Hot to initialize shared memory on Informix 7.31

Hi, I would like to knwo how I must set the parameters in Informix 7.31. On my log file appears the message: 08:56:25 Dynamically allocated new message shared memory segment (size 352KB) 08:56:25 Requested shared memory segment size rounded from 344KB to 352KB 08:56:25 Requested shared memory segment size rounded from 344KB to 352KB For more information my /ets/system file is: informix@BO:/$ more /etc/system *ident "@(#)system 1.18 97/06/27 SMI" /* SVR4 1.5 */ * * SYSTEM SPECIFICATION FILE * * moddir: * * Set the search path for modules. This has a format similar to the * csh path variable. If the module isn't found in the first directory * it tries the second and so on. The default is /kernel /usr/kernel * * Example: * moddir: /kernel /usr/kernel /other/modules * root device and root filesystem configuration: * * The following may be used to override the defaults provided by * the boot program: * * rootfs: Set the filesystem type of the root. * * rootdev: Set the root device. This should be a fully * expanded physical pathname. The default is the * physical pathname of the device where the boot * program resides. The physical pathname is * highly platform and configuration dependent. * * Example: * rootfs:ufs * rootdev:/sbus@1,f8000000/esp@0,800000/sd@3,0:a * * (Swap device configuration should be specified in /etc/vfstab.) * exclude: * * Modules appearing in the moddir path which are NOT to be loaded, * even if referenced. Note that `exclude' accepts either a module name, * or a filename which includes the directory. * * Examples: * exclude: win * exclude: sys/shmsys * forceload: * * Cause these modules to be loaded at boot time, (just before mounting * the root filesystem) rather than at first reference. Note that * forceload expects a filename which includes the directory. Also * note that loading a module does not necessarily imply that it will * be installed. * * Example: * forceload: drv/foo * set: * * Set an integer variable in the kernel or a module to a new value. * This facility should be used with caution. See system(4). * * Examples: * * To set variables in 'unix': * * set nautopush=32 * set maxusers=40 * * To set a variable named 'debug' in the module named 'test_module' * * set test_module:debug = 0x13 set shmsys:shminfo_shmmax=256000000 set shmsys:shminfo_shmmin=100 set shmsys:shminfo_shmmni=100 set shmsys:shminfo_shmseg=100 set semsys:seminfo_semmap=64 set semsys:seminfo_semmni=4096 set semsys:seminfo_semmns=4096 set semsys:seminfo_semmnu=4096 set semsys:seminfo_semume=64 set semsys:seminfo_semmsl=512 set msgsys:msginfo_msgmni=2048 #set semsys:seminfo_semmap=50 #set semsys:seminfo_semmni=2000 #set semsys:seminfo_semmns=2000 #set semsys:seminfo_semmnu=500 #set semsys:seminfo_semmsl=512 set semsys:seminfo_semopm=256 #set semsys:seminfo_semume=500 set semsys:seminfo_semvmx=32767 set semsys:seminfo_semaem=16384 #set shmsys:shminfo_shmmax=20971520 #set shmsys:shminfo_shmmin=0 #set shmsys:shminfo_shmmni=2000 #set shmsys:shminfo_shmseg=100 #set msgsys:msginfo_msgmni=2048 set max_nprocs=1000 set fnsod:sod_Debug=0 set rlim_fd_max=1024 set rlim_fd_cur=256 * vxvm_START (do not remove) forceload: drv/vxdmp forceload: drv/vxio forceload: drv/vxspec forceload: drv/dad forceload: drv/pcipsy forceload: drv/sd forceload: drv/ssd rootdev:/pseudo/vxio@0:0 set vxio:vol_rootdev_is_volume=1 */dev/console 0666 /dev/console * vxvm_END (do not remove) Any idea of how to configure that parameters? Thank you. Alan