Oracle 8i on IBM Netfinity Servers

Hi there!
Anyone can share an experience installing Oracle 8i under Red Hat Linux on IBM Netfinity servers? Did you needed to patch the kernel, tunnung SGA, etc? What were the maximum parameters you were able to set for Oracle and the linux kernel? MTS worked well?
I am having trouble configuring more than a few MB for the SGA, and I really need it. My database has ver big batch processes and thousand of on-line users. We are worried we had chooses the wrong hardware or OS for our database.
null

Could you please tell me about your configuration? We have a NetFinity 7000-86801SY with 4Gb RAM. When we apply patchs for the Linux kernel so it supports more RAM I cannot start Oracle.
Besides when we use standard RHL 6.1 kernel, maing the SGA bigger (about 300Mb) the instance runs without errors but incredbly slow and eating up all CPU.
null

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