sstrncpy(vtmp->vlist.plugin, "ceph", sizeof(vtmp->vlist.plugin));
sstrncpy(vtmp->vlist.plugin_instance, io->d->name, sizeof(vtmp->vlist.plugin_instance));
sstrncpy(vtmp->vlist.plugin, "ceph", sizeof(vtmp->vlist.plugin));
sstrncpy(vtmp->vlist.plugin_instance, io->d->name, sizeof(vtmp->vlist.plugin_instance));