error during export procedure-"File size limit exceeded"

hello all, i am running dbexport procedure on the database and the return is next error: "File size limit exceeded. Please increase hard resource limit using ulimit." The file which generated the error has about 2,137Gbytes. The machine running Linux Mandrake 9.0-kernel 2.4 and Informix 9.21 UC1 The output of ulimit -a: $ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited file size (blocks, -f) unlimited max locked memory (kbytes, -l) unlimited max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 1023 virtual memory (kbytes, -v) unlimited Is this limitation the same with chunk limit (2 Gb) or not? Is there a solution for this problem? Thank you!