For some time I've been hoping to use SSD caching, but cannot reasonably accomodate the superblock and new partition format. Hence, looking for a non-writeback SSD cache which can be transparently added and removed from the system. Of course it's at the expense of losing the cache content each time the cache is attached -- but for many useful cases and workloads this is absolutely ok, eg. workstations (using suspend-RAM) or full-time servers. Doesn't look like it's possible from the docs; has there been any work on this -- a different 'glue' or front end? IIRC the first public announcement of bcache did something similar -- hooked into the system by re-routing the I/O requests to a specific disk. Tho I did not test it, it looks like DragonFly BSD has what I'm looking for, as part of its "swapcache" feature -- looks very easy to set up: http://www.dragonflybsd.org/docs/howtos/swapcache/ Thanks -- Mark -- 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
