linux-ext4 - Re: bcache with existing ext4 filesystem

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Message-ID: <64c810cf-a95c-f862-f25a-ebd7419b2632@thelounge.net>
Date:   Mon, 24 Jul 2017 21:08:16 +0200
From:   Reindl Harald <h.reindl@...lounge.net>
To:     Pavel Machek <pavel@....cz>, linux-ext4@...r.kernel.org,
        kernel list <linux-kernel@...r.kernel.org>, tytso@....edu,
        kent.overstreet@...il.com, linux-bcache@...r.kernel.org
Subject: Re: bcache with existing ext4 filesystem



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