From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-we0-f180.google.com ([74.125.82.180]:46442 "EHLO mail-we0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751801AbaHDOMj (ORCPT ); Mon, 4 Aug 2014 10:12:39 -0400 Received: by mail-we0-f180.google.com with SMTP id w61so7823276wes.39 for ; Mon, 04 Aug 2014 07:12:37 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <53DF9293.2090508@gmail.com> References: <53DEE40C.6020403@cn.fujitsu.com> <17833067.mzxAL4oqZq@quad> <20140804102206.GA31950@carfax.org.uk> <20140804113231.GD31950@carfax.org.uk> <53DF9293.2090508@gmail.com> From: Peter Waller Date: Mon, 4 Aug 2014 15:11:56 +0100 Message-ID: Subject: Re: ENOSPC with mkdir and rename To: Austin S Hemmelgarn Cc: linux-btrfs@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-btrfs-owner@vger.kernel.org List-ID: On 4 August 2014 15:02, Austin S Hemmelgarn wrote: > I really disagree with the statement that adding more storage is > difficult or expensive, all you need to do is plug in a 2G USB flash > drive, or allocate a ramdisk, and add the device to the filesystem only > long enough to do a full balance. What if the machine is a server in a datacenter you don't have physical access to and the problem is an emergency preventing your users from being able to get work done? What happens if you use a RAM disk and there is a power failure? Thanks for the other explanations and advice also, - Peter