Devices are files or portions of a disk that are used to store databases and database objects. You can initialize devices using raw disk partitions or operating system files.
Adaptive Server requires the following devices:
master – to store system databases.
sybsystemdb – to store information about transaction in process.
sysprocsdev – to store system procedures.
The master, sybsystemdb, and sysprocsdev devices are created when you create a new Adaptive Server.