From mboxrd@z Thu Jan 1 00:00:00 1970 From: Bandan Das Subject: Re: One off question: Hot vertical scaling of a KVM? Date: Wed, 19 Aug 2015 14:48:08 -0700 Message-ID: References: <029D7C716947D747B131EF6F51EA2F9217D4F4FD@GAALPA1MSGUSRAG.ITServices.sbc.com> Mime-Version: 1.0 Content-Type: text/plain Cc: "kvm\@vger.kernel.org" , "WEINSTEIN\, MICHAEL A" To: "ROZUMNY\, VICTOR" Return-path: Received: from mx1.redhat.com ([209.132.183.28]:55825 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751406AbbHSVsK (ORCPT ); Wed, 19 Aug 2015 17:48:10 -0400 In-Reply-To: <029D7C716947D747B131EF6F51EA2F9217D4F4FD@GAALPA1MSGUSRAG.ITServices.sbc.com> (VICTOR ROZUMNY's message of "Wed, 19 Aug 2015 20:50:18 +0000") Sender: kvm-owner@vger.kernel.org List-ID: "ROZUMNY, VICTOR" writes: > Hello- > > Your site states that one off questions might could be answered via > email so here I am. > > I have limited knowledge of KVM, but it is my understanding that in > order to vertically scale RAM for a KVM the guest needs to be shut > down, resized, and rebooted, resulting in a 5-10 minute interruption > of service. What's vertical scaling ? You mean, increase the amount of memory the guest sees ? You could use Qemu memory hotplug I think but that requires that the guest has been booted with enough number of "dimm" slots. Bandan > Is this true and if so do you know of any efforts to change this > behavior? > > Thank you! > > v. > > Vic Rozumny | Principal Technical Architect AIC - AT&T Integrated > Cloud | Complex Engineering > > > > > > -- > To unsubscribe from this list: send the line "unsubscribe kvm" in > the body of a message to majordomo@vger.kernel.org > More majordomo info at http://vger.kernel.org/majordomo-info.html