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-mx13.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id s7ALRPbD002365 for ; Sun, 10 Aug 2014 17:27:25 -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 s7ALRMmr025362 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=FAIL) for ; Sun, 10 Aug 2014 17:27:23 -0400 Received: from localhost (localhost [127.0.0.1]) by mail.fibbs.org (Postfix) with ESMTP id 3C3E9200437 for ; Sun, 10 Aug 2014 23:27:21 +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 MlRSu4vjgyXB for ; Sun, 10 Aug 2014 23:27:21 +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 6FE62200436 for ; Sat, 9 Aug 2014 19:25:28 +0200 (CEST) Message-ID: <53E65987.8010605@mglug.de> Date: Sat, 09 Aug 2014 19:25:27 +0200 From: Oliver Rath MIME-Version: 1.0 Content-Transfer-Encoding: 7bit Subject: [linux-lvm] what todo with broken cachedev? 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, assuming a cached device mylv from /dev/sda1 with cachepool from /dev/sdb1 (ssd i.e.): If now the ssd crashes and the cachemode is "writethrough" i think, there is no data loss for my lv's, right? But then mylv runs without a cache device although the device is set in metadata. The command lvreduce cant remove the cache-attribut. vgreduce *could* remove it, right? But only if there is no usage bei the cachepool-device anymore. Is there a solution for that? Tfh! Oliver