Hi,
I would like to understand Ceph better especially the usable storage size in a 3:2 ratio. On a customer system we have this total Ceph usage:
![CleanShot 2025-02-04 at 13.28.50@2x.png]( "CleanShot 2025-02-04 at 13.28.50@2x.png")
The Ceph calculator tells me that I could only use 10.24TB in this configuration (3 nodes, 15,36TB per node, 3 replicas):
![CleanShot 2025-02-04 at 13.35.05@2x.png]( "CleanShot 2025-02-04 at 13.35.05@2x.png")
Does this mean that we're already in the "unsure area" on the customer example above? The OSD Nearfull Ratio revommended here is 0.67 - meaning should get worried as soon as the usage is hitting 67%...
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I would like to understand Ceph better especially the usable storage size in a 3:2 ratio. On a customer system we have this total Ceph usage:
The Ceph calculator tells me that I could only use 10.24TB in this configuration (3 nodes, 15,36TB per node, 3 replicas):
Does this mean that we're already in the "unsure area" on the customer example above? The OSD Nearfull Ratio revommended here is 0.67 - meaning should get worried as soon as the usage is hitting 67%...
Read more