From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mx1.redhat.com (ext-mx16.extmail.prod.ext.phx2.redhat.com [10.5.110.21]) by int-mx10.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s79Di1L6007894 for ; Sat, 9 Aug 2014 09:44:01 -0400 Received: from mail.fibbs.org (phineas.fibbs.org [109.234.106.32]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id s79Dhweh026202 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sat, 9 Aug 2014 09:43:59 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.fibbs.org (Postfix) with ESMTP id DA3BE200428 for ; Sat, 9 Aug 2014 15:43:56 +0200 (CEST) Received: from mail.fibbs.org ([127.0.0.1]) by localhost (mail.fibbs.org [127.0.0.1]) (amavisd-new, port 10025) with ESMTP id iOz7h-hW0FUM for ; Sat, 9 Aug 2014 15:43:56 +0200 (CEST) Received: from [192.168.200.131] (host-62-245-233-61.customer.m-online.net [62.245.233.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (Client did not present a certificate) by mail.fibbs.org (Postfix) with ESMTPSA id 86C9A2002CB for ; Sat, 9 Aug 2014 15:43:56 +0200 (CEST) Message-ID: <53E6259B.8090902@mglug.de> Date: Sat, 09 Aug 2014 15:43:55 +0200 From: Oliver Rath MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] howto cache a thinpool-device? 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" To: LVM general discussion and development Hi list, Im playing around with the new cache options. Ive created a lvm-device on my cache-disk named lvx-cache (vg is dmivg). Additionally Ive created a thinpool-device named winthinpool. Now i wanted to use my cache-device to cache my thinpool-lvm, but this doesnt work: ~# lvconvert --type cache --cachepool dmivg/lvx_cache dmivg/winthinpool Can't cache thin-pool volume dmivg/winthinpool. isnt is possible to cache a thinpool-device? Tfh! Oliver