>> wait, the cache DEVICE for bcache is a Btier device composed of an SSD >> and RAM? So in effect you want btier to move the really hot blocks >> within the bcache cache device into RAM? So effectively bcache metadata >> and any really hot blocks will live in RAM and the rest of the > 'read' >> cache will sit on the SSD. > > Exactly! Apologies if that wasn't clear in the first place but that > describes 100% what we're currently testing. you REALLY want to check with Kent as to what happens when the bcache caching device (and any meta-data it stores there) routinely get blown away or run a high risk of experiencing sudden destruction. I'm afraid this is not a test case that has undergone enough scrutiny. -- To unsubscribe from this list: send the line "unsubscribe linux-bcache" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
