Help, I may be losing my mind ( Shared memory )

I think I'm going crazy. I changed the SHMVIRTSIZE, LOCKS AND BUFFERS to take advantage of some new memory. Today, after reboot, I get these numbers and they make zero sense to me. 1) Why is my first virtual segment 4.2 G , when I have it configured to be 3.1G. 2) Why does the online log say it allocated a new virtual segment of 2.1G right after reboot -- Why is that new segment 2.1G, when I have SHMADD set for .5G. 3) Why does my resident segment EXACTLY match my Virtual segment ? These things make no sense to me the way I understand the way it's supposed to work. What am I missing. Thanks. Floyd onstat -c|grep SHMSHMBASE 0x700000010000000 # Shared memory base address SHMVIRTSIZE 3145728 # initial virtual shared memory segment size SHMADD 524288 # Size of new shared memory segments (Kbytes) SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited# For DUMPSHMEM, DUMPGCORE and DUMPCORE 1 means Yes, 0 means No. DUMPSHMEM 0 # Dump a copy of shared memory DD_HASHMAX 509 [root@stella] Cur Dir ==> /u/floydw/working #onstat -g seg IBM Informix Dynamic Server Version 9.40.FC3 -- On-Line -- Up 01:15:46 -- 10579088 Kbytes Segment Summary: id key addr size ovhd class blkused blkfree 6 1381451777 700000010000000 4294950912 549760 R 1048571 1 7 1381451778 700000110000000 4294950912 131728 V 1048527 45 8 1381451779 700000210000000 2242396160 69088 V 66964 480496 9 1381451780 7000002a0000000 688128 680 M 135 33 Total: - - 10832986112 - - 2164197 480575 04:34:18 IBM Informix Dynamic Server Started. 04:34:25 Requested shared memory segment size rounded from 2189832KB to 2189840KB 04:34:25 Dynamically allocated new virtual shared memory segment (size 2189840KB) 04:34:25 VP pid=139618 priority fixed at 60, former = 92 Mon Aug 21 04:34:26 2006 04:34:26 Event alarms enabled. ALARMPROG = '/usr/online9.40.FC3/etc/alarmprogram.sh' 04:34:26 Booting Language <c> from module <> 04:34:26 Loading Module <CNULL> 04:34:26 Booting Language <builtin> from module <> 04:34:26 Loading Module <BUILTINNULL> 04:34:26 VP pid=78828 priority fixed at 60, former = 60 04:34:26 VP pid=41660 priority fixed at 60, former = 60 04:34:26 VP pid=102520 priority fixed at 60, former = 60 04:34:26 VP pid=74652 priority fixed at 60, former = 60 04:34:27 VP pid=172356 priority fixed at 60, former = 60 04:34:27 VP pid=98402 priority fixed at 60, former = 60 04:34:31 AIX MP latch code enabled 04:34:31 Dynamically allocated new message shared memory segment (size 672KB) 04:34:31 IBM Informix Dynamic Server Version 9.40.FC3 Software Serial Number AAA#B000000 04:34:35 IBM Informix Dynamic Server Initialized -- Shared Memory Initialized. 04:34:35 Physical Recovery Started at Page (224:40479). 04:34:35 Physical Recovery Complete: 0 Pages Examined, 0 Pages Restored. 04:34:35 Logical Recovery Started. 04:34:35 10 recovery worker threads will be started. 04:34:39 Logical Recovery has reached the transaction cleanup phase. 04:34:39 Logical Recovery Complete. 0 Committed, 0 Rolled Back, 0 Open, 0 Bad Locks 04:34:40 Onconfig parameter LOCKS modified from 12000 to 100000. 04:34:40 Onconfig parameter BUFFERS modified from 888000 to 1776000. 04:34:40 Onconfig parameter NUMCPUVPS modified from 4 to 7. 04:34:40 Onconfig parameter SHMVIRTSIZE modified from 2621440 to 3145728. 04:34:40 Dataskip is now OFF for all dbspaces 04:34:43 TrapError set, errno = 25594, session_id = -1 04:34:43 Checkpoint Completed: duration was 0 seconds. 04:34:43 Checkpoint loguniq 80675, logpos 0x24d018, timestamp: 1724409503 (* segment locked in memory) ======================== -<<Floyd Wellershaus>>- Database Administrator Unix Administrator email: fwellers@yahoo.com Home: 703-430-0805 Cell: 703-477-6045 ======================== http://www.one.org/