From users-return-33190-archive-asf-public=cust-asf.ponee.io@cloudstack.apache.org Mon Jul 15 11:50:19 2019 Return-Path: X-Original-To: archive-asf-public@cust-asf.ponee.io Delivered-To: archive-asf-public@cust-asf.ponee.io Received: from mail.apache.org (hermes.apache.org [207.244.88.153]) by mx-eu-01.ponee.io (Postfix) with SMTP id 9983F180595 for ; Mon, 15 Jul 2019 13:50:19 +0200 (CEST) Received: (qmail 50725 invoked by uid 500); 15 Jul 2019 11:50:17 -0000 Mailing-List: contact users-help@cloudstack.apache.org; run by ezmlm Precedence: bulk List-Help: List-Unsubscribe: List-Post: List-Id: Reply-To: users@cloudstack.apache.org Delivered-To: mailing list users@cloudstack.apache.org Received: (qmail 50706 invoked by uid 99); 15 Jul 2019 11:50:17 -0000 Received: from pnap-us-west-generic-nat.apache.org (HELO spamd2-us-west.apache.org) (209.188.14.142) by apache.org (qpsmtpd/0.29) with ESMTP; Mon, 15 Jul 2019 11:50:17 +0000 Received: from localhost (localhost [127.0.0.1]) by spamd2-us-west.apache.org (ASF Mail Server at spamd2-us-west.apache.org) with ESMTP id A7CA01A3299 for ; Mon, 15 Jul 2019 11:50:16 +0000 (UTC) X-Virus-Scanned: Debian amavisd-new at spamd2-us-west.apache.org X-Spam-Flag: NO X-Spam-Score: 2.003 X-Spam-Level: ** X-Spam-Status: No, score=2.003 tagged_above=-999 required=6.31 tests=[DKIM_SIGNED=0.1, DKIM_VALID=-0.1, HTML_MESSAGE=2, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_NONE=0.001, URIBL_BLOCKED=0.001] autolearn=disabled Authentication-Results: spamd2-us-west.apache.org (amavisd-new); dkim=pass (2048-bit key) header.d=vrod-dk.20150623.gappssmtp.com Received: from mx1-he-de.apache.org ([10.40.0.8]) by localhost (spamd2-us-west.apache.org [10.40.0.9]) (amavisd-new, port 10024) with ESMTP id 2N-V0_-nE7u3 for ; Mon, 15 Jul 2019 11:50:14 +0000 (UTC) Received-SPF: None (mailfrom) identity=mailfrom; client-ip=2607:f8b0:4864:20::b34; helo=mail-yb1-xb34.google.com; envelope-from=vrod@vrod.dk; receiver= Received: from mail-yb1-xb34.google.com (mail-yb1-xb34.google.com [IPv6:2607:f8b0:4864:20::b34]) by mx1-he-de.apache.org (ASF Mail Server at mx1-he-de.apache.org) with ESMTPS id 186BA7E20D for ; Mon, 15 Jul 2019 11:50:13 +0000 (UTC) Received: by mail-yb1-xb34.google.com with SMTP id j199so6052822ybg.5 for ; Mon, 15 Jul 2019 04:50:13 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=vrod-dk.20150623.gappssmtp.com; s=20150623; h=mime-version:references:in-reply-to:from:date:message-id:subject:to; bh=3w/Brpm0TMguZ0uTMDdu6w9ij0HdS6wla/k+Dh6Rjoo=; b=LwzL7zhCMi8qAogWfZOyHb3tG/EV8nPHtZp32GdY73poXsKVsTESc3puCM/XhcJ1yV s8zwU4HBMAi2AvO0/pwlD8YwUVb52FwNgRPW2q6WGEPEfVa0ZnyAf5sMR6xBZWIw/6dH 327TtDaDpX4W0scgqwUY+AavMvBJ+W9ngCMlA/ofEJ3H39o7hQLGyAIYWbKizINA3RDR /BYhqA4JkelFw3GyNnwDhOpCmcMW85mjScmq3fhkA4G+p2sqIb+3WOOewEGdFMdLP1qU 3woZIm845ueLwkm+pWkwN+67x8jdt3z+/8KHkCWFQe8bjX85pTSbg1KM5JxGT/UStabf /DqQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:references:in-reply-to:from:date :message-id:subject:to; bh=3w/Brpm0TMguZ0uTMDdu6w9ij0HdS6wla/k+Dh6Rjoo=; b=b21y9MbULzho3Ai6f9B8psixdj0TIHJrRElFuADNLBmjN0gL3yKAmZO1btBPq6/SxP GHCFIz6nm9fjfpwY0ot/1jNQvUp3etxmJHShJGOwGB1m2GJLWFvXbwraXT/hy95wwbdC IclVY1li95e5bhBdLHxKD6C/KLAq4YpPgvUVDgA4QZsCAw16oybjMUsqK7PxAh4PiDRM QaNevtX/MPGbaDb+e1rDRSNcE88iAgrq+NFIZiuLaEOG+9D4oI/1zl4lnJ/M0t2eGN8t tmqNfpTprBR8fYyGTgi+LU/lbbYNVBjEHxdD8xBxwsdBiy57Df+o5ayRYN2sPXfAXbSu bdoQ== X-Gm-Message-State: APjAAAV0chwibncjTB+DhHDuoN10zD5Q8oQYwOxpj+GLdc/ZeF3JlSn7 36QEOx8LKSgtyIX3sav/s541+1KsB1eZQgLKxC5FNQ== X-Google-Smtp-Source: APXvYqxZsyOsI3RUJvTJHV9plogZlv5vHath7N1KhQ9JuErzpqiUp2vTnIJkZEO9D8DHCUkHSgpf7zU2iAav7puxxgA= X-Received: by 2002:a25:8706:: with SMTP id a6mr14627482ybl.38.1563191407065; Mon, 15 Jul 2019 04:50:07 -0700 (PDT) MIME-Version: 1.0 References: In-Reply-To: From: Christoffer Pedersen Date: Mon, 15 Jul 2019 13:49:56 +0200 Message-ID: Subject: Re: [VOTE] Ceph, ZFS or Linux Soft RAID? To: users@cloudstack.apache.org Content-Type: multipart/alternative; boundary="00000000000088cfb8058db6dc9f" --00000000000088cfb8058db6dc9f Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: quoted-printable Hello, ZFS is unfortunately not supported, otherwise I would have recommended that. But if you are going local systems (no nfs/iscsi), ext4 would be the way to go. On Mon, Jul 15, 2019 at 1:23 PM Ivan Kudryavtsev wrote: > Hi, > > if you use local fs, use just ext4 over the required disk topology which > gives the desired redundancy. > > E.g. JBOD, R0 work well when data safety policy is established and backup= s > are maintained well. > > Otherwise look to R5, R10 or R6. > > =D0=BF=D0=BD, 15 =D0=B8=D1=8E=D0=BB. 2019 =D0=B3., 18:05 : > > > Isn't that a bit apples and oranges? Ceph is a network distributed > > thingy, not a local solution. > > > > I'd use linux/software raid + lvm, it's the only one supported (by > > CentOS/RedHat). > > > > ZFS on Linux could be interesting if it was supported by Cloudstack, bu= t > > it is not, you'd end up using qcow2 (COW) files on top of a COW > > filesystem which could lead to issues. Also ZFS is not really the > > fastest fs out there, though it does have some nice features. > > > > Did you really mean raid 0? I hope you have backups. :) > > > > hth > > > > > > On 2019-07-15 11:49, Fariborz Navidan wrote: > > > Hello, > > > > > > Which one do you think is faster to use for local soft Raid-0 for > > > primary > > > storage? Ceph, ZFS or Built-in soft raid manager of CentOS? Which one > > > can > > > gives us better IOPS and IO latency on NVMe SSD disks? The storage wi= ll > > > be > > > used for production cloud environment where arround 60 VMs will run o= n > > > top > > > of it. > > > > > > Your ides are highly appreciated > > > --=20 Thanks, Chris pedersen --00000000000088cfb8058db6dc9f--