From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-lf0-f45.google.com ([209.85.215.45]:33923 "EHLO mail-lf0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932349AbeAHQUM (ORCPT ); Mon, 8 Jan 2018 11:20:12 -0500 Received: by mail-lf0-f45.google.com with SMTP id h140so12688281lfg.1 for ; Mon, 08 Jan 2018 08:20:11 -0800 (PST) Message-ID: <5A539A3A.10107@gmail.com> Date: Mon, 08 Jan 2018 17:20:10 +0100 From: ein MIME-Version: 1.0 To: "Austin S. Hemmelgarn" , Btrfs BTRFS Subject: Re: Recommendations for balancing as part of regular maintenance? References: In-Reply-To: Content-Type: text/plain; charset=utf-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 01/08/2018 04:55 PM, Austin S. Hemmelgarn wrote: > [...] > > And here's the FAQ entry: > > Q: Do I need to run a balance regularly? > > A: In general usage, no. A full unfiltered balance typically takes a > long time, and will rewrite huge amounts of data unnecessarily. You may > wish to run a balance on metadata only (see Balance_Filters) if you find > you have very large amounts of metadata space allocated but unused, but > this should be a last resort. IHMO three more sentencens and the answer would be more useful: 1. BTRFS balance command example with note check the man first. 2. What use case may cause 'large amounts of metadata space allocated but unused'. -- PGP Public Key (RSA/4096b): ID: 0xF2C6EA10 SHA-1: 51DA 40EE 832A 0572 5AD8 B3C0 7AFF 69E1 F2C6 EA10