From mboxrd@z Thu Jan 1 00:00:00 1970 From: David Rhodes Clymer Subject: Resizing bcache backing store Date: Wed, 11 Apr 2012 18:47:03 -0400 Message-ID: Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Return-path: Sender: linux-bcache-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: linux-bcache-u79uwXL29TY76Z2rM5mHXA@public.gmane.org List-Id: linux-bcache@vger.kernel.org In the case where the bcache backing store is resizeable (eg. a logical volume), is it possible to resize the backing store without breaking bcache? Let's say, for example, that I would unmount/unregister /dev/bcacheX, resize the backing store, reregister/remount the cache. I imagine a better approach would be to layer LVM on the cache device itself. However, in this particular case, I set up the bcache before I had learned how to get LVM to use a bcache device as a PV. -davidc