BI 4.0 : (CS) "DBDRiver Fail to Init" - DB2 Database

Hi,

We are using BI 4.0 SP6 On Redhat Linux. We have installed DB2 Client (Version 10.1.3).

WebI report is not working and giving below error when refreshed

Database Error: (CS) "DBDriver failed to init: / /dataAccess/connectionServer/drivers/lib64/ libdbd_wdb2cli.so (IES 10901)

On Unix, DB2 command is working and we can connect to database. We have both 32 bit and 64 bit installed. PATH variable have DB2 path added.

Any ideas?