From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-qk0-f170.google.com ([209.85.220.170]:34072 "EHLO mail-qk0-f170.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751688AbcIAVpX (ORCPT ); Thu, 1 Sep 2016 17:45:23 -0400 Received: by mail-qk0-f170.google.com with SMTP id t7so100008094qkh.1 for ; Thu, 01 Sep 2016 14:45:22 -0700 (PDT) Message-ID: <1472751548.3137.9.camel@gmail.com> Subject: Re: BTRFS constantly reports "No space left on device" even with a huge unallocated space From: Ronan Arraes Jardim Chagas To: Jeff Mahoney , "Austin S. Hemmelgarn" , Chris Murphy Cc: Wang Xiaoguang , Btrfs BTRFS , Qu Wenruo Date: Thu, 01 Sep 2016 14:39:08 -0300 In-Reply-To: References: <1471023419.16857.9.camel@gmail.com> <57C426AB.3020607@cn.fujitsu.com> <1472485953.3290.0.camel@gmail.com> <57C4EB85.7030000@cn.fujitsu.com> <1472561404.3179.3.camel@gmail.com> <1472676550.8145.1.camel@gmail.com> <52290114-3b37-2de5-9c9f-ceda6dff955b@suse.com> <1472734635.3137.4.camel@gmail.com> <0778dff0-cb43-d279-adb2-0e314b61110d@gmail.com> <1472747695.3137.7.camel@gmail.com> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Hi Jeff, Em Qui, 2016-09-01 às 13:12 -0400, Jeff Mahoney escreveu: > It's not.  We use qgroups because that's the only way we can track > how > much space each subvolume is using, regardless of whether anyone > wants > to do enforcement.  When it's working properly, snapper can make use > of > that information to make informed decisions on how much space will > actually be released when removing old snapshots. > Given that, what am I loosing by disabling qgroups here? Will I still be able to recover my machine using snapshots (this saved my two or three times)? Best regards, Ronan Arraes