Issued:
2015-02-09
Updated:
2015-02-09

RHEA-2015:0151 - openstack-cinder enhancement advisory

Synopsis

openstack-cinder enhancement advisory

Type/Severity

Product Enhancement Advisory

Topic

Updated OpenStack Block Storage packages that resolve various issues are now available for Red Hat Enterprise Linux OpenStack Platform 6.0 (Juno).

Description

Red Hat Enterprise Linux OpenStack Platform provides the facilities for building a private or public infrastructure-as-a-service (IaaS) cloud running on commonly available physical hardware. This advisory includes packages for:

  • OpenStack Block Storage service

OpenStack Block Storage (cinder) manages block storage mounting and the presentation of such mounted block storage to instances. The back-end physical storage can consist of local disks, Fiber Channel, iSCSI, and/or NFS mounts attached to Compute nodes. In addition, Block Storage supports volume backups, and snapshots for temporary save and restore operations. Programmatic management is available through the Block Storage service’s API.

With this update, the Block Storage packages are now re-based to upstream version 2014.2.1. This applies several fixes and implements some notable enhancements, including:

  • The Block Storage service now features a new volume number (count) weigher. This adds more flexibility in volume scheduling policy, as it allows you to configure volume distribution based on the number of volumes per back-end (rather than available back-end space). (BZ#1108992)

  • The Block Storage service now allows you to set Consistency Groups. With this, you can group multiple volumes together as a single entity; this, in turn, allows you to perform operations on multiple volumes (for example, create snapshots) at once, rather than individually. (BZ#1101378)

  • You can now configure the openstack-cinder-volume service to limit I/O bandwidth when copying data between volumes. This allows you to throttle the load placed on the openstack-cinder-volume node for long-running I/O copy operations. To use this feature, configure the 'volume_copy_blkio_cgroup_name' and 'volume_copy_bps_limit' settings in /etc/cinder/cinder.conf of the openstack-cinder-volume node accordingly. (BZ#1081834)

  • Some Block Storage drivers now support the ability to manage the storage back end's replication. (BZ#1105411)

Solution

Before applying this update, ensure all previously released errata relevant to your system have been applied.

Red Hat Enterprise Linux OpenStack Platform 6 runs on Red Hat Enterprise Linux 7.0.

This update is available through 'yum update' on systems registered through Red Hat Subscription manager. For more information about Red Hat Subscription manager, refer to:

This content is not included.https://access.redhat.com/documentation/en-US/Red_Hat_Subscription_Management/1/html/RHSM/index.html

Red Hat Enterprise Linux OpenStack Platform 6 documentation is available at:

This content is not included.https://access.redhat.com/site/documentation/en-US/Red_Hat_Enterprise_Linux_OpenStack_Platform

Documents include:

  • The Red Hat Enterprise Linux OpenStack Platform 6 Release Notes contain the channels required for Red Hat Enterprise Linux OpenStack Platform 6, including which channels need to be enabled and disabled.

  • The Red Hat Enterprise Linux OpenStack Platform 6 Technical Notes contain Technology Previews, Recommended Practices, and Known Issues.

Affected Products

ProductVersionArch
Red Hat OpenStack6.0x86_64

Updated Packages

  • openstack-cinder-2014.2.1-1.el7ost.noarch.rpm
  • python-cinderclient-doc-1.1.1-1.el7ost.noarch.rpm
  • python-cinderclient-1.1.1-1.el7ost.noarch.rpm
  • openstack-cinder-doc-2014.2.1-1.el7ost.noarch.rpm
  • python-cinder-2014.2.1-1.el7ost.noarch.rpm

Fixes

CVEs

(none)

References

(none)

Additional information