Requirements for a Logical-Log Backup (ON-Archive)
Purpose
To back up the logical log of an Informix database with
ON-Archive , you have to meet certain requirements.Prerequisites
You have decided on an
approach to logical-log backup with ON-Archive . This determines your requirements to some extent. For example, if you decide to use a disk staging area with continuous backup, you must have the required disk space available.Process Flow

If your logical log is completely full, see
Result
You have met the requirements for performing logical-log backups with
ON-Archive . For more information about creating a logical-log backup, see Creation of a Logical-Log Backup (ON-Archive).
See also:
Informix documentation at
http://www.informix.com