在 OpenStack Horizon 仪表板中，NetApp Cinder 后端的订阅比显示不一致

适用于

• 带 NetApp 后端的 Cinder（cinder-netapp）

问题描述

当使用 NetApp 作为 OpenStack Cinder 的后端时，Horizon 仪表板在不同的计算节点（主机）上显示相同 NetApp 后端卷不一致的订阅比率。每个计算节点显示不同的订阅比率，即使它们共享相同的存储后端。

日志输出示例：

Each controller node (where NetApp volume is visible) shows a different subscription value for the same backend volume. ... Successful volume creation: ...Consumed 600GB from backend: host 'hyd03ctrl02@cinder-netapp#OS_G01_NA01_POOL1': free_capacity_gb: 372.78, total_capacity_gb: 972.8, allocated_capacity_gb: 600, max_over_subscription_ratio: 1.0, ... ... Failed volume creation: ...Insufficient free space for thin provisioning. The ratio of provisioned capacity over total capacity 1.13 has exceeded the maximum oversubscription ratio 1.00 on host hyd03ctrl03@cinder-netapp#OS_G01_NA01_POOL1.