Hi all again, I'm not sure if the topic was already discussed here, anyway I'll go ahead, sorry if it is a duplication. I was wondering, in case of layered devices, what would be the best layer to use as backing device. Specifically, I've two HDDs in RAID10 (Linux md driver, software RAID), on top of the RAID there are LV partitions. Obviously, it would be possible to use the RAID components, i.e. the HDDs as backing devices, or the RAID itself, or the LV partitions (/dev/mapper/VolXXX). My guess would be to use the LV partitions, since these are closer to the filesystem, but, maybe, using the RAID or even the single HDDs could be better. Any idea on the topic? Suggestions & motivations? Thanks a lot in advance, 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