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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Removing the Ceph OSD
Before proceeding with the cluster size reduction, scaling it down, or removing the OSD node, make sure that the cluster has enough free space to accommodate all the data present on the node you are planning to move out. The cluster should not be at its full ratio, which is the percentage of used disk space in an OSD. So, as best practice, do not remove the OSD or OSD node without considering the impact on the full ratio. At the current time of writing this book Ceph-Ansible does not support scaling down of the Ceph OSD nodes in a cluster and this must be done manually.
- As we need to scale down the cluster, we will remove ceph-node4 and all of its associated OSDs out of the cluster. Ceph OSDs should be set out so that ...
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I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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