43d851abba
This patch adds support for trim/discard to 3 Dell EMC drivers: - PowerStore - PowerMax - PowerFlex Support is added to report this capability to both Nova, via the 'discard' value in connection properties, as well as internally to Cinder, via the 'sparse_copy_volume' driver capability. PowerStore and PowerMax only support thin volumes, so they will always report the trimming capability, but the PowerFlex also supports thick volumes, so it will only be returned for thin volumes, and following vendor's recommendation [1] it will not be returned for volumes that have snapshots. SysAdmins can force all volumes to return discard capabilities for Nova with the ``report_discard_supported`` configuration option. [1]: https://docs.delltechnologies.com/bundle/READY_NODE_AMS_DG/page/GUID-8E6676C1-425A-4D51-8F59-1A92DE4F6638.html Change-Id: Ib119fd689545bdb636a4844c6125aec7c3c24b96
OpenStack Cinder
OpenStack Cinder is a storage service for an open cloud computing service.
You can learn more about Cinder at:
Getting Started
If you'd like to run from the master branch, you can clone the git repo:
git clone https://opendev.org/openstack/cinder
If you'd like to contribute, please see the information in CONTRIBUTING.rst
You can raise bugs on Launchpad