How Linux Memory Hotplug Adds RAM While Running
transcript
show notes
Memory hotplug lets you add or remove RAM from a running Linux system without a reboot. It’s a niche but powerful capability used in cloud fleets, big databases, and high-availability setups. Lucas and Luna dig into the mechanism — from sysfs entries to the kernel’s memory block layer — and walk through a real-world example of resizing a VM’s memory on the fly. They also touch on the risks, the hardware requirements, and why most desktop users will never need it. If you’ve ever wondered how cloud providers seem to resize instances without downtime, this episode explains the trick.
#LinuxMemoryHotplug #RAMHotplug #LinuxKernel #MemoryManagement #CloudInfrastructure #VirtualMachines #Sysadmin #OpenSource #LinuxServer #HighAvailability #MemoryBlocks #Sysfs #Technology #LinuxPodcast #FexingoBusiness #BusinessPodcast #DevOps #InfrastructureAsCode