nova list用於在shell互動模式下檢視當前使用者存在的例項數目，但是這裡仍然要注意的地方：
沒有引數的nova list
[root@node-5 newstest-master]# nova list +--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+ | b3738b0a-8a27-4720-8364-503543fbb13c | test2 | ACTIVE | None | Running | network_20=10.10.0.3; test_pool=10.20.0.3; novanetwork=10.0.0.2 | +--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+ [root@node-5 newstest-master]# nova list
有引數nova list --all-tenants 1
[root@node-5 newstest-master]# nova list --all-tenants 1 +--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+ | ID | Name | Status | Task State | Power State | Networks | +--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+ | 957b3fd5-0526-4e23-a4f6-bbeb5a9cd734 | 1 | ACTIVE | None | Running | network_20=10.10.0.4; test_pool=10.20.0.4; novanetwork=10.0.0.4 | | b3738b0a-8a27-4720-8364-503543fbb13c | test2 | ACTIVE | None | Running | network_20=10.10.0.3; test_pool=10.20.0.3; novanetwork=10.0.0.2 | +--------------------------------------+-------+--------+------------+-------------+-----------------------------------------------------------------+
從這裡我們可以看到，如果不指定引數要求獲取全部的例項列表，那麼當前獲得例項列表將使當前的專案的list.