INFORMIXTERM
The INFORMIXTERM environment variable specifies whether 4GL should use
the information in the termcap file or the terminfo directory. INFORMIXTERM
determines terminal-dependent keyboard and screen capabilities such as the
operation of function keys, color and intensity attributes in screen displays,
and the definition of window border and graphics characters.
If INFORMIXTERM is not set, the default setting is termcap. When 4GL is
installed on your system, a termcap file is placed in the etc subdirectory of
$INFORMIXDIR. This file is a superset of an operating system termcap file.
You can use the termcap file supplied by Informix, the system termcap file, or
a termcap file that you created yourself. You must set the TERMCAP
environment variable if you do not use the default termcap file.
The terminfo directory contains a file for each terminal name that has been
defined. It is supported only on machines that provide full support for the
UNIX System V terminfo library. For details, see the Version 6.0 on-line
machine notes for your machine.
Set the INFORMIXTERM environment variable to terminfo as follows:
C shell: setenv INFORMIXTERM terminfo
Bourne shell: INFORMIXTERM=terminfo
export INFORMIXTERM
Set the INFORMIXTERM environment variable to termcap as follows:
C shell: setenv INFORMIXTERM termcap
Bourne shell: INFORMIXTERM=termcap
export INFORMIXTERM
Note: If INFORMIXTERM is set to termcap, you must set the UNIX environment
variable TERMCAP; if INFORMIXTERM is set to terminfo, you must set the UNIX
environment variable TERMINFO.
setenv INFORMIXTERM
terminfo
termcap

У меня как-то при трех описанных в DBSPACETEMP спэйсах, из которых реально существовало только 2, в качестве темп использовался rootdb. Проблема исчезла после исправления DBSPACETEMP и перезагрузки.