Block Storage: RLCS Singlesite

This is a variant of RLCS, but it's differentiator is being realized in a single datacenter. All data still has three replicas, but all the replicas will be stored in the same datacenter. Each availability zone have a dedicated Ceph cluster, ensuring data availability if there would be a problem with network connectivity or other availability zones.

Reasons to chose RLCS Singlesite above RLCS are:

• When you have 2 or more servers that are more or less identical, and you want to ensure that they are in different failure domains. This can be achieved by using different availability zones for the volumes.

Things to consider:

• When using RLCS Singlesite, the server should normally use the same AZ as the provisioned volume.