FileMaster copy IAM indexed dataset produces no INDEX

Products

• File Master Plus

Issue/Introduction

Using FileMaster R12.0 to copy IAM indexed dataset to new dataset, found that the new dataset is a sequential dataset with no index.

FileMaster shows no INDEX information.

 

Environment

FileMaster R12.0

Resolution

Both FileMaster and IAM are working as designed.
IAM emulates VSAM in sequential files.

Additional Information

This case was a misunderstanding.
To define an IAM dataset in IDCAMS, you only need to specify the OWNER as ($IAM)

e.g.
//*  EXAMPLE OF IDCAMS DEFINE OF AN IAM FILE  *//
//*
//IAMDEFIN EXEC PGM=IDCAMS
//SYSPRINT DD   SYSOUT=*
//SYSIN    DD   *
  DEFINE CLUSTER            -
    (NAME(MY.IAM.KSDS)      -
     OWNER($IAM)            -
     VOLUMES(MYVOL1)        -
     CYL(10 1)              -
     RECORDSIZE(100 1000)   -
     KEYS(24 8)             -
     FREESPACE(5 20)        -
     SHAREOPTIONS(2 3)      -
     REUSE   )
  LISTCAT ENT(MY.IAM.KSDS)  ALL
/*

This creates a sequential file that emulates VSAM.