Multus prerequisites validation tool

The Multus prerequisites validation tool validates OpenShift configuration, NetworkAttachmentDefinitions, and network compatibility before Fusion Data Foundation installation.

This is an interactive tool to help support in-the-field debug and resolution of common configuration issues that affect Multus clusters. It runs a validation test that determines whether the current NetworkAttachmentDefinition, and system configurations support Fusion Data Foundation with Multus.

It is a long-running test. It starts up a web server and many clients to verify that Multus network communication works properly.

It does not perform any load testing. Networks that cannot support high volumes of Ceph traffic might still encounter runtime issues. This might be noticeable with high I/O load or during OSD rebalancing (for example, during node/disk failure or during Fusion Data Foundation upgrade). Therefore, it is recommended to perform network load testing to ensure that base network configurations meet user requirements. To know more about OSD rebalancing, see Rebalancing in Ceph documentation.