Informix System Hangs

We are running Informix version 7.24.UC5-1 on Solaris 2.6 on a Sun E5000. We are having multiple daily "pauses" of the database, where it seams a single oninit starts sucking up all the CPU time, and nothing else moves. After about a 2 minute period, the system returns back to normal. There is no mention of the pause in the ONLINE.LOG file, and it does not seam to be a checkpoint. Below I posted our ONCONFIG file incase someone sees something wrong. Thanks for any help! -Jason #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig.std # Description: INFORMIX-OnLine Configuration Parameters # #************************************************************************** DD_HASHMAX 61 #This must stay in this file DATA DICTIONARY DD_HASHSIZE 61 #This must stay in this file DATA DICTIONARY #Allows more tables to be active and stops #engine from crashing per informix support # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /dev/rootdbs # Path for device containing root dbspace ROOTOFFSET 4 # Offset of root dbspace into device (Kbytes) ROOTSIZE 100000 # Size of root dbspace (Kbytes) # Disk Mirroring Configuration Parameters MIRROR 1 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH /dev/rtmirror # Path for device containing root dbspace mirro MIRROROFFSET 4 # Offset into mirror device (Kbytes) # Physical Log Configuration PHYSDBS rootdbs # Location (dbspace) of physical log PHYSFILE 30000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 60 # Number of logical log files LOGSIZE 1000 # Logical log size (Kbytes) # Diagnostics MSGPATH /usr/informix/online.log # System message log file path CONSOLE /dev/ttya # System console message path ALARMPROGRAM No_log.sh # Alarm program path # System Archive Tape Device #TAPEDEV /dev/null # Tape device path TAPEDEV /dev/rmt/1c # Tape device path TAPEBLK 16 # Tape block size (Kbytes) TAPESIZE 30000000 # Maximum amount of data to put on tape (Kbytes) # Log Archive Tape Device LTAPEDEV /dev/rmt/0c # Log tape device path LTAPEBLK 16 # Log tape blocksize (Kbytes) LTAPESIZE 8500000 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB ,1 # INFORMIX-OnLine/Optical staging area # System Configuration SERVERNUM 1 # Unique id corresponding to a OnLine instance DBSERVERNAMEtrend_tcp # Name of default database server DBSERVERALIASES trend_shm # List of alternate dbservernames DEADLOCK_TIMEOUT 80 # Max time to wait of lock in distributed env. RESIDENT 0 # Forced residency flag (Yes = 1, No = 0) MULTIPROCESSOR 1 # 0 for single-processor, 1 for multi-processor NUMCPUVPS 7 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit numberof cpu vps to one NOAGE 1 # Process aging AFF_SPROC 0 # Affinity start processor AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 100000 # Maximum number of locks BUFFERS 250000 # Maximum number of shared buffers NUMAIOVPS 2 # Number of IO vps PHYSBUFF 1000 # Physical log buffer size (Kbytes) LOGBUFF 64 # Logical log buffer size (Kbytes)LOGSMAX 60 # Maximum number of logical log files CLEANERS 8 # Number of buffer cleaner processes#SHMBASE 0x0A000000L # Shared memory base address SHMBASE 0xa000000 # Shared memory base address SHMVIRTSIZE 100000 # initial virtual shared memory segment size SHMADD 32000 # Size of new shared memory segments (Kbytes) SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited#CKPTINTVL 3600 # Check point interval (in sec) CKPTINTVL 1200 # Check point interval (in sec) LRUS 8 # Number of LRU queues LRU_MAX_DIRTY 1 # LRU percent dirty begin cleaning limit LRU_MIN_DIRTY 0 # LRU percent dirty end cleaning limit LTXHWM 40 # Long transaction high water mark percentage LTXEHWM 50 # Long transaction high water mark (exclusive) TXTIMEOUT 0x12c # Transaction timeout (in sec) STACKSIZE 32 # Stack size (Kbytes) # System Page Size # BUFFSIZE - OnLine no longer supports this configuration parameter. # To determine the page size used by OnLine on your platform # see the last line of output from the command, 'onstat -b'. # Recovery Variables # OFF_RECVRY_THREADS: # Number of parallel worker threads during fast recovery or an offline restore. # ON_RECVRY_THREADS: # Number of parallel worker threads during an online restore. OFF_RECVRY_THREADS 10 # Default number of offline worker threads ON_RECVRY_THREADS 1 # Default number of online worker threads # Data Replication Variables # DRAUTO: 0 manual, 1 retain type, 2 reverse type DRAUTO 0 # DR automatic switchover DRINTERVAL 30 # DR max time between DR buffer flushes (in sec) DRTIMEOUT 30 # DR network timeout (in sec) DRLOSTFOUND /usr/informix/etc/dr.lostfound # DR lost+found file path # Backup/Restore variables BAR_ACT_LOG /tmp/bar_act.log BAR_MAX_BACKUP 0 BAR_RETRY 1 BAR_NB_XPORT_COUNT 10 BAR_XFER_BUF_SIZE 31 # Read Ahead Variables RA_PAGES # Number of pages to attempt to read ahead RA_THRESHOLD # Number of pages left before next group # DBSPACETEMP: # OnLine equivalent of DBTEMP for SE. This is the list of dbspaces # that the OnLine SQL Engine will use to create temp tables etc. # If specified it must be a colon separated list of dbspaces that exist # when the OnLine system is brought online. If not specified, or if # all dbspaces specified are invalid, various ad hoc queries will create # temporary files in /tmp instead. DBSPACETEMP dbtmp1,dbtmp2offset # Default temp dbspaces # DUMP*: # The following parameters control the type of diagnostics information which # is preserved when an unanticipated error condition (assertion failure) occurs # during OnLine operations. # For DUMPSHMEM, DUMPGCORE and DUMPCORE 1 means Yes, 0 means No. DUMPDIR /tmp # Preserve diagnostics in this directory DUMPSHMEM 0 # Dumpa copy of shared memory DUMPGCORE 0 # Dump a core image using 'gcore' DUMPCORE 0 # Dump a core image (Warning:this aborts OnLine) DUMPCNT 1 #Number of shared memory or gcore dumps for # a single user's session FILLFACTOR 90 # Fill factor for building indexes # method for OnLine to use when determining current time USEOSTIME 0 # 0: use internal time(fast), 1: get time from OS(slow) @@N