Re: Ontape -r

Nigel Gall wrote: > > This brings me to another question. Why does the restore process require > the lgoical logs to complete the restore process? Let me explain by giving > an example. > > I did an ontape -r warm restore recently (after completing Y2K testing) and > when I responded No to the logical log restore question, it ended the > restore session stating that the restore was incomplete and left my chunks > in an offline status. What I wanted to do was just restore to the point of > the level-0 archive. Eventually I put in the tape for the logs and > completed the restore. > > I suppose the detailed reasoning is in some chapter in the manual (so I'll > be re-reading it). Just looking for a short answer off the topp of your > experienced heads. You require the logs for a warm restore but not for a cold restore. That is because a warm restore is adding data to an existing, running set of data. This newly restored dbspace cannot be left in a different timezone to the other dbspaces. That is, you cannot have a bunch of dbspaces current up to Thu and expect to restore a dbspace as it was on Tue. So the logs are required to bring the dbspace up to Thu. I hope that makes sense, but you did say 'short answer off the top of your head'. Oh! You said 'experienced head', then ignore all I said. :-) Cheers, -- Mark. +----------------------------------------------------------+-----------+ | Mark D. Stock mailto:mdstock@mydas.freeserve.co.uk |//////// /| | http://www.informix.com http://www.informixhandbook.com |///// / //| | http://www.iiug.org +-----------------------------------+//// / ///| | |What year 2000 bug? year 2000 bug? |/// / ////| | |year 2000 bug? year 2000 bug? year |// / /////| | |2000 bug? year 2000 bug? year 1900 |/ ////////| +----------------------+-----------------------------------+-----------+