On Thu, Aug 08, 2013 at 02:17:24PM +0200, Josep Lladonosa wrote: > Hello, > > I am running a root file system (/) in a bcache set (/dev/sda3 as the > backing device and /dev/sdb -the SSD- as the caching device). > > I want to replace the caching device with another hardware. > > The question is, which is the best procedure to replace it? I was thinking > about: > > - turn off computer. > - replace SSD with the new one. > - turn on computer. > > It seems to me very simple, perhaps too much. Does it need any other > step? Reattaching? Detach the bcache device from the cache set first - _definitely_ do that first if you're using it in writeback mode echo 1 > /sys/block/bcache0/bcache/detach Unregistering the cache set detaches it from every attached device too: echo 1 > /sys/fs/bcache/<cache set>/unregister -- 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
