any of the definitions under the Bindings and Users nodes for the selected computer. For example, Oracle Studio database administrator can add new data sources and adapters and can change metadata definitions for a table in a data source.

   Users: Users can view all the definitions for the computer in Oracle Studio for the selected computer. Regular users cannot modify any of the definitions.

3. Add users or groups of users by clicking Add User or Add Group for the relevant sections. The user or group that is added must be recognized as a valid user or group for the computer.

   Once a name has been added to a section, only the user or group who logs on with that user name has the relevant authorization.

Setting Up Run-time User Access to the IBM z/OS Platform

During run time, client access to Oracle Connect is provided by the user profile. A user profile contains name and password pairs that are used to access a computer, data source or application at run time, when anonymous access is not allowed.

1. In the Configuration view, expand the node of the computer for which you want to set the user name and password.

2. Expand the Users node.

3. Right-click the NAV user profile and select Edit User. The User Editor pane is displayed, as shown in the following figure:

   Figure 2-5 The User Editor pane

   
   Description of "Figure 2-5 The User Editor pane"
   
   

4. In the User editor, click Add to display the Add Authenticator screen.

5. Select Remote Machine from the Resource type list, as shown in the following figure:

   Figure 2-6 The Add Authenticator screen

   
   Description of "Figure 2-6 The Add Authenticator screen"
   
   

6. Enter the name of the IBM z/OS computer defined in Oracle Studio.

7. Enter the name and password used to access the computer and confirm the password.

8. Click OK.

Setting Up an Oracle Connect Adapter

To work with the Oracle Connect, you need to set up an adapter definition on the IBM z/OS platform to handle the interactions to and from an IMS/TM transaction. You use Oracle Studio to specify these definitions.

Perform the following steps:

1. From the Start menu, select Programs, Oracle, and then select Studio.

2. In the Configuration Explorer, expand the node of the computer defined in "Setting Up the IBM z/OS Platform in Oracle Studio".

3. Expand the Bindings folder. The binding configurations available on this computer are listed.

4. Expand the NAV binding. The NAV binding configuration includes branches for data sources and adapters that are located on the computer.

5. Right-click Adapters and select New Adapter to open the New Adapter wizard.

6. Enter a name for the back-end adapter.

   Note:

   The word event is a reserved word and cannot be used when naming an adapter.

7. Select IMS/TM as the back-end adapter type from the Type list as shown in the following figure:

   Figure 2-7 The New Adapter screen

   
   Description of "Figure 2-7 The New Adapter screen"
   
   

8. Select Create event queue for the adapter.

9. Click Finish. The back-end adapter is added to the list and the definition opens for editing.

   Note:

   Other adapters that are displayed in the Type list are not supported with the version of Oracle Connect installed at the site.

10. Select the Properties tab and change any of the properties for the adapter, as required.

    The Properties tab is shown in the following figure:

    Figure 2-8 The Adapter Properties tab

    
    Description of "Figure 2-8 The Adapter Properties tab"
    
    

    The following table lists the properties for the IMS/TM adapter:

    Table 2-12 Adapter Properties

    Property	Description
    cachLastTpipe	Cache the last transaction pipe used.
    cacheXcfConnection	Cache the XCF connection information.
    maxSessions	The maximum number of sessions allowed. The default value is 5.
    racfGroupId	The RACF facility group identification.
    racfUserId	The RACF facility user identification.
    tpipePrefix	The transaction pipe prefix used to associate between the transaction and the transaction pipe it is using. The default is ATTU.
    xcfClient	The Cross System Coupling Facility client name.
    xcfGroup	The Cross System Coupling Facility collection of XCF members to which the connection belongs. A group may consist of up to eight characters, and may span between multiple systems.
    xcfImsMember	The Cross System Coupling Facility group member.

    
    

Generating Outbound Interactions

Oracle Connect requires metadata describing the adapter interactions, including the structures used to pass information to and from the adapter.

If COBOL copybooks describing the adapter input and output structures are available, then you can import the adapter definition using the Metadata Import wizard in Oracle Studio Design perspective to generate interaction metadata. If the metadata is provided in a number of COBOL copybooks, with different filter settings (such as whether the first six columns are ignored or not), then you first import the metadata from copybooks with the same settings and later import the metadata from the other copybooks.

If COBOL copybooks describing the input and output structures are not available, then you need to manually define the metadata.

The following information is required during the import procedure:

• The COBOL copybooks: These are copied to the computer running Oracle Studio as part of the import procedure.

• The names of the IMS/TM transactions to be executed through the application adapter.

Use the Metadata Import procedure to generate interaction metadata, as follows:

1. In the Configuration view, right-click the IMS/TM back-end adapter defined in "Setting Up an Oracle Connect Adapter".

2. Select Show Metadata View, to display the Metadata tab, with the IMS/TM back-end adapter displayed under the Adapters list.

3. Right-click Imports and select New Import. The New Metadata Import screen is displayed.

   Figure 2-9 The New Metadata Import screen

   
   Description of "Figure 2-9 The New Metadata Import screen"
   
   

4. In the Import name field, enter a name for the import. The name can contain letters and numbers and the underscore character only.

5. Select ImsTm Import Manager from the Import type list.

6. Click Finish. The Metadata Import wizard is displayed.

7. Click Add. The Add Resources screen is displayed, which provides the option to select files from the local computer or copy the files from another computer.

8. If the files are on another computer, then right-click My FTP Sites and select Add. Optionally, double-click Add FTP site. The Add FTP Site screen is displayed.

