Block Storage: RLCS

The RLCS (Redpill Linpro Cloud Storage) block devices are stored on a Ceph cluster that spans 3 datacenters. All data are stored on fast NVMe drives, and all data is synchronously replicated to 3 datacentres. All data is encrypted at rest. In the event of a short or long term datacenter outage, the data is still stored securely in the storage cluster.

Reasons to chose RLCS above RLCS Singlesite are:

• The data you are storing isn't already replicated on the application level. Using RLCS will give you good basic protection against data loss by having cross-datacenter volumes.

Things to consider:

• Servers which use RLCS can be setup without Availability Zone set. This will allow the server to change datacenter in the event of a datacenter outage.

Availability Zone in RLCS

The Availability Zone-field has no practical effect when you create volumes of type rlcs. In all instances, the data is replicated to osl2, osl3 and osl4, regardless of what you chose. If you need the data to be limited to a single location, you should use RLCS-Singlesite.