ceph / ceph-medic

find common issues in ceph clusters
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checks: osd `osd_pool_default_min_size=1` should warn about pitfalls #11

Closed alfredodeza closed 7 years ago

alfredodeza commented 7 years ago

This is similar to issue #1 but more like a blanket warning (applies to any/all contexts)

The actual section is: osd pool default min size

From http://docs.ceph.com/docs/master/rados/configuration/pool-pg-config-ref/

This setting ensures a minimum number of replicas when operating in degraded mode.

That should translate to: setting it to 1 means you can end with lost data.