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CephPerfTestRequest CR perftest specification¶

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

KaaSCephOperationRequest CR perftest specification

This section describes the CephPerfTestRequest CR specification. For the procedure workflow, see Create a Ceph performance test request.

Ceph performance test parameters¶

Parameter	Description
`parameters`	A list of command arguments for a performance test execution. For all available parameters, see fio documentation. Note Performance test results will be saved on a PVC if the test run parameters contain an argument to save to a file. Otherwise, test results will be saved only as Pod logs. For example, for the default `fio` image, use the `--output=/results/<fileName>` option to redirect to a file that will be saved on the attached PVC. Configuring a mount point is not supported.
`command`	Optional. Entrypoint command to run performance test in the container. If the performance image is updated, you may also update the command. By default, equals the image entry point.
`image`	Container image to use for jobs. By default, `vineethac/fio_image`. Mirantis recommends using the default `fio` image as it supports multitude I/O engines. For details, see fio man page.
`periodic`	Configuration of the performance test runs as periodic jobs. Leave empty if a single run is required. For details, see Ceph performance periodic parameters.
`saveResultOnPvc`	Option that enables saving of the performance test results on a PVC. Contains the following fields: `pvcName` - PVC name to use. If not specified, a PVC name for the performance test will be created automatically. Namespace is static and equals `rook-ceph`. `pvcStorageClass` - `StorageClass` to use for PVC. If not specified, the default storage class is used. `pvcSize` - PVC size, defaults to `10Gi`. `preserveOnDelete` - PVC preservation after removal of the performance test.

Ceph performance periodic parameters¶

Parameter	Description
`schedule`	Required. Schedule in base cron format. For example, `* * 30 2 \*`. The field format follows the Cron schedule syntax.
`suspended`	Pause CronJob scheduling to prevent performance test execution. Only for future scheduling.
`runsToKeep`	Number of runs to keep in history. Supported only by keeping old run Pods with their outputs.