onconfig recommendations

Would like to receive some feedback on our onconfig setup for current platform. This is the 3rd physical server that the database has moved to and just want to ensure we are using the best settings for given platform. Current Server: HP rp5405 4-Way (650 MHz) with 8GB RAM. 1 73GB hard drive (4 drives installed, but sysadmin took 2 for O/S, system and other 2 are mirrored pair so effectively 1 spindle to work with). I didn't get to specify the configuration. Old Server: HP something 4 way with 4GB RAM. 5 spindles to work with. When moved to current server, I did up the buffers and locks. We use ontape for Level 0 and logical log backups. They are done via files and links to remote server instead of actual tape. System is primarily OLTP with some batch jobs run overnight (off business hours). Any insight will be appreciated. Please let me know if you would like any other information. TIA, Randy # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /db/links/rootdbs # Path for device containing rootdbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 384000 # Size of root dbspace (Kbytes) # Disk Mirroring Configuration Parameters MIRROR 0 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH # Path for device containing mirroredroot MIRROROFFSET 0 # Offset into mirrored device (Kbytes) # Physical Log Configuration PHYSDBS rootdbs # Location (dbspace) of physical log PHYSFILE 60000 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 85 # Number of logical log files LOGSIZE 12000 # Logical log size (Kbytes) LOG_BACKUP_MODE CONT # Diagnostics MSGPATH /i9.4/informix/online.log # System message log file path CONSOLE /dev/console # System console message path ALARMPROGRAM /db/scripts/no_log.sh # Alarm program path # System Archive Tape Device #TAPEDEV /dev/rmt/2m # Tape device path TAPEDEV /remote/recovery/informix/level0 # 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/2m # Log tape device path LTAPEDEV /ltape1/informix/log1 # Log tape device path LTAPEBLK 16 # Log tape block size (Kbytes) LTAPESIZE 4500000 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # INFORMIX-OnLine/Optical staging area # System Configuration SERVERNUM 0 # Unique id corresponding to a OnLineinstance DBSERVERNAME courtshm # Name of default database server DBSERVERALIASES # List of alternate dbservernames DEADLOCK_TIMEOUT 60 # Max time to wait of lock indistributed env. RESIDENT 0 # Forced residency flag (Yes = 1, No = 0) NETTYPE soctcp,4,150,NET NETTYPE ipcshm,1,25,NET MULTIPROCESSOR 1 # 0 for single-processor, 1 formulti-processor NUMCPUVPS 16 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vpsto one NOAGE 1 # Process aging AFF_SPROC 0 # Affinity start processor AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 80000 # Maximum number of locks BUFFERS 150000 # Maximum number of shared buffers NUMAIOVPS 26 # Number of IO vps PHYSBUFF 64 # Physical log buffer size (Kbytes) LOGBUFF 32 # Logical log buffer size (Kbytes) CLEANERS 28 # Number of buffer cleaner processes SHMBASE 0x0 # Shared memory base address SHMVIRTSIZE 160000 # initial virtual shared memory segmentsize SHMADD 80000 # Size of new shared memory segments (Kbytes) SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 300 # Check point interval (in sec) LRUS 20 # Number of LRU queues LRU_MAX_DIRTY 5.000000 # LRU percent dirty begin cleaning limit LRU_MIN_DIRTY 2.000000 # LRU percent dirty end cleaning limit LTXHWM 50 # Long transaction high water markpercentage LTXEHWM 60 # Long transaction high water mark (exclusive) TXTIMEOUT 0x12c # Transaction timeout (in sec) STACKSIZE 64 # Stack size (Kbytes) PC_POOLSIZE 110 # Stored Procedures Cache # 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 15 # Default number of offline workerthreads ON_RECVRY_THREADS 15 # Default number of online workerthreads # Data Replication Variables # DRAUTO: 0 manual, 1 retain type, 2 reverse type 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 # Read Ahead Variables RA_PAGES 64 # Number of pages to attempt to readahead RA_THRESHOLD 8 # 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 tempdbs1,tempdbs2,tempdbs3,tempdbs4 # 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 # Dump a 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 dumpsfor # a single user's session # ADT* # The following parameters c