Defining Quality of Service
Simplyblock's Kubernetes CSI driver supports Quality of Service (QoS) to define minimum guaranteed performance characteristics of a logical volume.
To define the QoS properties, create a StorageClass with the required parameters.
StorageClass with Quality of Service
apiVersion: storage.k8s.io/v1
kind: StorageClass
metadata:
name: qos-volumes
provisioner: csi.simplyblock.io
parameters:
qos_rw_iops: 1000
qos_rw_mbytes: 125
qos_r_mbytes: 125
qos_w_mbytes: 125
... other parameters
reclaimPolicy: Delete
volumeBindingMode: Immediate
The available parameters are:
| Parameter Name | Value Type | Description | Optional | Default |
|---|---|---|---|---|
| qos_rw_iops | int | Defines the maximum IOPS reserved for a logical volume of this storage class. A zero (0) means no maximum. | true | 0 |
| qos_rw_mbytes | int | Defines the maximum total throughput in megabytes reserved for a logical volume of this storage class. A zero (0) means no maximum. | true | 0 |
| qos_r_mbytes | int | Defines the maximum read throughput in megabytes reserved for a logical volume of this storage class. A zero (0) means no maximum. | true | 0 |
| qos_w_mbytes | int | Defines the maximum write throughput in megabytes reserved for a logical volume of this storage class. A zero (0) means no maximum. | true | 0 |