The stop_iq utility on UNIX platforms fails to report running servers when the path to the server exceeds 74 characters.
As a workaround, use a ps -ef command to display servers with long paths. For example:
ps -ef|grep iqsrv rsmithson 1133 1 0 07:04:32 ? 223:35 /sunsys1234/users/rsmithson/mybigtest1234_withdeletion _allcol/IQ-15_0/bin64/iqsrv1 rsmithson 2046 862 0 10:02:30 pts/3 0:00 grep iqsrv