These two blocks exist in different storage backends' createVol implementations: if (vol->target.format != VIR_STORAGE_FILE_RAW) { virReportError(VIR_ERR_NO_SUPPORT, "%s", _("only RAW volumes are supported by this storage pool")); return -VIR_ERR_NO_SUPPORT; } if (vol->target.encryption != NULL) { virReportError(VIR_ERR_CONFIG_UNSUPPORTED, "%s", _("storage pool does not support encrypted " "volumes")); return -1; } My hunch is that the second example (VIR_ERR_CONFIG_UNSUPPORTED and returning -1) is correct in both of these cases. Related... Which backends should be restricted to only raw? That code is from storage_backend_rbd.c, which seems to be the only one restricted in that way. But does it make sense to allow !raw on LVM (or ZFS), for example? Whatever the correct answer, I'm looking to submit one or more patches. -- Richard -- libvir-list mailing list libvir-list@xxxxxxxxxx https://www.redhat.com/mailman/listinfo/libvir-list