Ceph v12.1.4 发布了。这是 Luminous 最后一个候选版本，下次将发布长期稳定版 Ceph Luminous（v12.2.0）。 自 Kraken（v11.2.z）和 Jewel（v10.2.z）以来，发生了重大变化，主要更新内容如下：
Ceph now has a simple, built-in web-based dashboard for monitoring cluster status.
The new BlueStore backend for ceph-osd is now stable and the
new default for newly created OSDs. BlueStore manages data stored by each OSD by directly managing the physical HDDs or
SSDs without the use of an intervening file system like XFS. This provides greater performance and features. See Storage Devices and BlueStore Config Reference.
BlueStore supports full data and metadata checksums of all data stored by Ceph.
Erasure coded pools now have full support for overwrites, allowing them to be used with RBD and CephFS.