Change Ceph Data Replication

By default, Ceph data replication is configured with a replication factor of three to ensure maximum fault tolerance and data protection. This setting is automatically applied during CubeCOS installation.

Accessing CubeCOS cluster VIP via SSH

ssh [email protected]

Warning: Permanently added '192.168.1.x' (ECDSA) to the list of known hosts.
Password:

Change the Replication

Use command storage > rebalance

warning

Lowering the replication factor decreases data protection and increases the risk of data loss if an OSD failure occurs. For production clusters, reducing the replication factor is not recommended.

danger

Any changes to rebalancing or the replication factor can negatively impact active client I/O operations. It is recommended to perform these modifications during maintenance windows or be fully aware of the potential performance impact on active clients in the cluster.

controller> storage
controller:storage> rebalance
Input replication factor(1/2/3): 2