CSS Common I/O storage class type will reach it’s EOS by July 1st, 2025

As by previous Release Notes for EVS called “EVS Common I/O reaches end-of-life on 01.01.2026” this change will affect also CSS instance deployments.

From July 1^st, 2025, onwards it will no longer be possible to create new Cloud Search Service (CSS) using Common I/O disks, as it will reach their end-of-sales on this date and will no longer be marketed/available.

What does this mean for my current running/deployed CSS instances with Common I/O storage?

Existing instances with Common I/O will remain untouched and will be supported until they are changed into a higher class like High I/O or Ultra High I/O storage class. This means that you need to plan a "Change Storage Type" for your Common I/O disks in use.

Here the way how to modify the Common I/O disk specifications:

1. Select right from the CSS cluster “More” and select “Modify Configuration”:

2. Select Scale Cluster, then in Action select Change Specifications than select “Data node” and in Node Storage Type Column select a different storage type to be modified and as the last step select Next.

3. Submit the change by selecting “Submit”

For Master and Client nodes:

4. Select from Step 2) select “Add Master/Client Node” instead of Scale Cluster, for Master Nodes select “Master Node” and for Client nodes, select “Client node” and select a different Storage type and finally select Next:

5. You will see an overview of the new changes and select “Submit”.

6. Please repeat this for all Master and Data nodes.

Important note:

The EOS and EOL planning from EVS Common I/O reaches end-of-life on 01.01.2026 will affect all Open Telekom Cloud services that offers Common I/O as storage type.

Please also keep in mind that Common I/O will reach EOL on January 1^st, 2026. In the meaning that it will be shut down and will stop working.

Further information can be found in Cloud Search Service documentation area of the Help Centers.