From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx03.extmail.prod.ext.phx2.redhat.com [10.5.110.27]) by smtp.corp.redhat.com (Postfix) with ESMTPS id 10F4D179C2 for ; Thu, 13 Apr 2017 17:26:53 +0000 (UTC) Received: from mail.gathman.org (mail.gathman.org [70.184.247.44]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mx1.redhat.com (Postfix) with ESMTPS id 6CC2CD999A for ; Thu, 13 Apr 2017 17:26:52 +0000 (UTC) Received: from wiki.gathman.org (wiki.gathman.org [IPv6:2001:470:8:809::2]) (authenticated bits=0) by mail.gathman.org (8.14.4/8.14.4) with ESMTP id v3DHOX5v023240 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 13 Apr 2017 13:24:37 -0400 Date: Thu, 13 Apr 2017 13:26:46 -0400 (EDT) From: "Stuart D. Gathman" In-Reply-To: <759c96fae2344adff733ded154bfdd16@xenhideout.nl> Message-ID: References: <1438f48b-0a6d-4fb7-92dc-3688251e0a00@assyoma.it> <58E7992A.4030000@tlinx.org> <7732cbebfc561db0d8749310f1ba010f@xenhideout.nl> <016916bc-b369-5efa-d48d-bd49cc7fd57b@gathman.org> <759c96fae2344adff733ded154bfdd16@xenhideout.nl> MIME-Version: 1.0 Subject: Re: [linux-lvm] Snapshot behavior on classic LVM vs ThinLVM Reply-To: LVM general discussion and development List-Id: LVM general discussion and development List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , List-Id: Content-Type: text/plain; charset="us-ascii"; format="flowed" Content-Transfer-Encoding: 7bit To: LVM general discussion and development On Thu, 13 Apr 2017, Xen wrote: > Stuart Gathman schreef op 13-04-2017 17:29: > >> understand and recover. A sysadmin could have a plain LV for the >> system volume, so that logs and stuff would still be kept, and admin >> logins work normally. There is no panic, as the data is there read-only. > > Yeah a system panic in terms of some volume becoming read-only is perfectly > acceptable. > > However the kernel going entirely mayhem, is not. Heh. I was actually referring to *sysadmin* panic, not kernel panic. :-) But yeah, sysadmin panic can result in massive data loss... -- Stuart D. Gathman "Confutatis maledictis, flamis acribus addictis" - background song for a Microsoft sponsored "Where do you want to go from here?" commercial.