Quite possibly missed the bl**din' obvious here... so please point to RTFM if I missed it... Question: Is it possible to have a subdirectory say "usenet" set to be cache only whilst the parent "data" is cache -> array? I was hoping there was something like an override flag per directory / tree Motivation: I have nearly 4TB of unused mirrored cache and looking for ways to reduce disk noise / use. arr stack is using the trash guides / spaceinvader layout so if I can keep that and still achieve the above it would be a bonus! Thanks in advance.