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NetApp Volume Worker Configuration Documentation

This document provides information on configuring NetApp backends for the isolated Cinder volume worker. Each backend is defined by a set of 11 comma-separated options, and multiple backends can be specified by separating them with semicolons.

!!! warning "The NetApp container is incompatible with iSCSI workloads"

The NetApp container is incompatible with iSCSI workloads. If the environment requires iSCSI support, review the [Cinder NetApp Worker ](openstack-cinder-netapp-worker.md) documentation instead.

Backend Options

Below is a table detailing each option, its position in the backend configuration, a description, and the expected data type.

Option Index Option Name Description Type
0 backend_name The name of the backend configuration section. Used as volume_backend_name. String
1 netapp_login Username for authenticating with the NetApp storage system. String
2 netapp_password Password for authenticating with the NetApp storage system. String
3 netapp_server_hostname Hostname or IP address of the NetApp storage system. String
4 netapp_server_port Port number to communicate with the NetApp storage system. Integer
5 netapp_vserver The name of the Vserver on the NetApp storage system. String
6 netapp:qos_policy_group The name of the QoS policy group. String
7 netapp_dedup Enable (True) or disable (False) deduplication. Boolean
8 netapp_compression Enable (True) or disable (False) compression. Boolean
9 netapp_thick_provisioned Use thick (True) or thin (False) provisioning. Boolean
10 netapp_lun_space_reservation Enable (enabled) or disable (disabled) LUN space reservation. String

Detailed Option Descriptions

  • backend_name: A unique identifier for the backend configuration. This name is used internally by Cinder to distinguish between different backends.
  • netapp_login: The username credential required to authenticate with the NetApp storage system.
  • netapp_password: The password credential required for authentication. Ensure this is kept secure.
  • netapp_server_hostname: The address of the NetApp storage system. This can be either an IP address or a fully qualified domain name (FQDN).
  • netapp_server_port: The port number used for communication with the NetApp storage system. Common ports are 80 for HTTP and 443 for HTTPS.
  • netapp_vserver: Specifies the virtual storage server (Vserver) on the NetApp storage system that will serve the volumes.
  • netapp:qos_policy_group: The Quality of Service (QoS) policy group name that will be applied to volumes for this backend.
  • netapp_dedup: A boolean value to enable or disable deduplication on the storage volumes. Acceptable values are True or False.
  • netapp_compression: A boolean value to enable or disable compression on the storage volumes. Acceptable values are True or False.
  • netapp_thick_provisioned: Determines whether volumes are thick (True) or thin (False) provisioned.
  • netapp_lun_space_reservation: A String indicating whether to enable space reservation for LUNs. If enabled, space is reserved for the entire LUN size at creation time.

Example opaque Configuration

Before deploying the NetApp volume worker, create the necessary Kubernetes secret with the BACKENDS environment variable:

kubectl --namespace openstack create secret generic cinder-netapp \
        --type Opaque \
        --from-literal=BACKENDS="backend1,user1,password1,host1,80,vserver1,qos1,True,True,False,enabled"

BACKENDS Environment Variable Structure

The BACKENDS environment variable is used to pass backend configurations to the NetApp volume worker. Each backend configuration consists of 11 options in a specific order.

Replace the placeholder values with your actual backend configuration details

BACKENDS="backend1,user1,password1,host1,80,vserver1,qos1,True,True,False,disabled;backend2,user2,password2,host2,443,vserver2,qos2,False,True,True,enabled"

Run the deployment

With your configuration defined, run the deployment with a standard kubectl apply command.

kubectl --namespace openstack apply -k /etc/genestack/kustomize/cinder/netapp