HPF is it really faster than a simple unload/load

Hi, I have some big tables with over 1M records and some with 15M with some indexes. I would like to know if it is really faster to use HPF instead of load/unload, I saw in informix guide that it's a lot of configuration to use HPF, but if it's worth it! Actually, I am not the DBA, but want to know because the DBA is not interested in using HPF but I really need a faster way to load the data. By the way, if you can tell me the difference in speed between the "deluxe" and "express" mode. I am more intersted in the "deluxe" mode because I saw in the manual that we must take a level 0 to reset a readonly flag. Most of the time (not to say all) we need to load the data when the system is online because 24x7. The other point of interest, what about the checkpoint time during the load with HPF ??? Actually we have dynamic server 7.3 and no logging, dirty read. Thanks for your help!!! please reply + cc:donald.leclerc@domtar.com Donald Leclerc dl@novertech.com donald.leclerc@domtar.com