Engine's re-setting
Posted in 2003
Topics: Installation, Setup & Upgrades, Server Administration, Platform-Specific Issues
Hi everyone! I wish to listen some advice about the engine re-setting (whether it is aplicable), because at this time we should add a processor and more memory to the server. Current Setting: Server : Sun Enterprise 450 - UltraSparc 300 Mhz Processor - 512 Mb of Memory OS: Solaris 5.7 Informix Version: Informix Dynamic Server Version 7.31.UC2A Upgrade: 1 Processor additional and 512 Mb additional Memory. Subject point to know whether we should adapt the engine's parameters , p.e. OnConfig, to teke adventage of the server's new capabilitys Thanks in advance
Hi, dsolalinde,
You must to change the relative to the point in server you updated. The
BUFFERS parameter can be bigger than before. I dont know how much BUFFERS
you have but you can increment more memory to this parameter. Did it based
in the LRU size, and its near to BUFFERS / LRUS. Try to make the LRU size
the same as before. You still can make bigger the Virtual Portion Memory
(SHMVIRTSIZE parameter).
About processores, you must to see the number of physical processor and
change some parameters:
MULTIPROCESSOR <set it to 1>NUMCPUVPS <set it to number of physical processor - 1>
( -1 because Informix recomend that you set it to value that leave one
processor for OS )
SINGLE_CPU_VP <set it to 0 (zero)>Maybe I could help you better that it, if I saw the onconfig file. Try to
send if its was not enogh.
Best regards
>From: "SOLALINDE D...." <dsolalinde@aguasdeformosa.com.ar>
>To: ids@iiug.org
>Subject: Engine's re-setting [2121] Date: Mon, 3 Nov 2003 16:20:44 -0500
>(EST)
>
>Hi everyone!
>I wish to listen some advice about the engine re-setting (whether it is
>aplicable), because at this time we should add a processor and more memory
>to the server.
>
>Current Setting:
>Server : Sun Enterprise 450 - UltraSparc 300 Mhz Processor - 512 Mb of
>Memory
>OS: Solaris 5.7
>Informix Version: Informix Dynamic Server Version 7.31.UC2A
>
>Upgrade:
>1 Processor additional and 512 Mb additional Memory.
>
>Subject point to know whether we should adapt the engine's parameters ,
>p.e. OnConfig, to teke adventage of the server's new capabilitys
>
>Thanks in advance
>
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Thanks
to everyone, I send the onconfig file's portion about the
memory and processores:
about the processor:
MULTIPROCESSOR 0 # 0 for single-processor, 1 formulti-processor
NUMCPUVPS 1 # Number of user (cpu) vps
SINGLE_CPU_VP 1 # If non-zero, limit number of cpu vpsto one
NOAGE 0 # Process aging
AFF_SPROC 0 # Affinity start processor
AFF_NPROCS 0 # Affinity number of processors
about de Shared Memory Parameters:
LOCKS 90000 # Maximum number of locks
BUFFERS 29999 # Maximum number of shared buffers
NUMAIOVPS 5 # Number of IO vps
PHYSBUFF 128 # Physical log buffer size (Kbytes)
LOGBUFF 32 # Logical log buffer size (Kbytes)LOGSMAX 10 # Maximum number of logical log files
CLEANERS 30 # Number of buffer cleaner processes
SHMBASE 0xa000000 # Shared memory base address
SHMVIRTSIZE 65536 # initial virtual shared memory segment size
SHMADD 49152 # Size of new shared memory segments
(Kbytes)
SHMTOTAL 0 # Total shared memory (Kbytes). 0=>unlimited
CKPTINTVL 300 # Check point interval (in sec)
LRUS 30 # Number of LRU queues
LRU_MAX_DIRTY 10 # LRU percent dirty begin cleaning limit
LRU_MIN_DIRTY 5 # 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 32 # Stack size (Kbytes)
Sounds like a good idea..especially if the box is just a database server. Depends on your current ONCONFIG, though. -----Original Message----- From: SOLALINDE D.... [mailto:dsolalinde@aguasdeformosa.com.ar] Sent: Monday, November 03, 2003 4:21 PM To: ids@iiug.org Subject: Engine's re-setting [2121] Hi everyone! I wish to listen some advice about the engine re-setting (whether it is aplicable), because at this time we should add a processor and more memory to the server. Current Setting: Server : Sun Enterprise 450 - UltraSparc 300 Mhz Processor - 512 Mb of Memory OS: Solaris 5.7 Informix Version: Informix Dynamic Server Version 7.31.UC2A Upgrade: 1 Processor additional and 512 Mb additional Memory. Subject point to know whether we should adapt the engine's parameters , p.e. OnConfig, to teke adventage of the server's new capabilitys Thanks in advance "CONFIDENTIALITY NOTICE: This message originates from WHSmith USA Travel Retail. This email message and all attachments may contain legally privileged and confidential information intended solely for the use of the addressee. If you are not the intended recipient, you should immediately stop reading this message and delete it from the system. Any unauthorized reading, distribution, copying, or other use of this message or its attachments is strictly prohibited. All personal messages express solely the sender's views and not those of WHSmith USA Travel Retail. This message may not be copied or distributed without this disclaimer."