From: Hans Kraus <hans-V6XWkrn/fmtByuSxxbvQtw@public.gmane.org>
Subject: Partition possible as caching device; external journal for Ext4?
Date: Fri, 27 Sep 2013 10:21:26 +0200
Message-ID: <52454006.7020902@hanswkraus.com>
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Hi,

is it possible to use only a partition of an SSD as caching device for
bcache or is a complete device necessary?

Is there a rule of thumb for the cache size? Eg. at what value I do get
diminishing returns?

When I cache a big Raid6 with Ext4, makes it still sense (performance
wise) to put the journal on a separate SSD partition?

Regards, Hans