On Tue, Nov 14, 2017 at 12:00 PM, Joe Thornber <thornber@xxxxxxxxxx> wrote: > > I'm not sure what's going on here. Would you mind sending me the > metadata please? Either a cache_dump of it, or a copy of the metadata > dev? I'd like to create a cache dump, but I'm not very experienced with this stuff. I do: $ cache_dump /dev/vg_zfs/lv_zfsdisk |less syscall 'open' failed: Device or resource busy Note: you cannot run this tool with these options on live metadata. Which is what I feared/expected. However, after doing $ lvchange -an vg_zfs/lv_zfsdisk the device disappears, and I cannot run cache_dump on it as well. So how do I make it not live, while still visible? -- dm-devel mailing list dm-devel@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/dm-devel