Consistency Check Duration

This is a multi-part message in MIME format. --------------7E3C97BE26937EA7EA2233FA Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Hello, When we put a system live about 18 months ago, a full consistency check (oncheck -crceID) took apprx 12 hours. This has increased slowly to 24 hours now. The database is apprx 20GB in terms of allocated dbspace, and the hardware is HP 9000 K420 2 CPU's, 1GB RAM. The disks all reside on fast EMC Symmetrix storage. Does anyone know what would be causing the increase in time taken for the consistency check? There is no-one using the system while the check is going on. Regards, Scott -- Scott Hanson System Support Analyst mailto:shanson@gb.dhl.com aka:sm_hanson@hotmail.com --------------7E3C97BE26937EA7EA2233FA Content-Type: text/plain; charset=us-ascii; name="onconfig" Content-Transfer-Encoding: 7bit Content-Disposition: inline; filename="onconfig" #************************************************************************** # # INFORMIX SOFTWARE, INC. # # Title: onconfig for sis 4.3 Informix Online DSA 7.20 HP-UX 10.10 # lhr machine # Description: INFORMIX-OnLine Configuration Parameters # #************************************************************************** # Root Dbspace Configuration ROOTNAME rootdbs # Root dbspace name ROOTPATH /var/opt/informix/chunks/inf0_1 # Path for device containing root dbspace ROOTOFFSET 0 # Offset of root dbspace into device (Kbytes) ROOTSIZE 100000 # Size of root dbspace (Kbytes) # Disk Mirroring Configuration Parameters MIRROR 0 # Mirroring flag (Yes = 1, No = 0) MIRRORPATH # Path for device containing mirrored root MIRROROFFSET 0 # Offset into mirrored device (Kbytes) # Physical Log Configuration PHYSDBS physlog # Location (dbspace) of physical log PHYSFILE 99894 # Physical log file size (Kbytes) # Logical Log Configuration LOGFILES 18 # Number of logical log files - remove # Note high water marks have changed LOGSIZE 100000 # Logical log size (Kbytes) # Diagnostics MSGPATH /opt/informix/online.log # System message log file path CONSOLE /opt/informix/console.log # System console message path ALARMPROGRAM /opt/informix/shell/log_full.sh # Alarm program path # System Archive Tape Device TAPEDEV /dev/rmt/3m # Tape device path TAPEBLK 32 # Tape block size (Kbytes) TAPESIZE 40000000 # ( 40 Gbyte )Maximum amount of data to put on tape # Log Archive Tape Device LTAPEDEV /dev/rmt/3m # Log tape device path - note that the LTAPEBLK 32 # Log tape block size (Kbytes) LTAPESIZE 40000000 # Max amount of data to put on log tape (Kbytes) # Optical STAGEBLOB # INFORMIX-OnLine/Optical staging area # System Configuration SERVERNUM 1 # Unique id corresponding to a OnLine instance DBSERVERNAME sis_shm # Name of default database server DBSERVERALIASES sis_soc # List of alternate dbservernames DEADLOCK_TIMEOUT 60 # 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 2 # Number of user (cpu) vps SINGLE_CPU_VP 0 # If non-zero, limit number of cpu vps to one NOAGE 1 # Process aging 1=off 0=on AFF_SPROC 0 # Affinity start processor AFF_NPROCS 0 # Affinity number of processors # Shared Memory Parameters LOCKS 100000 # Maximum number of locks BUFFERS 100000 # Maximum number of shared buffers - tune NUMAIOVPS 10 # 5 logical disks Number of IO vps 2 single cpu or 2*chunks PHYSBUFF 512 # Physical log buffer size (Kbytes) LOGBUFF 128 # Logical log buffer size (Kbytes)LOGSMAX 50 # Maximum number of logical log files CLEANERS 8 # Number of buffer cleaner processes # one per disk depends on disk size SHMBASE 0x0 # Shared memory base address SHMVIRTSIZE 72584 # initial virtual shared memory segment size (Kbytes) - tune SHMADD 16384 # Size of new shared memory segments (Kbytes) - tune SHMTOTAL 0 # was 400000 # was 0 Total shared memory (Kbytes). 0=>unlimited CKPTINTVL 150 # Check point interval (in sec) LRUS 8 # Number of LRU queues LRU_MAX_DIRTY 10 # was 15 # was 60 # DHL Systems update LRU percent dirty begin cleaning LRU_MIN_DIRTY 5 #was 50 # DHL Systems update LRU percent dirty end cleaning limit# These are the values recommended by DHL Systems from Informix V7.2 best # demonstrated practices page 12. LTXHWM 45 # Long transaction high water mark percentage LTXEHWM 47 # 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 5 # 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 /opt/informix/etc/dr.lostfound # DR lost+found file path # Backup/Restore variables # Read Ahead Variables RA_PAGES 40 # Number of pages to attempt to read ahead RA_THRESHOLD 20 # 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. # Note that the temp