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Re: [linux-lvm] Testing the new LVM cache feature



On Thu, May 22, 2014 at 02:04:05PM -0400, Mike Snitzer wrote:
> By default dm-cache (as is currently upstream) is _not_ going to cache
> sequential IO, and it also isn't going to cache IO that is first
> written.  It waits for hit counts to elevate to the promote threshold.
> So dm-cache effectively acts as a hot-spot cache by default.

OK, that makes sense, thanks.

I wrote about using the LVM cache feature here:

https://rwmj.wordpress.com/2014/05/22/using-lvms-new-cache-feature/#content

Rich.

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