> Hence, looking for a non-writeback SSD cache which can be transparently > added and removed from the system. Removing / Adding a caching device within Bcache can be done on a live system, so long as a backing device is created before hand. This was explained here: http://comments.gmane.org/gmane.linux.kernel.bcache.devel/1886 > Doesn't look like it's possible from the docs; has there been any work on > this -- a different 'glue' or front end? Is this what you are looking for? https://github.com/g2p/blocks This should keep any data on the backing device without the need to format. Hope that helps, -Adam -- Adam Brenner Computer Science, Undergraduate Student Donald Bren School of Information and Computer Sciences Research Computing Support Office of Information Technology http://www.oit.uci.edu/rcs/ University of California, Irvine www.ics.uci.edu/~aebrenne/ aebrenne@xxxxxxx On Thu, Aug 15, 2013 at 2:11 PM, Mark Hills <mark@xxxxxxxxxxx> wrote: > 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 -- 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
