From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail.virtall.com ([178.63.195.102]:51658 "EHLO mail.virtall.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751262Ab3FJGbw (ORCPT ); Mon, 10 Jun 2013 02:31:52 -0400 Received: from mail.virtall.com (localhost [127.0.0.1]) by mail.virtall.com (Postfix) with ESMTP id 863A53A0B1C for ; Mon, 10 Jun 2013 08:21:37 +0200 (CEST) Received: from localhost (unknown [123.109.194.100]) by mail.virtall.com (Postfix) with ESMTPSA id 67BCD3A0ABA for ; Mon, 10 Jun 2013 08:21:36 +0200 (CEST) Date: Mon, 10 Jun 2013 15:21:27 +0900 From: Tomasz Chmielewski To: linux-btrfs@vger.kernel.org Subject: btrfs quota examples? Message-ID: <20130610152127.38fb8a50@virtall.com> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Sender: linux-btrfs-owner@vger.kernel.org List-ID: I'm trying to use btrfs quotas, but I'm unable to find reliable documentation on its usage. Let's start with an empty subvolume: - assign 200 MB space to it: # btrfs qgroup limit 200m /mnt/btrfs-backup/tester/ - see the usage: # btrfs qgroup show /mnt/btrfs-backup/tester/ 0/803 0 0 - let's add a 100 MB file: # dd if=/dev/urandom of=bigfile bs=1M count=100 - sync the FS to make sure quota is updated: # btrfs filesystem sync /mnt/btrfs-backup/ FSSync '/mnt/btrfs-backup/' - see current quota usage: # btrfs qgroup show /mnt/btrfs-backup/backuppc/tester/ 0/803 104882176 104882176 Now, my questions: - what do both 104882176 104882176 numbers represent? - how can I verify the quota assigned to any given subvolume? I've assigned 200 MB, but how can I verify that number? -- Tomasz Chmielewski http://wpkg.org