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тАО10-25-2002 04:49 AM
тАО10-25-2002 04:49 AM
Increase shared memory for HP/UX 11i/Sybase 12.0.x 32bit
Is there a way increase the maximum addressable shared memory for HP/UX 11i and SYBASE release 12.0.x (32 bit) from limitation of 1.75 GB?
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тАО10-25-2002 05:50 AM
тАО10-25-2002 05:50 AM
Re: Increase shared memory for HP/UX 11i/Sybase 12.0.x 32bit
Note that shared memory is a shared resource. Other processes can render this area heavily fragmented thus preventing a large segment from being located, even though the total is much larger than needed. This is a limitation for 32bit processes regardless of the kernel 'bitness'. When you need gigabytes of shared memory, the process must be recompiled into 64bits or you'll spend a lot of time trying to get things to fit.
A helpful program is shminfo which maps the shared memory area. Get a copy from:
ftp://contrib:9unsupp8@hprc.external.hp.com/sysadmin/programs/shminfo/
Note that you'll have to fix IE on PC's to turn off icon view in ftp (a well known bug). Opera and Netscape have no problems, and you can use plain ftp to get to this server.
Bill Hassell, sysadmin
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тАО10-30-2002 02:03 AM
тАО10-30-2002 02:03 AM
Re: Increase shared memory for HP/UX 11i/Sybase 12.0.x 32bit
Rgds
Johan
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тАО10-31-2002 12:34 AM
тАО10-31-2002 12:34 AM
Re: Increase shared memory for HP/UX 11i/Sybase 12.0.x 32bit
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тАО11-14-2002 06:42 AM
тАО11-14-2002 06:42 AM
Re: Increase shared memory for HP/UX 11i/Sybase 12.0.x 32bit
That's very interesting - we currently have total memory set at 600meg. Any higher the application on the server will not run.
We are running Sybase ASE12.0 - 32bit mode.
Are you running 32bit or 64bit release of Sybase 12.0?
Mike Marsh