From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mondschein.lichtvoll.de ([194.150.191.11]:60223 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753657AbcK3Tgz (ORCPT ); Wed, 30 Nov 2016 14:36:55 -0500 From: Martin Steigerwald To: Chris Murphy Cc: "Austin S. Hemmelgarn" , Wilson Meier , Duncan <1i5t5.duncan@cox.net>, Btrfs BTRFS Subject: Re: Convert from RAID 5 to 10 Date: Wed, 30 Nov 2016 20:36:51 +0100 Message-ID: <2106513.UkuxMIuvWQ@merkaba> In-Reply-To: References: <10bbbf97-7f43-c972-a832-4a8cf054d5e5@xgm.de> <19671a71-5d1c-c42e-db3d-c870ec08b2ff@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Sender: linux-btrfs-owner@vger.kernel.org List-ID: Am Mittwoch, 30. November 2016, 12:09:23 CET schrieb Chris Murphy: > On Wed, Nov 30, 2016 at 7:37 AM, Austin S. Hemmelgarn > > wrote: > > The stability info could be improved, but _absolutely none_ of the things > > mentioned as issues with raid1 are specific to raid1. And in general, in > > the context of a feature stability matrix, 'OK' generally means that there > > are no significant issues with that specific feature, and since none of > > the > > issues outlined are specific to raid1, it does meet that description of > > 'OK'. > > Maybe the gotchas page needs a one or two liner for each profile's > gotchas compared to what the profile leads the user into believing. > The overriding gotcha with all Btrfs multiple device support is the > lack of monitoring and notification other than kernel messages; and > the raid10 actually being more like raid0+1 I think it certainly a > gotcha, however 'man mkfs.btrfs' contains a grid that very clearly > states raid10 can only safely lose 1 device. Wow, that manpage is quite an resource. Developers, documentation people definitely improved the official BTRFS documentation. Thanks, -- Martin