From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from plane.gmane.org ([80.91.229.3]:52604 "EHLO plane.gmane.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750761AbcD1FPH (ORCPT ); Thu, 28 Apr 2016 01:15:07 -0400 Received: from list by plane.gmane.org with local (Exim 4.69) (envelope-from ) id 1aveI4-0000VN-EG for linux-btrfs@vger.kernel.org; Thu, 28 Apr 2016 07:15:04 +0200 Received: from p50909051.dip0.t-ipconnect.de ([80.144.144.81]) by main.gmane.org with esmtp (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 28 Apr 2016 07:15:04 +0200 Received: from matthias by p50909051.dip0.t-ipconnect.de with local (Gmexim 0.1 (Debian)) id 1AlnuQ-0007hv-00 for ; Thu, 28 Apr 2016 07:15:04 +0200 To: linux-btrfs@vger.kernel.org From: Matthias Bodenbinder Subject: Re: Question: raid1 behaviour on failure Date: Thu, 28 Apr 2016 07:12:34 +0200 Message-ID: References: <57148B2E.6010904@cn.fujitsu.com> <571871FC.2010101@jp.fujitsu.com> <571F9A92.8060602@googlemail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 In-Reply-To: <571F9A92.8060602@googlemail.com> Sender: linux-btrfs-owner@vger.kernel.org List-ID: Am 26.04.2016 um 18:42 schrieb Holger Hoffstätte: > On 04/26/16 18:19, Henk Slager wrote: >> It looks like a JMS567 + SATA port multipliers behaind it are used in >> this drivebay. The command lsusb -v could show that. So your HW >> setup is like JBOD, not RAID. > > I hate to quote the "harmful" trope, but.. > > SATA Port Multipliers Considered Harmful > https://www.usenix.org/system/files/fastpw13-paper7_0.pdf > > aka: how to make any RAID setup useless in 1 easy step. Interesting article but it has no date to it. Could be outdated or brand new. Matthias