The deduplication of backups can save significant amounts of storage space. The default backup format for IBM© Informix©, however, does not result in efficient deduplication. Therefore, if your storage manager is enabled for data deduplication, use the new IFX_BAR_USE_DEDUP environment variable to make backup operations more efficient. This environment variable optimizes the format of backup images for deduplication processes.
The IFX_BAR_USE_DEDUP environment variable is available in Informix 11.70.xC8 and 12.10.xC2.