| 2024-05-07 19:35:17 |
Bryan Neumann |
description |
Overview
PowerMax allows volumes to be added, removed, or suspended without affecting the state of the SRDF/A or SRDF/Metro session or requiring that other volumes in the session be suspended. Known as --exempt for symcli and editStorageGroupActionParam in the PowerMax REST API, this capability is available for an SRDF group supporting an active SRDF/A session or an active SRDF/Metro session.
The PowerMax Cinder driver currently uses the exempt flag when volumes are added to SRDF groups, but not when volumes are removed. This incurs an unnecessary performance penalty.
Expectation
The exempt flag should be used for volume removal as well as volume addition. |
This should have been filed as a blueprint. https://blueprints.launchpad.net/cinder/+spec/dell-powermax-srdf-exempt supersedes this ticket. |
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