Linux operating systems

Suggested settings for kernel parameters on Linux

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Ensure that the values for kernel parameters are sufficient to prevent operational problems from occurring when you run the IBM Storage Protect server.

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The following table contains descriptions of the kernel parameters to run both IBM Storage Protect and IBM Db2.

Kernel parameter optimal settings
Parameter Description
kernel.randomize_va_space The kernel.randomize_va_space parameter configures the use of memory ASLR for the kernel. Disable ASLR because it can cause errors for the Db2 software. To learn more details about the Linux® ASLR and Db2, see the technote at: technote 384757.
vm.swappiness The vm.swappiness parameter defines whether the kernel can swap application memory out of physical random access memory (RAM). For more information about kernel parameters, see the Db2® product information.
vm.overcommit_memory The vm.overcommit_memory parameter influences how much virtual memory the kernel can permit be allocated. For more information about kernel parameters, see the Db2 product information.