Re: I/O Bad request chunk 3999 Informix 5.0

In article <4oo0dt$3on@sjx-ixn5.ix.netcom.com>, proussel@ix.netcom.com (Pierre Roussel) says: > > >Got the following failure message and try to understand the problem. >The solution given by Informix did not work (unload tables, drop and >recreate database then reload the data). Problem recurred immediatly >after recreating the database. > >Platform: UNIX SCO 3.2v4.2 >Informix engine: Online SQL 5.00 >Engine configured with 2 chunks and transaction logging > >First clue: any attempt to backup (tbtape) aborts with the message >"Program cancelled". > >Second clue: the Informix engine log show the following error messages > Checkpoint completed > I/O bad request chunk 3999, pagenum 687799, pagecnt 1 > Level 0 Archive cancelled > >Third clue: when attempting to use the "tbtape -s" again, got a >"Segmentation Violation". Multiple message with "Process Aborted >Abnormally " showing in the Informix log. > >Fourth clue: The Informix log reports "Pages failing consistency >check". > >THE SYSTEM IS UP BUT IT IS IMPOSSIBLE TO BACKUP THE INFORMATION > >Where is the chunk 3999 reference coming from? The Informix Support >solution did not work, is there an answer other than re-initializing >the Online Engine? > > >Is there a good soul out there who knows what to do? > Pierre Have you checked that you have the right port for the operating system which you are running Check this with Informix directly first. Could you also post the tape parameters which you set up in the OnLine engine so that these can be checked Chrs Terry