EMC VNX Direct Driver Update
Spec for blueprint emc-vnx-direct-driver-juno-update Change-Id: Ief60bc842dcf1fddf37ac78d11f8696923a74423
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Jeegn Chen
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specs/juno/emc-vnx-direct-driver-juno-update.rst
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specs/juno/emc-vnx-direct-driver-juno-update.rst
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..
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This work is licensed under a Creative Commons Attribution 3.0 Unported
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License.
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http://creativecommons.org/licenses/by/3.0/legalcode
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==========================================
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EMC VNX Direct Driver Update
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==========================================
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Include the URL of your launchpad blueprint:
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https://blueprints.launchpad.net/cinder/+spec/emc-vnx-direct-driver-juno-update
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Add more functionalities into EMC VNX Direct Driver.
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Problem description
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===================
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The following new functionalities will be added in this update:
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* FC Support
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* FC Auto Zoning Support
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* Read-only Volume Support
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* External Volume Management Suppport
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* Advance LUN Features
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* Compression Support
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* Deduplication Support
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* FAST VP Support
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* FAST Cache Support
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* Initiator Auto Registration
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* Storage Group Auto Deletion
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* iSCSI Target Portal Selection
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* Multiple Authentication Type Support
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* Security File Support
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* Storage-Assisted Retype
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* Storage-Assisted Volume Migration
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* SP Toggle for HA
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Proposed change
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===============
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FC Support
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Add a new driver class.
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FC Auto Zoning Support
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Add logic in intialize_connection() and terminate_connection() according
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to blueprint
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https://blueprints.launchpad.net/cinder/+spec/cinder-fc-zone-manager and
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the fix for bug https://bugs.launchpad.net/cinder/+bug/1308318.
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Read-only Volume Support
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Add logic in intialize_connection() according to blueprint
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https://blueprints.launchpad.net/cinder/+spec/read-only-volumes.
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External Volume Management Suppport
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Implement driver API according to blueprint
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https://blueprints.launchpad.net/cinder/+spec/add-export-import-volumes.
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Advance LUN Features
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Add logic to support more extra spec key-value pairs
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Initiator Auto Registration
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Do logic in intialize_connection() to do EMC-specific initiator
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registration.
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Storage Group Auto Deletion
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Add resource recycling logic in intialize_connection()
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iSCSI Target Portal Selection
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Add logic in intialize_connection() to select target portal that is
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pingable from the initiator.
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Multiple Authentication Type Support
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Add new option in configuration file so that the driver can use different
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authentication types that have been supported by VNX arrays.
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Security File Support
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Add a new option in configuration file so that encrypted credentials can
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be used instead of credentials in plain text.
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Storage-Assisted Retype
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Implement driver API according to blueprint
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https://blueprints.launchpad.net/cinder/+spec/volume-retype.
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Storage-Assisted Volume Migration
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Implement migrate_volume() so that VNX native LUN Migration is leveraged.
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SP Toggle for HA
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Original implementation only send management requests to one SP. Since VNX
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arrays have dual SPs, the driver is enhanced to send requests to the other
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SP is one is down.
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Alternatives
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------------
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None
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Data model impact
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-----------------
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None
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REST API impact
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---------------
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None
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Security impact
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---------------
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None
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Notifications impact
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--------------------
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None
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Other end user impact
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---------------------
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None
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Performance Impact
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------------------
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None
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Other deployer impact
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---------------------
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None
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Developer impact
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----------------
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None
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Implementation
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==============
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Assignee(s)
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-----------
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Primary assignee:
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jeegn-chen
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Other contributors:
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None
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Work Items
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----------
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* Implement driver changes
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Dependencies
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============
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* NaviSecCLI (a.k.a. Navisphere CLI)
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* For Ubuntu x64, DEB is available in
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* EMC OpenStack Github: https://github.com/emc-openstack/naviseccli
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* For all other variants of Linux, Navisphere CLI is available at
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* Downloads for VNX2 Series:
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https://support.emc.com/downloads/36656_VNX2-Series or
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* Downloads for VNX1 Series:
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https://support.emc.com/downloads/12781_VNX1-Series.
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Testing
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=======
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Tempest test will used to qualify the driver update.
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Documentation Impact
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====================
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Need to update EMC VNX Direct Driver section of OpenStack Configuration
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Reference.
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References
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==========
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None
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