Hi,
Can any one tell me, whether it is possible to connect to DB2 database running in mainframe server from a Unix application , without using 'DB2 Connect' ?

it depends on how you want to connect ... You can use type-4 jdbc drivers which does not need db2 connect installed, but still requires db2 connect licensing.

There are vendors who do odbc drivers for zos mainframe. search on the web.

Please quote why you want to connect to db2 mainframe without db2 connect and what application (eg. jdbc) you are planning to use. you are likely to get a more useful response. mentioning the db2 version on the mainframe and your client platform will also help.

Thanks

Sathyaram

Sure - you can use DB2 ESE instead of DB2 Connect (not too late to start thinking about 4th qtr earnings for IBM)

You can use "IBM Data Server Driver for ODBC & CLI" or "IBM Data Server Driver package". Both have a small footprint, and you will simply need the license files (DB2 Connect license) to connect to DB2 over z/OS.

More Info:-
IBM DB2 9.7 for Linux, UNIX and Windows Information Center

Download information:-
IBM DB2 9.7 for Linux, UNIX and Windows Information Center

Regards,
Sawan Gupta
IBM India Software Labs