From owner-freebsd-fs@freebsd.org Wed Mar 9 00:05:15 2016 Return-Path: Delivered-To: freebsd-fs@mailman.ysv.freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:1900:2254:206a::19:1]) by mailman.ysv.freebsd.org (Postfix) with ESMTP id 01192AC8800; Wed, 9 Mar 2016 00:05:15 +0000 (UTC) (envelope-from lslusser@gmail.com) Received: from mail-vk0-x236.google.com (mail-vk0-x236.google.com [IPv6:2607:f8b0:400c:c05::236]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client CN "smtp.gmail.com", Issuer "Google Internet Authority G2" (verified OK)) by mx1.freebsd.org (Postfix) with ESMTPS id A8741CD4; Wed, 9 Mar 2016 00:05:14 +0000 (UTC) (envelope-from lslusser@gmail.com) Received: by mail-vk0-x236.google.com with SMTP id e185so37352714vkb.1; Tue, 08 Mar 2016 16:05:14 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc; bh=WOk5WWP9pQwt2NV8ukBTmjl6VUtNWJPE1ke8x+HyNvo=; b=faWODljHmdJjv4BdBuQ9loa+2L2kTRfVKRhPPrR4bs1e7Q9C/aCVL+5b+GVnaABeaX MFX+5mwcZYhvmaJw8lW+N4Ru8ArKOvUxQmVdXa+mHF3UbCGSNqAq5MnH3HmTuYLxYpGY NtBOF3uff+QF0rvD4EV4tiTt799GFGuQJjbCuL11VFHauRYb7VnwJ+YiEnWei5p4DaIx vqVqfihbhiy4oLImVuGIWt9/9kJcmwS24VfQkwOgCixv3zvAwQiN7auoyLhEfwNm2lPq LzIdIdtdJUoxH8VEinzX29dKN+h9n0fyELAjq1UhF4vDyDFU84J6xqwf5a6wtl4YBK8n j6LA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:cc; bh=WOk5WWP9pQwt2NV8ukBTmjl6VUtNWJPE1ke8x+HyNvo=; b=b4esiJHjETCB0/BFj3DUqQZKFv6MDvCK1cjJOCS4Ycw6Qw9PycGsQNXdzgJ4IK63VY 7BDuXGBcMiQLnyS8Oz1zQ1w76gylUvYUV4ra626jdy/DpNGcBQsz+6XWmLzi9WnnXpZH pu6mAnevOsrGZFEv/bkEnGVJCjQwOuqCHucJSQxETVoLzPf2SA6ETb11HciF2TJo+w2U kBgF6m2p0CM938Xmuu/AM1s9zEaOAywWNYg++Ga0rP+ZTcldBss4lGRnSr7rh7OPibXZ 0ZfdV5Yqb0KEv18RGmGtlZArMqH3CcA6lOZSlCwNwWKaQ5UcmoeFj957IhYXH761EwsC skQw== X-Gm-Message-State: AD7BkJKSHCullOJPaIzi+3vF3EJjJgb84Yd9sJzc1WjvduRsOKEZOmhFJwUHFbzXeTEoGQZzKrWxCpPSt3XtXQ== MIME-Version: 1.0 X-Received: by 10.31.3.80 with SMTP id 77mr23505443vkd.17.1457481913545; Tue, 08 Mar 2016 16:05:13 -0800 (PST) Received: by 10.176.1.166 with HTTP; Tue, 8 Mar 2016 16:05:13 -0800 (PST) In-Reply-To: References: <95563acb-d27b-4d4b-b8f3-afeb87a3d599@me.com> <56D87784.4090103@broken.net> <5158F354-9636-4031-9536-E99450F312B3@RichardElling.com> <6E2B77D1-E0CA-4901-A6BD-6A22C07536B3@gmail.com> Date: Tue, 8 Mar 2016 16:05:13 -0800 Message-ID: Subject: Re: [zfs] [developer] Re: [smartos-discuss] an interesting survey -- the zpool with most disks you have ever built From: Liam Slusser To: zfs@lists.illumos.org Cc: "smartos-discuss@lists.smartos.org" , developer@lists.open-zfs.org, developer , illumos-developer , omnios-discuss , Discussion list for OpenIndiana , "zfs-discuss@list.zfsonlinux.org" , "freebsd-fs@FreeBSD.org" , "zfs-devel@freebsd.org" X-Mailman-Approved-At: Wed, 09 Mar 2016 01:04:37 +0000 Content-Type: text/plain; charset=UTF-8 X-Content-Filtered-By: Mailman/MimeDel 2.1.21 X-BeenThere: freebsd-fs@freebsd.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: Filesystems List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Mar 2016 00:05:15 -0000 Hi Fred - We don't use any cluster software. Our backup server is just a full copy of our data and nothing more. So in the event of a failure of the master our server clients don't automatically fail over or anything nifty like that. This filer isn't customer facing, so in the event of a failure of the master there is no customer impact. We use a slightly modified zrep to handle the replication between the two. thanks, liam > [Fred]: zpool wiith 280 drives in production is pretty big! I think 2000 >> drives were just in test. It is true that huge pools have lots of operation >> challenges. I have met the similar sluggish issue caused by a >> > will-die disk. Just curious, what is the cluster software > implemented in > http://everycity.co.uk/alasdair/2011/05/adjusting-drive-timeouts-with-mdb-on-solaris-or-openindiana/ > ? > > Thanks. > > Fred >