9. Enter the server name or IP address where the COBOL copybooks reside and enter a valid username and password to access the computer (if anonymous access is used, then click Anonymous connection) then click OK.

   The FTP site is added to the list of available sites as shown in the following figure:

   Note:

   The selected server is accessed using the username as the high-level qualifier, enabling you to browse and transfer files.

   Figure 2-10 The Add Resources screen

   
   Description of "Figure 2-10 The Add Resources screen"
   
   

10. Right-click the computer and select Set Transfer Type. Enter the transfer type (ASCII or BINARY) and click OK.

11. Expand the list of the added site until you find the necessary COBOL files. To change the high-level qualifier, right-click the computer and select Change Root Directory. Enter the new high-level qualifier enclosed in quotes, and click OK.

12. Select the required COBOL copybook file or files and click Finish. The selected file or files are displayed in the Metadata Import wizard.

    Note:

    You can import the metadata from one COBOL copybook and later add to this metadata by repeating the import procedure using different COBOL copybooks.

    The format of the COBOL copybooks must be identical. That is, you cannot import a COBOL copybook that uses the first six columns with a COBOL copybook that ignores the first six columns. In this type of case you must repeat the import procedure.

13. Click Next. The Apply Filters screen is displayed, as shown in the following figure:

    Figure 2-11 The Apply Filters screen

    
    Description of "Figure 2-11 The Apply Filters screen"
    
    

14. Apply filters to the copybooks, as needed.

    The following table lists the available filters:

    Table 2-13 Available Filters

    Filter	Description
    COMP_6 switch	The MicroFocus COMP-6 compiler directive. Specify either COMP-6'1' to treat COMP-6 as a COMP data type or COMP-6'2' to treat COMP-6 as a COMP-3 data type.
    Compiler source	The compiler vendor.
    Storage mode	The MicroFocus Integer Storage Mode. Specify either NOIBMCOMP for byte storage mode or IBMCOMP is for word storage mode.
    Ignore after column 72	Ignores columns 73 to 80 in the COBOL copybook.
    IgnoreFirst6	Ignores the first six columns in the COBOL copybook.
    Replace hyphens (-) in record and field names with underscores (_)	Replaces all hyphens in either the record or field names in the metadata generated from the COBOL with underscore characters.
    Prefix nested columns	Prefix all nested columns with the previous level heading.
    Case sensitive	Specifies whether to be sensitive to the search string case.
    Find	Searches for the specified value.
    Replace with	Replaces the value specified for Find with the value specified here

    
    

15. In the import wizard, click Next. The Add Interactions screen is displayed, as shown in the following figure:

    Figure 2-12 The Add Interactions screen

    
    Description of "Figure 2-12 The Add Interactions screen"
    
    

16. Click Add to add an interaction for the IMS/TM adapter. Provide the information, as listed in the following table:

    Table 2-14 Interaction Parameters

    Parameter	Description
    Name	The name of the interaction. You can change the default name specified.
    Mode	The interaction mode. You can select one of the following: sync-send-receive: The interaction sends a request and expects to receive a response. This is the default mode. sync-receive: The interaction expects to receive a response sync-send: The interaction sends a request and does not expect to receive a response.
    Input	Identifies an input record. The input record is the data structure for the interaction. The records generated from the COBOL files specified at the beginning of the procedure are listed. Select the relevant record for the interaction. Note: You must specify an input record for each interaction before you can click Next. If the interaction does not require an input record, then the record specified here is ignored.
    Output	Identifies an output record. The output record is the data structure for the results of the interaction. The records generated from the files specified at the beginning of the procedure are listed. Select the relevant record for the interaction. Note: You must specify an output record for the interaction if the mode is set to sync-send-receive or sync-receive, before you can click Next.
    Description	Free text describing the interaction.
    Interaction-Specific Parameters	IMS/TM specific parameters: c: The interaction commit mode. maxSegmentSize: The maximum size of the segment. The default value is 32768 (bytes). transaction: The name of the transaction that is executed when the interaction is executed. You must specify a transaction name for each interaction. The maxSegmentSize parameter enables dynamically splitting large messages into smaller segments. Although the default value can be changed, the logic of IMS/TM transaction must correspond accordingly. The transaction must perform a GU call followed by a series of GN calls in order to compile the entire input message. A transaction output message, larger than 32K, is handled by the OTMS C/I interface which performs the task of assembling the output segments into a single buffer.

    
    

17. Add as many interactions as necessary and click Next to go to the Mark first data field step.

    The Mark first data field page is displayed.

    Figure 2-13 Mark First Data Field

    
    Description of "Figure 2-13 Mark First Data Field"
    
    

18. The COBOL copybooks for IMS transactions always begin with three fields that are provided by IMS. These fields should not be part of the metadata and they must be skipped in the import.

    In this step, you select the method for choosing first data field used for inputs and outputs. You can select one of the following:

    • Enter the number for the first input and output data fields: Select this and enter a line number for both the First input field and the First output field. The data at that line number will be the first data used for the input or output.

    • Manually mark the first data field of the transaction following the LL ,ZZ and TRANSNAME fields: When you select this option, select the first line to use for the imports and outputs from the field below.

19. Click Next to open the Import Metadata step. Specify that you want to transfer the metadata from the Windows computer to the IBM z/OS platform and click Finish.

The metadata is imported based on the options specified and it is stored on the IBM z/OS platform. An XML representation of the metadata is also generated.

After performing the import, you can view the metadata in Oracle Studio Design perspective Metadata tab. You can also make any fine adjustments to the metadata and maintain it, as necessary.