On Mon, Oct 21, 2013 at 02:34:35PM +0200, Rolf Fokkens wrote: [...] > I can imagine that one may wish to (b)cache one specific LV and not the > other(s) in the same VG in which case bcache is to be used on top of the > specific LV. I think in general however it's best to use LVM on top of > bcache because it's closer to the (slow) storage you want to accelerate. Interesting, then logic would suggest to (b)cache the components of the RAID. Of, even better, to (b)cache /dev/sd[ab] (in this case) and cover, in this way, everything. > So I guess it depends on your requirements. It's a desktop PC, I notice that performances mainly depend on the storage subystem, the rest (CPU, memory, GPU) is fine for me. > I'm not sure if there are specific technical arguments in favour of one or > the other. But I can say I've seen both work during testing. Thanks, bye, -- piergiorgio -- 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
