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Beatnik (493)

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A 29 year old belgian who likes Mountain Dew, Girl Scout Cookies, Tim Hortons French Vanilla Flavoured Cappucinno, Belgian beer, Belgian chocolate, Belgian women, Magners Cider, chocolate chipped cookies and Perl. Likes snowboarding, snorkling, sailing and silence. Bach can really cheer him up! He still misses his dog.

Project Daddy of Spine [], a mod_perl based CMS.

In his superhero time (8.30 AM to 5.30 PM), he works on world peace.

Journal of Beatnik (493)

Wednesday August 24, 2005
06:09 PM

Sybase Notes

[ #26454 ]
Sybase on Linux needs different shared memory parameters..Define before installing:

sysctl -w kernel.shmmax=67108864

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  • Don't forget to put that into /etc/sysctl.conf or it'll stop working on the next reboot. Which is probably in 6 months time when the command has disappeared from you bash_history. :-)


  • Freebie from our operations wiki, if you're gonna do that on Solaris:

    Check available memory (physical) on the server

    # /usr/platform/sun4u/sbin/prtdiag -v | grep "Memory size"
    Memory size: 5120MB

    We make a decision to dedicate dedicate 4000MB for Sybase ASE and leave some 1GB plus for the OS for now. Next, we caluculate what will go in to the /etc/system file to be applied to the kernel at boot time 4000 * 1024 * 1024 = 4194304000 bytes. Next, we add this to the /etc/system file:

    # vi /etc/system
    set shmsys:s