[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] Re: [Xen-users] Running State Ram Upgrade
> How and is it posible to do a ram upgrade on a xen vm while running? > And if so how would I do something like that? The command you want is xm mem-set You'll also want to set the maximum memory allowed to the domain (xm mem-max) appropriately in order to control this. Finally, IIRC, you'd need to set up the domU so that it's expecting the RAM upgrade; either start it with the largest amount of memory it'll ever have or set "memmap=xx" on the extra= section of the config file. This gets appended to the kernel commandline to tell the kernel how much memory (at most) to expect so it can size its data structures appropriately. I set "memmap=4G" in my domUs so that they can always handle up to 4G of memory if necessary. It would be nicer to have the memory map resized automatically; I seem to remember talk of allowing this in generic Linux so maybe we'll be able to leverage this one day! HTH, Cheers, Mark _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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