PowerFlex 在 OpenStack 中将卷连接到多个主机 （--multi-attach）

Summary: 尝试使用 ScaleIO 作为后端创建可多连接的 OpenStack Cinder 卷（使用 --multi-attach 开关）失败。

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Symptoms

情况说明

用户尝试使用 OpenStack Cinder 创建 ScaleIO 卷 --multi-attach 开关。例如：

openstack volume create --size 16 --multi-attach testvol

症状

OpenStack Cinder 在 cinder-scheduler.log：

DEBUG cinder.scheduler.filters.capabilities_filter [req-1f20b775-4ce2-4f97-a0cf-7326aed3e6674a018cd43cde479e8f18bb7e11c157ee d0ad4f70bec34caa8900bac2fceb6b7d - - -] Host doesn't provide capability 'multiattach' _satisfies_extra_specs /usr/lib/python2.7/dist-packages/cinder/scheduler/filters/capabilities_filter.py:54 
DEBUG cinder.scheduler.filters.capabilities_filter [req-1f20b775-4ce2-4f97-a0cf-7326aed3e6674a018cd43cde479e8f18bb7e11c157ee d0ad4f70bec34caa8900bac2fceb6b7d - - -] host 'hyper-converged001@scaleio#default:default': free_capacity_gb: 24531, pools: None fails resource_type extra_specs requirements host_passes /usr/lib/python2.7/dist-packages/cinder/scheduler/filters/capabilities_filter.py:72

 

影响

在 OpenStack 环境中，不能将同一 ScaleIO 卷连接到多个主机。

Cause

ScaleIO OpenStack 驱动程序当前不支持 Cinder --multi-attach 选项，因为 OpenStack，特别是 Nova，尚未完全支持该功能。

在驱动程序的未来版本中可能会提供支持。

Resolution

创建单独的卷并将每个卷连接到主机。

 

Article Properties
Article Number: 000158996
Article Type: Solution
Last Modified: 14 Aug 2025
Version:  5
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