Re: Cannot start 2 instances of OnLine 7.x

Check the chunks/dbspaces on the development instance, and make sure that they are consistent. Do an oncheck -pr on the development instance. The engine need not be up for this process. Seems like your chunks have been marked inconsistent. I've had the same problem before and Informix had to dial in and reset the chunks If your dbspaces are not mirrored, the flags for them should be 1 ( 2000 for tempdbs ), or 2 if mirrored. If the flags is 4, then it means that the dbspace is down. Also, the chunk status should be 40 ( for online ) Such a situation may have been the result of an incorrect restore. Sujata ______________________________ Reply Separator _________________________________ Subject: Cannot start 2 instances of OnLine 7.x Author: "Erik A. Widholm" <ewidholm@moody.edu> at internet Date: 10/8/97 1:34 PM Until recently, we ran our test database on OL 7.x and our production database on OL 5.x with no memory conflicts. Then I upgraded the 5.x to 7.x (dbexport, dbimport, etc.), and got it running. During the upgrade, I did not have the 7.x engine running, but I did have a level 0 archive of it that had been successfully restored a couple of times. Now that my production database is up, I cannot get my test engine to come up. When I do an 'oninit', it returns to the command prompt OK, but within seconds states: oninit: Fatal error in shared memory initialization The log file contains: Wed Oct 8 13:15:45 1997 13:15:45 DR: DRAUTO is 0 (OFF) 13:15:47 INFORMIX-OnLine Initialized -- Shared Memory Initialized. 13:15:47 Physical Recovery Started. 13:15:47 Physical Recovery Complete: 0 Pages Restored. 13:15:47 Logical Recover Started. 13:15:50 Logical Recovery Copmplete. 0 Committed, - Rolled Back, - Open, - Bad Locks 13:15:50 INFORMIX-OnLine Stopped. 13:15:50 mt_shm_remove: WARNING: may not have removed all/correctsegments Furthermore, onstat -g seg for the production engine shows: Segment Summary: (resident segments are locked) id key addr size ovhd class blkused blkfree 214 1385973763 c9eeb000 2744320 648 M 332 3 808 1385973761 c7f61000 41410560 1484 R 5051 4 609 1385973762 ca6df000 67108864 1628 V 5813 2379 Our system has 512MB of ram, of which a minimum of 120MB has been free when I've tried to start the second engine. Any hints on running two engines simultaneously would be much appreciated!