Add an iSCSI volume driver for Nimble Storage

Registered by Jay Wang on 2013-10-11

The purpose of this blueprint is to add an iSCSI Cinder volume driver for Nimble Storage. It will include the minimum set of features required by the Icehouse release.

Nimble Storage technology:
Nimble Storage is hybrid storage combining both flash SSD and near-line SAS disks. The architecture is based on CASL (Cache Accelerated Sequential Layout) where random writes are coalesced in NVRAM + flushed to disks sequentially, with the flash/SSD as read acceleration cache. CASL architecture provides non-disruptive upgrade for compute (processer/memory), cache (flash SSDs), capacity (disk shelves) as well as scale-out where up to four nodes of Nimble controllers can be clustered.

Cinder volume driver:
The cinder volume driver for Nimble Storage will be based on the iSCSI protocol, allowing all minimal required operations in Icehouse release to work with Nimble Storage.

Blueprint information

Status:
Complete
Approver:
John Griffith
Priority:
Low
Drafter:
None
Direction:
Approved
Assignee:
Jay Wang
Definition:
Approved
Series goal:
Accepted for juno
Implementation:
Implemented
Milestone target:
milestone icon 2014.2
Started by
John Griffith on 2014-06-10
Completed by
Russell Bryant on 2014-07-23

Related branches

Sprints

Whiteboard

Gerrit topic: https://review.openstack.org/#q,topic:bp/nimble-iscsi-volume-driver,n,z

Addressed by: https://review.openstack.org/73446
    Adds cinder volume driver support for Nimble Storage.

Addressed by: https://review.openstack.org/82670
    Add unit test to the driver. Implement required clone volume feature. Use cinder units for GiB size.

Updated milestone to juno-1 for consideration.

The driver has passed the cinder driver certification. The result is posted at:
https://bugs.launchpad.net/cinder/+bug/1308624

(?)

Work Items

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