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Enable periodic Ceph performance testing

TechPreview

Warning

This procedure is valid for MOSK clusters that use the MiraCeph custom resource (CR), which is available since MOSK 25.2 to replace the unsupported KaaSCephCluster resource. And MiraCeph will be automatically migrated to CephDeployment in MOSK 26.1. For details, see Deprecation Notes: KaaSCephCluster API on management clusters.

For the equivalent procedure with the unsupported KaaSCephCluster CR, refer to the following section:

Enable periodic Ceph performance testing

Warning

Performance testing affects the overall Ceph cluster performance. Do not run it unless you are sure that user load will not be affected.

This section describes how to configure periodic Ceph performance testing using Kubernetes batch or cron jobs that execute a fio process in a separate container with a connection to the Ceph cluster. The test results can then be stored in a persistent volume attached to the container.

Ceph performance testing is managed by the CephPerfTestRequest CR that handles test run. You can create a performance test for a single or scheduled runs.