红帽全球峰会7.311.8. lease
虚拟机/模板租用所在存储域的引用。
使用租用运行的虚拟机需要检查运行时不会由另一主机获取租期，从而防止此虚拟机的另一个实例在另一主机上运行。这可防止高可用性虚拟机中的脑裂。模板也可为租用定义存储域，以便从该模板创建虚拟机，预先配置此存储域作为租用位置。
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