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Lower Zone Protection on EL4/5 (Doc ID 842886.1)

Last updated on JULY 12, 2019

Applies to:

Linux OS - Version 2.6 and later
Linux x86-64
Linux x86
Linux Kernel - Version: 2.6


This note introduces the lower zone protection in the virtual memory management system on Enterprise Linux 4/5. This note could be used as a reference for system administrator to configure the lower zone protection feature when dealing with LowMem issues.


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In this Document
 How to configure vm.lower_zone_protecion
 lower_zone_protection for Hugemem kernel
 lower_zone_protecton on x86_64
 lower_zone_protection on RHEL5/EL5

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