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Luca Dell'Oca Principal Cloud Architect @Veeam
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Virtual To The Core

Virtualization blog, the italian way.

Tag: luminous

Tech

The new dashboard in Ceph Luminous

Luca Dell'Oca, October 31, 2017October 30, 2017

Dashboards in Ceph have always been a bit of a problem. In the past, I tried first to deploy and run Calamari, but it was a complete failure. I talked about my disgraces in this blog post, and there I also suggested a way better solution: Ceph Dash. But now with the release of Luminous, Ceph is trying again to have its own dashboard. Will it be good this time?

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Tech

How to migrate Ceph storage volumes from Filestore to Bluestore

Luca Dell'Oca, October 24, 2017October 21, 2017

In my two previous posts about the new Ceph 12.2 release, named Luminous, I first described the new Bluestore storage technology, and I then upgraded my cluster to the 12.2 release. By default, Ceph can run both OSD using Filestore and Bluestore, so that existing clusters can be safely migrated to Luminous. On the long run, however, users who have previously deployed FileStore are likely to want to transition to BlueStore in order to take advantage of the improved performance and robustness. However, an individual OSD cannot be converted in place. The “conversion” is, in reality, the destruction of a Filestore and the creation of a Bluestore OSD, while the cluster takes care every time of evacuating the old OSD, replicate its content into other OSDs, and then rebalance the content once the new Bluestore is added to the cluster.

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Tech

How I upgraded my Ceph cluster to Luminous

Luca Dell'Oca, October 17, 2017October 16, 2017

After the release of the latest version of Ceph, Luminous (v12.2.x), I read all the announcements and blogs, and based on the list of new interesting features as Bluestore, I decided to upgrade the Ceph cluster running in my lab. This blog shows you the step by step procedure to upgrade a Ceph Jewel cluster to Luminous.

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Analysis

The new Ceph 12.2 Luminous and its BlueStore storage backend

Luca Dell'Oca, October 4, 2017October 4, 2017

With the release of Ceph Luminous 12.2 and its new BlueStore storage backend finally declared stable and ready for production, it was time to learn more about this new version of the open-source distributed storage, and plan to upgrade my Ceph cluster.

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