From mboxrd@z Thu Jan 1 00:00:00 1970 From: Pavol Cupka Subject: 2 drives btrfs raid1 with one ssd Date: Mon, 16 Dec 2013 02:01:57 +0100 Message-ID: <1387155717.6876.29.camel@N900-P> Reply-To: Pavol Cupka Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from mail-ee0-f54.google.com ([74.125.83.54]:44643 "EHLO mail-ee0-f54.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751908Ab3LPBBv (ORCPT ); Sun, 15 Dec 2013 20:01:51 -0500 Received: by mail-ee0-f54.google.com with SMTP id e51so1634652eek.13 for ; Sun, 15 Dec 2013 17:01:50 -0800 (PST) Received: from [192.168.178.28] (p549A46D8.dip0.t-ipconnect.de. [84.154.70.216]) by mx.google.com with ESMTPSA id a45sm36033400eem.6.2013.12.15.17.01.49 for (version=SSLv3 cipher=RC4-SHA bits=128/128); Sun, 15 Dec 2013 17:01:50 -0800 (PST) Content-ID: <1387155717.6876.28.camel@N900-P> Sender: linux-bcache-owner@vger.kernel.org List-Id: linux-bcache@vger.kernel.org To: linux-bcache@vger.kernel.org Hi all, I would like to use a bcache for btrfs filesystem residing on two identical disk as raid1 using btrfs' raid (without soft/hard raid). Is it possible? I am migrating from a different mirror setup and have to create btrfs in "degraded" mode and then add the second drive/bcache. I would like to use the same ssd/ssd partition for caching both drives/mirror. Is this doable? Did someone encounter problems with bcache build as module? I can not stop the current caching device. Thank you pavol