From: Reindl Harald Subject: Re: bcache with existing ext4 filesystem Date: Mon, 24 Jul 2017 21:08:16 +0200 Message-ID: <64c810cf-a95c-f862-f25a-ebd7419b2632@thelounge.net> References: <20170724185703.GA31422@amd> Mime-Version: 1.0 Content-Type: text/plain; charset=windows-1252; format=flowed Content-Transfer-Encoding: 7bit To: Pavel Machek , linux-ext4@vger.kernel.org, kernel list , tytso@mit.edu, kent.overstreet@gmail.com, linux-bcache@vger.kernel.org Return-path: In-Reply-To: <20170724185703.GA31422@amd> Content-Language: de-CH Sender: linux-bcache-owner@vger.kernel.org List-Id: linux-ext4.vger.kernel.org Am 24.07.2017 um 20:57 schrieb Pavel Machek: > Would it be feasible to run bcache (write-through) with existing ext4 > filesystem? > > I have 400GB of data I'd rather not move, and SSD I could use for > caching. Ok, SSD is connecte over USB2, but I guess it is still way > faster then seeking harddrive on random access i doubt that seriously - USB2 has a terrible latency