Steps for configuring a multisystem node

Before you begin: You need to have the information about the nodes. You should use the information from RRSF initialization worksheet and scenario.

Perform the following steps to configure a multisystem node.

Synchronize the USER and GROUP profiles between the two databases. For information on how you can do this, see Synchronizing database profiles.
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On MVSA and MVSB, issue RACF® commands to configure MVSA and MVSB as member systems of multisystem node NODEAB.
Example: On MVSA and MVSB, issue:
```
TARGET NODE(NODEAB) SYSNAME(MVSA) PROTOCOL(APPC(LUNAME(LU0A)))
       LOCAL WORKSPACE(VOLUME(MVS001)) PREFIX(SYS1) OPERATIVE MAIN

TARGET NODE(NODEAB) SYSNAME(MVSB) PROTOCOL(APPC(LUNAME(LU0B)))
       LOCAL WORKSPACE(VOLUME(MVS001)) PREFIX(SYS1) OPERATIVE
```
Create a shared RACF parameter library for MVSA and MVSB, and set up MVSA and MVSB to invoke a common member of the parameter library at initialization. (See The RACF parameter library for information on how to do this.) Add the commands you just issued to the common initialization member, to ensure that in the future RACF comes up with the correct RRSF configuration.

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On MVSA and MVSB, issue RACF commands to configure NODEX as a remote RRSF node for each of them.
Example: On MVSA and MVSB, issue:
```
TARGET NODE(NODEX) PROTOCOL(APPC(LUNAME(LU0X)))
       WORKSPACE(VOLUME(MVS001)) PREFIX(SYS1) OPERATIVE
```
Add this command to the common initialization member of the RACF parameter library.
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On NODEX, issue RACF commands to define NODEAB as a remote multisystem node for NODEX, with MVSA defined as the main system.
Example: On NODEX, issue:
```
TARGET NODE(NODEX) PROTOCOL(APPC(LUNAME(LU0X))) LOCAL
       WORKSPACE(VOLUME(MVS005)) PREFIX(SYS1) OPERATIVE

TARGET NODE(NODEAB) SYSNAME(MVSA) PROTOCOL(APPC(LUNAME(LU0A))) MAIN
       WORKSPACE(VOLUME(MVS005)) PREFIX(SYS1) OPERATIVE

TARGET NODE(NODEAB) SYSNAME(MVSB) PROTOCOL(APPC(LUNAME(LU0B)))
       WORKSPACE(VOLUME(MVS005)) PREFIX(SYS1) OPERATIVE
```
Create a RACF parameter library for NODEX and set up NODEX to invoke a member of the parameter library at initialization. (See The RACF parameter library for information on how to do this.) Add the commands you just issued to the initialization member, to ensure that in the future RACF comes up with the correct RRSF configuration.
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When you are done you have configured the RRSF network shown in Figure 1.