目录

Oversubscription in thin provisioning

• Cinder spec: Over Subscription in Thin Provisioning https://review.openstack.org/#/c/129342/12/specs/kilo/over-subscription-in-thin-provisioning.rst
• cinder bp: Over subscription in thin provisioning https://blueprints.launchpad.net/cinder/+spec/over-subscription-in-thin-provisioning

所谓 Oversubscription in thin provisioning，就相当于是 Thin Provisioning Storage Pool 的超分比限制，防止 Thin Provisioning Storage Pool 被无限放大。对应的配置项是 max_over_subscription_ratio，默认值为 20.0。e.g.

[lvm-1]
volume_group = centos
volume_driver = cinder.volume.drivers.lvm.LVMVolumeDriver
volume_backend_name = lvm-1
iscsi_helper &#
  

 

  
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文章来源: is-cloud.blog.csdn.net，作者：范桂飓，版权归原作者所有，如需转载，请联系作者。

原文链接：is-cloud.blog.csdn.net/article/details/100934220