From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-0.9 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,HTML_MESSAGE, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 65E59CA9EC3 for ; Thu, 31 Oct 2019 09:06:39 +0000 (UTC) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 318012083E for ; Thu, 31 Oct 2019 09:06:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=qnap.com header.i=@qnap.com header.b="XqBVeFH+" DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 318012083E Authentication-Results: mail.kernel.org; dmarc=fail (p=none dis=none) header.from=qnap.com Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Received: from localhost ([::1]:47760 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iQ6Pe-0006pI-8u for qemu-devel@archiver.kernel.org; Thu, 31 Oct 2019 05:06:38 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:60488) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1iQ6Oe-0005l2-77 for qemu-devel@nongnu.org; Thu, 31 Oct 2019 05:05:37 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1iQ6Od-0008Du-1m for qemu-devel@nongnu.org; Thu, 31 Oct 2019 05:05:35 -0400 Received: from mail-yw1-xc2b.google.com ([2607:f8b0:4864:20::c2b]:41120) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_128_CBC_SHA1:16) (Exim 4.71) (envelope-from ) id 1iQ6Oc-0008BV-SK for qemu-devel@nongnu.org; Thu, 31 Oct 2019 05:05:34 -0400 Received: by mail-yw1-xc2b.google.com with SMTP id j131so1866463ywa.8 for ; Thu, 31 Oct 2019 02:05:34 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=qnap.com; s=google; h=mime-version:from:date:message-id:subject:to; bh=Qf6M7vd7i/txNHtq04oL6TDWr5Iju7KFon5CwBjGTyM=; b=XqBVeFH+gSH/wJGGCaDUTK1kWp0zIKQpTZbymuveQ4MZZISPJRI7nV6/N7Bsjp9itv pP5PvZoRmdTQuqL4/8RnffbueGBx1uaT0AEOHe8gA106VONXmkww0nUbWSB+twHsuKvN Xpj/mevOU/zY98Oy4kAaHYP4ObJp9clN6pD3A= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:from:date:message-id:subject:to; bh=Qf6M7vd7i/txNHtq04oL6TDWr5Iju7KFon5CwBjGTyM=; b=ScLlGyNyjICPmdYv/y7IyAxhDMaaXW4x2tzbwXA800hIUyQxydWE4EsAJNL9YXPG6Q us0Vk87MOgSkXIvpK8r2lLBAytqsRGATGqmTlRju5i5X8iyDpgj6vtw6vYr2IfHbRLBP vX5EaUNbNkdKF86XAhmg+CIUXR/Hs9ViyrUfPk6u6IujZl4PxH2ZSfvRkbbYtz7NmTKo TgskfsOKmZ5U7oNCnqSsVwKCyS/iSXD/VoA3b3dg/qaYsdN3zZ6Gw48VDFunPt/Dxf1+ kQcPDLitdGF1hLJAfALvevD52xa9+hEYIMBxiiScmdP3G9kzOTd6wF12VvOlLeEioqq3 YdJA== X-Gm-Message-State: APjAAAXhqnP0YwKf+yeVUvTs0ytcYodgqnPYxl9FcqcbNFKh4J5YjmMH qZhRaNSnSUZzpnaw1kEtlni5lgrd8HIXPM4yn5GlI1Ncw+jkBA== X-Google-Smtp-Source: APXvYqzrXy+UIUiUsFwOEnL6BgtRHalglrOzSXDTNJb4FXS9Lpp2Kt6auBRbe+PGPKNG2RS0H5vjz6xATMQVkD+G5IQ= X-Received: by 2002:a81:2cc6:: with SMTP id s189mr3191905yws.154.1572512732841; Thu, 31 Oct 2019 02:05:32 -0700 (PDT) MIME-Version: 1.0 From: Daniel Cho Date: Thu, 31 Oct 2019 17:05:20 +0800 Message-ID: Subject: The problems about COLO To: qemu-devel@nongnu.org Content-Type: multipart/alternative; boundary="000000000000d8a2ed05963126c5" X-detected-operating-system: by eggs.gnu.org: Genre and OS details not recognized. X-Received-From: 2607:f8b0:4864:20::c2b X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" --000000000000d8a2ed05963126c5 Content-Type: text/plain; charset="UTF-8" Hello all, I have some questions about the COLO. 1) Could we dynamic set fault tolerance feature on running VM? In your document, the primary VM could not start first (if you start primary VM, the secondary VM will need to start), it means to if I want this VM with fault-tolerance feature, it needs to be set while we boot it. 2) If primary VM or secondary VM broke, could we start the third VM to keep fault tolerance feature? Best regard, Daniel Cho. --000000000000d8a2ed05963126c5 Content-Type: text/html; charset="UTF-8" Content-Transfer-Encoding: quoted-printable
Hello all,=C2=A0
I have some questions about the COLO.= =C2=A0
1)=C2=A0 Could we dynamic set fault tolerance feature on running VM?
In your document, the primary VM could not=C2=A0 start first (if= you start primary VM, the secondary VM will need to start), it means to if= I want this VM with fault-tolerance feature, it needs to be set while we b= oot it.

2)=C2=A0 If primary VM or secondary VM bro= ke, could we start the third VM to keep fault tolerance feature?
=

Best regard,=C2=A0
Daniel Cho.
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