Chapter 2. Overview

Satellite integration

The Red Hat Ceph Storage version 1.3.1 allows users to host package repositories in the Red Hat Satellite 6 server and also manage entitlements in Satellite. Once you registered your Ceph nodes with Satellite, you can deliver upgrades to the cluster without allowing a direct connection to the Internet, as well as search and view errata applicable to the cluster nodes. For detailed information see the How to Register Ceph with Satellite article on the Customer Portal.

Configurable "suicide" option

The suicide timeout option is now configurable. The option ensures that poorly behaving OSDs self-terminate instead of running in degraded states and slowing traffic.

New Foreman-based installer added as a Technology Preview

The rhcs-installer package provides a new Foreman-based installer. This update adds the new rhcs-installer package to Red Hat Ceph Storage as a Technology Preview.

New "osd crush tree" command

A new command, osd crush tree, has been added. The command lists OSDs in a particular bucket.

Use "recovering" instead of "recovery" when listing PGs

The pg ls, pg ls-by-pool, pg ls-by-primary, and pg ls-by-osd commands no longer take the recovery argument. Use the recovering argument instead to include also the recovering placement groups (PG).

Upstart respawn limit changes

On Ubuntu, the Upstart respawn limit has been changed from 5 restarts in 30 seconds to 3 restarts in 30 minutes for the Ceph OSD and monitor daemons.

Tracing with the RBD replay feature

The RBD Replay toolkit provides utilities for capturing and replaying RADOS Block Device (RBD) workloads. It uses the Linux Trace Toolkit: next generation (LLTng) tracing framework. For detailed information, see the Tracing RADOS Block Device (RBD) Workloads with the RBD Replay Feature article on the Customer Portal.

No need to disable "requiretty" for root

The Ceph Object Gateway no longer requires the requiretty setting to be disabled in the sudoers configuration for the root user.

New "rgw_user_max_buckets" option

Administrators of the Ceph Object Gateway can now configure the maximum number of buckets for users by using the new rgw_user_max_buckets option in the Ceph configuration file.