Update - 2014 July Many of the following steps in this post are no longer required or recommended. Consider it more of a behind the scenes guide for dm-cache from the early days. :) Modern distros have kernel support for dm-cache out of the box, so don’t worry about updating the kernel. The latest lvm2 tools have support for lvmcache which is a front-end to dm-cache and is much easier to use. At t
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