From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp01.belwue.de ([129.143.71.86]:54366 "EHLO smtp01.belwue.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750905AbdIITwI (ORCPT ); Sat, 9 Sep 2017 15:52:08 -0400 Received: from fex.rus.uni-stuttgart.de (fex.rus.uni-stuttgart.de [129.69.1.129]) by smtp01.belwue.de (Postfix) with SMTP id 1E7062585 for ; Sat, 9 Sep 2017 21:52:07 +0200 (MEST) Date: Sat, 9 Sep 2017 21:52:06 +0200 From: Ulli Horlacher To: linux-btrfs@vger.kernel.org Subject: Re: netapp-alike snapshots? Message-ID: <20170909195206.GA11461@rus.uni-stuttgart.de> References: <20170822132208.GD14804@rus.uni-stuttgart.de> <20170909132614.GA20299@rus.uni-stuttgart.de> <20170909133612.7iqwr6cbjxzvfny6@merlins.org> <20170909134426.GB20299@rus.uni-stuttgart.de> <14c87878-a5a0-d7d3-4a76-c55812e751a3@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii In-Reply-To: <14c87878-a5a0-d7d3-4a76-c55812e751a3@gmail.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: On Sat 2017-09-09 (22:43), Andrei Borzenkov wrote: > > Your tool does not create .snapshot subdirectories in EVERY directory like > > Neither does NetApp. Those "directories" are magic handles that do not > really exist. I know. But symbolic links are the next close thing (I am not a kernel programmer). > Apart from obvious problem with recursive directory traversal (NetApp > .snapshot are not visible with normal directory list) Yes, they are, at least sometimes, eg tar includes the snapshots. -- Ullrich Horlacher Server und Virtualisierung Rechenzentrum TIK Universitaet Stuttgart E-Mail: horlacher@tik.uni-stuttgart.de Allmandring 30a Tel: ++49-711-68565868 70569 Stuttgart (Germany) WWW: http://www.tik.uni-stuttgart.de/ REF:<14c87878-a5a0-d7d3-4a76-c55812e751a3@gmail.com>