This document provides an update on the OpenStack Cinder Liberty release. It outlines that 19 new volume drivers were added with CI testing, 29 blueprints and 134 bug fixes were completed. New features discussed include nested quotas to manage descendant project quotas, force detach to safely detach stuck volumes, a generic image cache to speed up volume creation from images, and improved migrations. It encourages reviewing the full specifications and provides contacts for more information.

1. OpenStack Cinder
Liberty Update
Mike Perez
Cinder PTL
@thingee

2. Kilo
⑉ 45 volume drivers with CI
⑉ 25 volume drivers removed with no CI
⑉ 75 blueprints done
⑉ 353 bug fixes done
⑉ Release note items include documentation
for new features! Check it out!
http://bit.ly/1ejTj6Y

3. Liberty So Far...
⑉ 19 new volume drivers all with CI’s!
⑉ 29 blueprints done
⑉ 134 bug fixes done

4. Nested Quotas
⑉ Hierarchy Quotas
⑉ Have project admins manage quota of
descendant projects.
⑉ Read full spec at http://bit.ly/1LTVR74
Worked on by: Vilobh Meshram

5. Force Detach
⑉ A solution to “my volume is stuck in the
attaching state”, FINALLY.
⑉ Operators and end users can safely detach
stuck volumes.
⑉ No fussing with the database!
⑉ Read full spec at http://bit.ly/1T4uStG
Worked on by: Scott DAngelo

6. Generic Image Cache
⑉ Popular images are cached, not copied over
the network like today.
⑉ Volumes created faster from images!
⑉ All volume drivers can take advantage of
this!
⑉ Read full spec at http://bit.ly/1BWJSFD
Worked on by: Patrick East

7. Rolling Upgrade pt 2
⑉ From Kilo onwards, we allow schema
upgrades to be independent of services.
⑉ Cross project initiative in OSLO.
⑉ In Liberty, we will have RPC compatibility.
⑉ Upgrade your Cinder services in any order
like you just don’t care!
⑉ Read full spec at http://bit.ly/1ei8RZ3
Worked on by: Thang Pham

8. Capabilities
⑉ Cinder client can tell you what your storage
backend can do!
⑉ Clients like Horizon can use this information
to provide what you can put in an extra spec.
Less error prone!
⑉ Read full spec at http://bit.ly/1LCeRct
Worked on by: Mike Perez

9. Improving migrations
⑉ Today, operators migrate an available volume from
backend to backend, or same backend pool to pool.
⑉ Sometimes it’ll take a while. Progress status
coming soon!
⑉ Operator can force migrate. Marks a volume in
maintenance state and can’t be used by end user.
⑉ Read full spec at http://bit.ly/1Jw9xYG
Worked on by: Vincent Hou

10. Etc...
⑉ Improvements with Nova’s use of Cinder’s
API and error handling.
⑉ Python 3 ready.

11. Thank you!
IRC: #openstack-cinder