From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from 011.lax.mailroute.net (011.lax.mailroute.net [199.89.1.14]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 10CFA26AF4 for ; Fri, 13 Feb 2026 17:33:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=199.89.1.14 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771003984; cv=none; b=Pn8zKcOZ8puvk1PS57R6GP4PSBX5pk2RHu9evImwQzWWCCD2JcH5agmewaaojV6OisCYeUZ+j+ESZ8LRc70rH6oM2fML068vOIBHnduuDKAAVQz7esTb1Gxl6KVfatyZh4k/vIHoWdlCtmsSRI1hq3iCunvofkXm/h1tNsTsYcA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1771003984; c=relaxed/simple; bh=CsD1vFUSRD78IHMZIPSpdwR01lMJZ4WmxOpaFDSdwMc=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=pLa1gTc7hXzbbgcUZzBotLChpy84M3t9ZwKzhyMnp95ZJGYf1HeT/LaKAliquMk7rIiSdFbfdqx9Lv1c8KaG/51ugzejtuB7bLSofK+vvjc71gQc0hbc3Za4sL/7mVWAXlIgc1ix0TaZliCOgk/l7WriGZLH2XGK8usvJbhwhZE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org; spf=pass smtp.mailfrom=acm.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b=DrbEHDMc; arc=none smtp.client-ip=199.89.1.14 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=acm.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=acm.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=acm.org header.i=@acm.org header.b="DrbEHDMc" Received: from localhost (localhost [127.0.0.1]) by 011.lax.mailroute.net (Postfix) with ESMTP id 4fCK4m5V74z1XM0kC; Fri, 13 Feb 2026 17:32:56 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=acm.org; h= content-transfer-encoding:content-type:content-type:in-reply-to :from:from:content-language:references:subject:subject :user-agent:mime-version:date:date:message-id:received:received; s=mr01; t=1771003975; x=1773595976; bh=CsD1vFUSRD78IHMZIPSpdwR0 1lMJZ4WmxOpaFDSdwMc=; b=DrbEHDMcfD1J9l618td5828nU36lZCt0izKhRbmS HhW2dbWI1j+ZQOX/cq9/5EbEVBPz+7TitBHmXcR1QtQ0s80oOW6UmvdPLTgdeNN0 oDUVkHk//ceOJToPi+UcMdfDgpO10HvdGf8HUgSzBoiMLJnmlt6izIwMYXwD1gSi oc5jz2ks1YNJl/5N+VzBv30YecBJw3y8YtwatfscMIZCa6Rl5hsD6XsD9XaHdKRp d89kIaj9k5Rj7u6V64veJOlCgq962oSLrIZxbJq5fQPT4cEiV1FIbWTW7jpfXclz VeYIHLDX0aVdEnUxC7X4zzgUvO/gacBgdZY0Rsr4U8q3OA== X-Virus-Scanned: by MailRoute Received: from 011.lax.mailroute.net ([127.0.0.1]) by localhost (011.lax [127.0.0.1]) (mroute_mailscanner, port 10029) with LMTP id Pz6C9Y81gg4d; Fri, 13 Feb 2026 17:32:55 +0000 (UTC) Received: from [100.119.48.131] (unknown [104.135.180.219]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits) server-digest SHA256) (No client certificate requested) (Authenticated sender: bvanassche@acm.org) by 011.lax.mailroute.net (Postfix) with ESMTPSA id 4fCK4k4XjGz1XM31H; Fri, 13 Feb 2026 17:32:54 +0000 (UTC) Message-ID: <7aca0686-b255-4ece-b766-ebfc90df7340@acm.org> Date: Fri, 13 Feb 2026 09:32:53 -0800 Precedence: bulk X-Mailing-List: linux-block@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [LSF/MM/BPF TOPIC] A block level, active-active replication solution To: Haris Iqbal , lsf-pc@lists.linux-foundation.org, linux-block@vger.kernel.org Cc: Jia Li References: Content-Language: en-US From: Bart Van Assche In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 2/3/26 7:09 AM, Haris Iqbal wrote: > We would like to present the idea and internal workings of the > solution, and also discuss design and some benchmarking results > (comparison with RAID1 over RNBD/NVMeOF devices, or DRBD) during > LSF/MM/BPF. We also want to get feedback, and potentially get more > people involved in the project. Please prepare for the question why the choice has been made to implement this functionality as a new kernel module instead of integrating this functionality in the DRBD kernel driver. Thanks, Bart.