January 2019
Intermediate to advanced
606 pages
15h 1m
English
book
Ceph: Designing and Implementing Scalable Storage Systems
by Michael Hackett, Vikhyat Umrao, Karan Singh, Nick Fisk
Content preview from Ceph: Designing and Implementing Scalable Storage Systems
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Upgrading an OSD in your test cluster
Make sure that your Ceph cluster is in full health by checking with the ceph -s command. We will be upgrading OSD by first removing it from the cluster and then letting Ceph recover the data onto the new BlueStore OSD. By taking advantage of this hot maintenance capability in Ceph, you can repeat this procedure across all the OSDs in your cluster.
In this example, we will remove osd.2, which is residing on the /dev/sdb disk on the OSD node, by performing the following steps:
- Use the following command:
sudo ceph osd out 2
The preceding command gives the following output:
- Log into the OSD node that contains ...
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.