Ceph: Moving data from one OSD to others

sahostking

Renowned Member
So we always use 3/2 replication however we noticed that data was running out and we changed to 2/2 to keep it going and did not act fast enough.

In South Africa we have shortage of Enterprise SSDs so we are waiting on new stock we ordered via Amazon. But we found now that 2 disks are failing and we want to move data from those osds onto others without downtime.

With 2/2 we will have some downtime if we just take an OSD out. Is there a command to easily move data from 1 OSD that is failing and spread that data onto the others so we can safely take it out of cluster?
 

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