- Less known Solaris Features: CacheFS – Joerg Moellenkamp at c0t0d0s0.org offers another installment of his excellent Less known Solaris Features series. Of note: “In the recent days there was some discussion about the declaration of the End-of-Feature status for CacheFS which will lead to the announcement of the removal of CacheFS. After a few days of discussion the ARC decided in favour of the removal.” While I’ve never personally used CacheFS – and see no use case for it on the horizon – I’m not thrilled to see it slated for removal as it does sound like it serves an important role. Perhaps ADM or SAM-QFS will become more general to support this style of HSM as well in the future.