On Mon, 6 Mar 2017 19:57:11 -0700 Mike Lovell wrote: > has anyone on the list done an upgrade from hammer (something later than > 0.94.6) to jewel with a cache tier configured? i tried doing one last week > and had a hiccup with it. i'm curious if others have been able to > successfully do the upgrade and, if so, did they take any extra steps > related to the cache tier? > It would be extremely helpful for everybody involved if you could be bit more specific than "hiccup". I've upgraded one crappy test cluster from hammer to jewel w/o issues and am about to do that on a more realistic, busier test cluster as well. OTOH, I have no plans to upgrade my production Hammer cluster with a cache tier at this point. > there has also been some talk here about how rare or unsupported cache > tiering is. i've heard some say that its use is uncommon but i am not sure > if that is the cases. are there many on the list using cache tiering? in > particular, with rbd volumes and clients? what are some of the the > communities' experiences there? > Quite a few people here seem to use cache-tiers, if understood and configured well with great success it seems. Christian -- Christian Balzer Network/Systems Engineer chibi at gol.com Global OnLine Japan/Rakuten Communications http://www.gol.com/
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