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Josh RoweFlag for Australia

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vMWare Memory increasing

Maybe a silly question, but I want to know why I cannot add memory to a VM while it's on. Currently we need to turn the machine off and then we can increase it. I also know there is the option to enable Memory/CPU Hotplug, but you need to shutdown the server to enable that anyway. I realize you probably won't be changing the memory often, but I know I have been able to do it in the past. Just wanting to know if I should be able to do this, or if at the very least there is reason for not being able to it.
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John
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The memory driver in the VM is not going to be as sophisticated as that and will work like normal hardware.
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jmcg
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Avatar of Andrew Hancock (VMware vExpert PRO / EE Fellow/British Beekeeper)
Quite simply does your Guest OS, support Memory Hot Plug ?

We've been having some issues with this function, even with OS which support this function, e.g. adding more memory, or CPUs, does not work!
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To enable hot-add, you need to power off the VM, enable the hot-add, start your VM again (that is if it is supported) and from them on, you can hot-add memory.