From mboxrd@z Thu Jan 1 00:00:00 1970 From: Dan Mick Subject: Re: Understanding Ceph Date: Thu, 24 Jan 2013 13:07:01 -0800 Message-ID: <5101A275.5070408@inktank.com> References: <50FAC92C.8030709@bmrb.wisc.edu> <50FAE116.2010504@gmail.com> <50FC1DCF.8010304@bmrb.wisc.edu> <51007C0C.2030107@bmrb.wisc.edu> <51013D5F.7090105@bmrb.wisc.edu> <51015318.8000404@bmrb.wisc.edu> <51017A4D .2000901@inktank.com> <51018454.1050101@bmrb.wisc.edu> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Return-path: Received: from mail-da0-f49.google.com ([209.85.210.49]:64126 "EHLO mail-da0-f49.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755769Ab3AXVHG (ORCPT ); Thu, 24 Jan 2013 16:07:06 -0500 Received: by mail-da0-f49.google.com with SMTP id v40so4417861dad.22 for ; Thu, 24 Jan 2013 13:07:05 -0800 (PST) In-Reply-To: <51018454.1050101@bmrb.wisc.edu> Sender: ceph-devel-owner@vger.kernel.org List-ID: To: Dimitri Maziuk Cc: "ceph-devel@vger.kernel.org" > You'd think that only one [osd] section in ceph.conf implies > nrep = 1, though. (And then you can go on adding OSDs and changing nrep > accordingly -- that was my plan.) > Yeah; it's probably mostly just that one-OSD configurations are so uncommon that we never special-cased that small user set. Also, you can run with a cluster in that state forever (well, until that one OSD dies at least); I do that regularly with the default vstart.sh local test cluster