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тАО04-13-2003 07:14 AM
тАО04-13-2003 07:14 AM
memory and Informix Online 7.10ud3
I have a RP8400 with hp-ux 11i and 8Go of memory.
I can run informix Online 7.10 with only 700Mo of memory not more why?
what parameters in the kernel can i change for this?
thanks for all.
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тАО04-13-2003 07:41 AM
тАО04-13-2003 07:41 AM
Re: memory and Informix Online 7.10ud3
I'd imagine you are talking about the shared memory segment size. You will need to increase "shmmax" if that is the case.
For the tunable parameter reference for 11i see here:
http://www.docs.hp.com/hpux/onlinedocs/TKP-90202/TKP-90202.html
Regards,
James.
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тАО04-13-2003 02:19 PM
тАО04-13-2003 02:19 PM
Re: memory and Informix Online 7.10ud3
Beyond about 900 megs (shared or local memory), you'll need to relink the application to take advantage of two-quadrant addressing to go up to 1750 megs. NOTE: shared memory is limited because other applciations also use that memory for shared librares, memory mapped files and other shared memory segments. To guarentee up to 1750 megs of RAM, you'll need to use memory windows.
Bill Hassell, sysadmin
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тАО04-13-2003 05:19 PM
тАО04-13-2003 05:19 PM
Re: memory and Informix Online 7.10ud3
Thanks
Zafar
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тАО04-14-2003 06:41 AM
тАО04-14-2003 06:41 AM
Re: memory and Informix Online 7.10ud3
I use 1Go for Maxdsiz and shmmax but nothing.
can i use memory windows with Informix Online 7.10ud3?
thanks
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тАО04-14-2003 02:25 PM
тАО04-14-2003 02:25 PM
Re: memory and Informix Online 7.10ud3
Bill Hassell, sysadmin
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тАО04-14-2003 02:49 PM
тАО04-14-2003 02:49 PM
Re: memory and Informix Online 7.10ud3
Informix can handle without any problem more than 2GB shared memory even on Informix 32-bit. We used to run XPS-32 bit with 2.1GB Shared Memory and when we moved to XPS 64-bit we increased to 4GB shared memory. But you should have enough RAM to hold other Unix processes.
To better optimize Informix instance, I will first check how many concurrent users and buffers, logical logs etc. from database; because simply adding more memory doesn't solve always all the problems.
Thanks
Zafar