oninit error

Hi All, While executing oninit or onmonitor I am getting following error ld.so.1: oninit: fatal: ismdd09a.so: can't open file: errno=2 Killed ld.so.1: onmonitor: fatal: ismdd09a.so: can't open file: errno=2 Killed There is no message in log file What is this file and what is use of this file? About file detail The file is at $INFORMIXDIR/lib -rwxr-xr-x 1 informix informix 21248 Jul 29 1997 ismdd09a.s ismdd09a.so: ELF 32-bit MSB dynamic lib SPARC Version 1, dynamically linked, not stripped Setup Informix Version : INFORMIX-Universal Server Version 9.12.UC2 DBTEMP=/opt/informix/heng/tmp INFORMIXDIR=/home1/infoksb/informix INFORMIXSERVER=infksb_shm INFORMIXSQLHOSTS=/home1/infoksb/informix/etc/sqlhosts LD_LIBRARY_PATH=/home1/infoksb/informix/lib:/home1/infoksb/informix/lib/esql ONCONFIG=onconfig.ius PATH=/home1/infoksb/informix/bin:/home1/infoksb/informix/lib:/home1/infoksb/informix/lib/esql:/usr/local/bin:/usr/sbin:/usr/bin:/bin:/usr/dt/bin:/usr/openwin/bi n:/etc:/usr/sbin:/usr/ccs/bin:/usr/ccs/lib:/usr/sworks/SUNWspro/bin:/usr/local/b in:/opt/IXImd12s/bin:/opt/SUNWspro/bin:/usr/ucb