RE: Informix 7.30 (I know!)

If you are logging (and of course you are, 'cause it's production) and you don't have raw tables or blobs, then try this. 1. Old Box - back up logical logs continuously 2. Old Box - while On-line, level 0 archive 3. New Box - restore level 0 archive 4. New Box - answer 'N' to level 1 restore 5. Old Box - Stop logging - switch tapes and restart logging 6. New Box - answer 'Y' to log restore. 7. New Box - use the first log tape and apply logs 8. Do Steps 5-7 until you are ready to switch over to New Box Then get it down to only 5 minutes from the last log restore, this will make your last log restore very small and the switchover should be a very small downtime. One more tip do not have (m)any open transactions at the point of switchover. HTH, Zev Berezin -----Original Message----- From: informix-list-bounces@iiug.org [mailto:informix-list-bounces@iiug.org] On Behalf Of navdeep virk Sent: Tuesday, May 29, 2007 12:59 PM To: art.kagel@gmail.com; informix-list@iiug.org Subject: Informix 7.30 (I know!) We have a need to migrate the database from a running Production server on to a Pre Production machine which will eventually replace the Production Machine. This is a Transaction Processing system so we want the migration to happen without any downtime. We plan to take level "0" back from the Old box , restore to the new box and then apply the delta using scripts( Unload /load) to bring the data in sync. Is there a way by which after we have taken a level "0" backup , we can then take another backup of whatever changed after level "0" and apply that to database using some informix utility.I am not sure if a Level "1" will do the job as while the Level "1" is being restored we will have a down time. NSV _______________________________________________ Informix-list mailing list Informix-list@iiug.org http://www.iiug.org/mailman/listinfo/informix-list