How to enable Hot-add Memory in Linux RHEL 5 ?
What if you have Hot-added memory in your RHEL 5 server but it's still displaying Last memory configuration ? Step : 1. Check if two modules are loaded properly by, #lsmod | grep acpi acpiphp 43673 0 acpi_memhotplug 42199 0 If not loaded, follow below steps; #modprobe acpiphp #modprobe acpi_memhotplug 2. Now increase your server memory with Hot-add memory module. This will be done by Hardware engineer directly on the server, i am not talking about on OS level. 3. Make a shell script like "memory_online.sh" with below contents, "for a in /sys/devices/system/memory/memory*/state; do echo 'online' > "$a" done" and ...