onbar Log backup to device '/dev/null' not allowed

Technote (troubleshooting)


2011-04-14 09:18:57 26941 26927 /opt/informix/bin/onbar_d -b -l

2011-04-14 09:18:57 26941 26927 Unable to start the logical log backup: Log backup to device '/dev/null' not allowed

2011-04-14 09:19:02 26941 26927 /opt/informix/bin/onbar_d complete, returning 131 (0x83)


AN onbar logical log backup to device '/dev/null' not allowed. The ONCONFIG parameter LTAPEDEV is set to /dev/null

Resolving the problem

The resolution to this problem depends on if you want to backup logical logs ( data changes since the last archive ) or not. This link will take you to a document that describes the two methods you can use to resolve this problem:


Please navigate to this page for onbar setup instructions:


Document information

More support for:

Informix Servers

Software version:

7.3, 9.4, 10.0, 11.1, 11.5, 11.7, 11.70

Operating system(s):

AIX, HP-UX, Linux, OS X, Solaris, Windows

Reference #:


Modified date:


Translate my page

Content navigation