Hi developers, it mentioned in the source code that OPTION(filestore_zfs_snap, OPT_BOOL, false) // zfsonlinux is still unstable. So if we turn on filestore_zfs_snap and neglect journal like btrf, it will be unstable? As is mentioned on the "zfs on linux community", It is stable enough to run a ZFS root filesystem on a GNU/Linux installation for your workstation as something to play around with. It is copy-on-write, supports compression, deduplication, file atomicity, off-disk caching, (encryption not support), and much more. So it seems that all features are supported except for encryption. Thus, I am puzzled that the unstable, you mean, is ZFS unstable itself. Or it now is already stable on linux, but still unstable when used as ceph FileStore filesystem. If so, what will happen if we use it, losing data or frequent crash? Nicheal -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html