From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:56305 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753138AbbKMTpr (ORCPT ); Fri, 13 Nov 2015 14:45:47 -0500 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1ZxKHo-000454-VJ for linux-btrfs@vger.kernel.org; Fri, 13 Nov 2015 20:45:29 +0100 Received: from ip98-167-165-199.ph.ph.cox.net ([98.167.165.199]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 13 Nov 2015 20:45:28 +0100 Received: from 1i5t5.duncan by ip98-167-165-199.ph.ph.cox.net with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Fri, 13 Nov 2015 20:45:28 +0100 To: linux-btrfs@vger.kernel.org From: Duncan <1i5t5.duncan@cox.net> Subject: Re: Where is the disk space? Date: Fri, 13 Nov 2015 19:45:21 +0000 (UTC) Message-ID: References: <20151113174101.GC19249@merlins.org> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: Marc MERLIN posted on Fri, 13 Nov 2015 09:41:01 -0800 as excerpted: > Any ideas? Without addressing the main question, a couple targets of opportunity: 1) A quick balance with -mprofiles=single should kill those unused single metadata and system mkfs.btrfs legacies so you don't have to see them in fi df. 2) While fi df reports the data total vs. used spread being close enough that it's unsurprising a balance -dusage=80 didn't give you anything back, the spread on metadata is rather higher, dup, 6.0 gig total, less than 1 gig used, so a balance -musage=50 or 80 should return a few gigs, 4-5 I'd guess, leaving you 1-2 gig metadata total. Maybe that's part of the missing snapshot overhead? (The -musage run should kill the unused single profile metadata/system as well, but for a different reason, so I made it a different point and used -mprofiles=single there to avoid conflating the two.) -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman