From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx07.extmail.prod.ext.phx2.redhat.com [10.5.110.31]) by smtp.corp.redhat.com (Postfix) with ESMTPS id D08D311A255 for ; Thu, 13 Apr 2017 17:32:07 +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 F1C5FC0A847A for ; Thu, 13 Apr 2017 17:32:05 +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 v3DHTlBq023252 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NO) for ; Thu, 13 Apr 2017 13:29:51 -0400 Date: Thu, 13 Apr 2017 13:32:00 -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: > >> IMO, the friendliest thing to do is to freeze the pool in read-only mode >> just before running out of metadata. > > It's not about metadata but about physical extents. > > In the thin pool. Ok. My understanding is that *all* the volumes in the same thin-pool would have to be frozen when running out of extents, as writes all pull from the same pool of physical extents. -- Stuart D. Gathman "Confutatis maledictis, flamis acribus addictis" - background song for a Microsoft sponsored "Where do you want to go from here?" commercial.