$ etcdctl snapshot save <snapshot_file> --endpoints=<endpoint>:<port>
# Instead of <endpoint> you can substitute a hostname or an IP
$ etcdctl snapshot save snapshot.db --endpoints=etcd1:2379
$ etcdctl snapshot save snapshot.db --endpoints=192.168.100.88:2379
# View that the snapshot was successful
$ etcdctl snapshot status snapshot.db --write-out=table
+----------+----------+------------+------------+
| HASH | REVISION | TOTAL KEYS | TOTAL SIZE |
+----------+----------+------------+------------+
| b89543b8 | 40881777 | 54340 | 106 MB |
+----------+----------+------------+------------+ |