Pike Series Release Notes¶
This release corrects a problem with the fix for Bug #1823200 in the previous release. If you are running OpenStack on Python 3, you should not be impacted by this bug. If you are not using Dell EMC VxFlex OS (ScaleIO) Storage as a backend for Cinder, you do not need to upgrade to this release.
Dell EMC VxFlex OS driver: This release corrects an issue where the fix for Bug #1823200 did not run correctly when using Python 2.7. If you are interested in this release because of OSSN-0086, be aware that you must also deploy a configuration file on compute nodes, cinder nodes, and anywhere you would perform a volume attachment in your deployment. Please see the release notes for the previous release for details.
Under certain conditions detaching a multipath device may result in failure when flushing one of the individual paths, but the disconnect should have succeeded, because there were other paths available to flush all the data.
The multipath disconnect mechanism is now more robust and will only fail when disconnecting if multipath would lose data.
Support for setting the scan mode on the Open-iSCSI initiator. If installed iscsiadm supports this feature OS-Brick will set all it’s new sessions to manual scan.
New parameters on disconnect_volume named force and ignore_errors can be used to let OS-Brick know that data loss is secondary to leaving a clean system with no leftover devices. If force is not set, or set to False, preventing data loss will take priority. Currently only iSCSI implements these new parameters.
The direct use of the encryption provider classes such as os_brick.encryptors.luks.LuksEncryptor continues to be deprecated and will now be blocked in the Queens release of os-brick. The use of out of tree encryption provider classes also continues to be deprecated and will also be blocked in the Queens release of os-brick.
On systems with scan mode support on open-iSCSI we’ll no longer see unwanted devices polluting our system due to the automatic initiator scan or to AEN/AER messages from the backend.
iSCSI connect mechanism refactoring to be faster, more robust, more reliable.
iSCSI disconnect refactoring improves reliability, speed, and thoroughness on leaving a cleaner system after disconnection.