RE: Kernel parameters

From: Rajesh Dayal <Rajesh_at_ohitelecom.com>
Date: Wed, 07 May 2003 03:56:55 -0800
Message-ID: <F001.005920DB.20030507035655@fatcity.com>

Hi Jack,

        GH_CHUNKS is basically a parameter which asks system to reserve the System Memory for the usage of shared memory. This memory is allocated at boot time and cannot be used back by operating system for any other usage. So if you have a system having 3 Gb of RAM and you have nothing running on the system other than Oracle Databases, then it is safe to reserve upto 2 Gb of memory for shared memory. So you can put a value of

gh_chunks = 512

GH_CHUNKS is allocated in the number of 4Mb chunks so 512*4Mb=2Gb.

So your gh_chunks value will depend on your system RAM.

HTH,
Rajesh

PS: Let me know what other parameters you are looking at.

-----Original Message-----
Sent: Monday, May 05, 2003 7:07 AM
To: Multiple recipients of list ORACLE-L

Hi List,

Can somebody give me an example of the kernel settings for TRU64 (preferably) for about 6 instances each with a total sga of 160MB (currently projected) running Oracle 9i (4x) and 8i (2x) The documentation only pre-install settings for 1 instance. Furthermore something about GH CHUNKS

TIA Jack
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Author: Jack van Zanen
  INET: JACK_at_QUANTSYSTEMS.NL

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Author: Boivin, Patrice J
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Author: Rajesh Dayal
  INET: Rajesh_at_ohitelecom.com

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To REMOVE yourself from this mailing list, send an E-Mail message to: ListGuru_at_fatcity.com (note EXACT spelling of 'ListGuru') and in the message BODY, include a line containing: UNSUB ORACLE-L (or the name of mailing list you want to be removed from). You may also send the HELP command for other information (like subscribing). Received on Wed May 07 2003 - 06:56:55 CDT