source /root/openrc
查看keystone租户
keystone tenant-list
查看某租户的配额及使用情况
nova absolute-limits –-tenant ac9e6a9f-58c(租户ID)（输出的内容不准确）
nova quota-show --tenant 94aadbb947(租户ID)
nova-manage project quota 94aadbb947d(租户ID)
mysql> select project_id,resource,hard_limit from quotas where project_id = ‘94aadbb(租户ID)‘;
mysql> select project_id,resource,in_use from quota_usages where project_id = ‘94aadbb(租户ID)‘;
原文：http://www.cnblogs.com/cmss/p/4773197.html