General hints for raw devices:
Use OS command to create raw device, aware of the block size selection. It always depends on your record size
Set the permission to raw device (e.g. owner: sag, read-write)
Use adabas utility “ADADEV” to initialize the raw device
Determine ASSO,DATA,WORK containers blocksize (every I/O is done on block level)
Use adabas utility “ADAFRM” to create database
Do you have a real need to go with raw disk ? File system is now just as fast as raw disk than in the past OS and a lot easier to manage.