R3trans fails from RHEL6 application server

I have an SCM 7.0 Linux/MaxDB application server that was working fine, but now that it has been upgraded to RHEL6, won't connect back to the db server.  From the application server, I run R3trans -dwv, and it returns this: 

> R3trans -dwv

This is R3trans version 6.24 (release 720 - 08.07.13 - 20:13:05 ).

unicode enabled version

2EETW169 no connect possible: "maybe someone set invalid values for DIR_LIBRARY ('/usr/sap/APP/SYS/exe/run') or dbms_type ('ada')"

R3trans finished (0012).

I've already verified that dbms_type = ada and DIR_LIBRARY = /usr/sap/APP/SYS/exe/run in the environment.

When I look at the trans.log file that is created, here is what I'm seeing;

> more trans.log

4 ETW000 R3trans version 6.24 (release 720 - 08.07.13 - 20:13:05 ).

4 ETW000 unicode enabled version

4 ETW000 ===============================================

4 ETW000

4 ETW000 date&time   : 10.11.2014 - 17:05:32

4 ETW000 control file: <no ctrlfile>

4 ETW000 R3trans was called as follows: R3trans -dwv

4 ETW000  trace at level 2 opened for a given file pointer

4 ETW000  [     dev trc,00000]  Mon Nov 10 17:05:32 2014                                                  44  0.0

00044

4 ETW000  [     dev trc,00000]  db_con_init called                                                        13  0.0

00057

4 ETW000  [     dev trc,00000]  set_use_ext_con_info(): usage of ssfs switched off (rsdb/ssfs_connect=0)

4 ETW000                                                                                                  18  0.0

00075

4 ETW000  [     dev trc,00000]  determine_block_commit: no con_hdl found as blocked for con_name = R/3

4 ETW000                                                                                                  13  0.0

00088

4 ETW000  [     dev trc,00000]  create_con (con_name=R/3)                                                  7  0.0

00095

4 ETW000  [     dev trc,00000]  Loading DB library '/usr/sap/APP/SYS/exe/run/dbsdbslib.so' ...            25  0.0

00120

4 ETW000  [    dlux.c  ,00000]  *** ERROR => DlLoadLib()==DLENOACCESS - dlopen("/usr/sap/APP/SYS/exe/run/dbsdbsli

b.so") FAILED

4 ETW000                          "libSQLDBC77.so: cannot open shared object file: No such file or directory"

4 ETW000                                                                                                 709  0.0

00829

4 ETW000  [    dbcon.c ,00000]  *** ERROR => Couldn't load library '/usr/sap/APP/SYS/exe/run/dbsdbslib.so'

4 ETW000                                                                                                  61  0.0

00890

2EETW169 no connect possible: "maybe someone set invalid values for DIR_LIBRARY ('/usr/sap/APP/SYS/exe/run') or d

bms_type ('ada')"

I'm concerned about the libSQLDBC77.so error - as it lives in /sapdb/programs/lib on the db server, but /sapdb isn't mounted on the application server.

Any help will be appreciated...

Thanks,

John